Average Temperature in Seattle in July: Insights on Summer Weather Trends

In Seattle, the average temperature in July is a daily high of 79°F (26°C) and a daily low of 58°F (14°C). The month experiences mild and humid conditions. July is part of the warm season, running from late June to mid-September, marked by higher temperatures and more sunshine.

Seattle’s average temperature in July contributes to its reputation as a summer destination. The mild climate fosters vibrant outdoor festivals, lush parks, and waterfront activities. Although occasional heatwaves can occur, they are usually brief. Rain is less frequent in July, giving residents a chance to enjoy the sunshine.

Understanding the average temperature in Seattle in July reveals broader summer weather trends. The warming of this month reflects changing climate patterns and seasonal variations. These insights help residents plan effectively for outdoor events, travel, and recreational activities. As we delve deeper, we will explore how these historical temperature patterns influence local ecosystems and the natural environment. This exploration will highlight the interconnected nature of weather, climate, and community life.

What Is the Average Temperature in Seattle in July?

The average temperature in Seattle in July is typically mild and pleasant, often around 75°F (24°C) during the day and cooler at night.

According to the National Oceanic and Atmospheric Administration (NOAA), July is one of the warmest months for Seattle, characterized by relatively low precipitation and longer daylight hours.

The pleasant average temperature is due to Seattle’s coastal climate. This climate leads to moderate summer temperatures, influenced by ocean breezes and the surrounding mountains.

The Western Regional Climate Center emphasizes that Seattle often experiences temperatures ranging from the mid-60s to mid-80s°F (18-29°C) in July, with minimal rainfall.

Several factors contribute to the temperature in Seattle. The Pacific Ocean moderates temperatures, while geographical features like the Cascade Mountains create unique weather patterns.

Historical climate data indicates that Seattle’s average temperature in July has risen by about 2°F (1.1°C) over the past century, as noted by climate studies from the University of Washington.

A rise in average temperatures can impact urban planning, agriculture, and outdoor activities in Seattle, affecting local lifestyles and economic activities.

Increased temperatures can affect health, leading to heat-related illnesses, while also influencing the local economy by impacting tourism and agriculture.

For example, warmer summers can boost demand for cooling systems, but may also stress energy resources and increase energy costs.

Experts suggest improving green spaces and employing urban heat management strategies to mitigate the effects of rising temperatures, as recommended by the American Planning Association.

Incorporating sustainable building practices, increasing tree cover, and promoting public transportation can help manage urban heat and improve overall city resilience.

What Are the Expected Highs and Lows for July in Seattle?

The expected highs and lows for July in Seattle range from 75°F to 55°F.

  1. Expected Highs:
    – Average temperature: 75°F
    – Record high temperature: 100°F

  2. Expected Lows:
    – Average low temperature: 55°F
    – Record low temperature: 47°F

  3. Popular Activities:
    – Outdoor festivals and events
    – Hiking in nearby national parks

  4. Competing Views:
    – Some argue July is too hot for comfort.
    – Others appreciate the warm weather for tourism and recreation.

The varying perspectives on July’s weather in Seattle reveal insights about its mixed reception.

  1. Expected Highs:
    The expected highs in July refer to the average and record high temperatures recorded in Seattle. The typical daily high temperature is around 75°F. This temperature is comfortable for outdoor activities but may feel warm during peak sunlight hours. The city has experienced record highs reaching up to 100°F on rare occasions. Such extreme temperatures can lead to heat advisories and affect public health.

  2. Expected Lows:
    The expected lows in July outline Seattle’s nighttime temperatures during summer. The average low is about 55°F, ideal for sleeping and outdoor evening gatherings. Rarely, temperatures may drop to a record low of 47°F. Such cooler nights following warmer days contribute to the overall pleasant summer experience in Seattle.

  3. Popular Activities:
    The activities popularized by Seattle’s warm July often include outdoor festivals and events. Residents and tourists flock to parks and waterfronts for fun and relaxation. Moreover, hiking in nearby national parks becomes a favored pastime during this time. Nature enthusiasts benefit from the clear skies and vibrant scenery, making it an appealing season for exploration.

  4. Competing Views:
    Opinions regarding July weather can vary. Some residents find the warmth uncomfortable, especially during peak temperatures. Conversely, many appreciate the heat, as it attracts tourists and supports the local economy. This mixture of perspectives underscores the city’s unique climate and its impact on lifestyle and activities.

How Does Seattle’s July Temperature Compare to Other Cities?

Seattle’s average temperature in July typically ranges from 55°F (13°C) to 75°F (24°C). Here is a comparison of Seattle’s July temperatures with those of several other major cities:

CityAverage July Temperature (°F)Average July Temperature (°C)
Seattle65°F18°C
Los Angeles75°F24°C
New York City80°F27°C
Chicago75°F24°C
Miami85°F29°C
Denver80°F27°C
San Francisco65°F18°C

Why Is Seattle’s July Climate Unique Relative to Coastal Cities?

Seattle’s July climate is unique among coastal cities due to its relatively warm and dry conditions. Unlike many coastal areas that experience cool and damp weather in summer, Seattle enjoys a warmer temperate climate marked by low humidity and minimal rainfall in July.

The National Oceanic and Atmospheric Administration (NOAA) defines Seattle’s climate as a Mediterranean climate, characterized by dry summers and relatively wet winters. This classification positions Seattle uniquely among other coastal cities which typically experience more uniform temperatures and precipitation throughout the year.

The unique July climate in Seattle results from multiple factors. First, the presence of the Pacific Ocean moderates temperatures but also creates a rain shadow effect due to the Olympic Mountain range to the west. This mountain range blocks moist air from the ocean, causing it to lose moisture as precipitation before it reaches Seattle. Second, the North Pacific High, a semi-permanent high-pressure system during summer, settles over the region, suppressing cloud formation and rainfall. These conditions create a stable atmosphere that leads to clear skies and warm temperatures.

In terms of technical definitions, the rain shadow effect is the phenomenon where prevailing winds carry moisture-laden air over mountains. As the air rises, it cools and condenses, resulting in rainfall on the windward side. The leeward side, however, remains dry, as the air descends, warms, and holds less moisture. Seattle is situated on the leeward side of the Olympic Mountains, which exemplifies this concept.

Mechanistically, the combination of geographical features and atmospheric conditions generates a climate conducive to warm and dry weather in July. The Pacific Ocean initially cools the air, but as it moves inland and encounters the Olympic Mountains, moisture is lost. Concurrently, the high-pressure system stabilizes the region, limiting cloud formation and precipitation, which promotes warmer day-time temperatures.

Specific conditions that contribute to Seattle’s unique July climate include the high-pressure systems from the Pacific Ocean and the geographical barrier posed by the Olympic Mountains. For example, when a high-pressure system settles over Seattle, the city often enjoys days of sunshine and warm temperatures, sometimes exceeding 80°F (27°C). This situation contrasts sharply with coastal cities like San Francisco, where fog and cooler temperatures prevail.

In summary, Seattle’s July climate is characterized by warmth and dryness due to a combination of geographical effects and atmospheric conditions. These factors work together to create a summer climate that is notably different from other coastal cities.

What Are the Patterns of Cloud Cover in Seattle in July?

The patterns of cloud cover in Seattle during July typically show a mix of sunshine and cloudiness. July generally features less cloud cover than other months, with an increase in sunny days.

  1. Average Cloud Cover
  2. Frequency of Sunny Days
  3. Variability in Weather Conditions
  4. Influence of the Marine Climate
  5. Residents’ Perspectives on July Weather

The following sections explain these points in detail.

  1. Average Cloud Cover: The average cloud cover in Seattle in July is approximately 49%. This statistic indicates that while the city experiences many clear days, clouds are still a significant presence. According to preliminary data from the National Oceanic and Atmospheric Administration (NOAA), July is one of the driest months for Seattle.

  2. Frequency of Sunny Days: In July, Seattle sees an average of 10 to 12 days classified as sunny. This is a notable contrast compared to winter months when cloudiness is more prevalent. The increase in sunshine can contribute to a more pleasant atmosphere, encouraging outdoor activities.

  3. Variability in Weather Conditions: Weather conditions in Seattle can vary significantly, even within a week. Although July generally favors sunnier weather, unexpected weather patterns can lead to overcast conditions. For instance, weather systems from the Pacific can bring clouds and cooler air.

  4. Influence of the Marine Climate: Seattle’s weather is heavily influenced by its marine climate. The nearby Pacific Ocean moderates temperatures and contributes to the potential for cloud formation. This means that while July may be typically drier, fluctuations can occur due to oceanic conditions.

  5. Residents’ Perspectives on July Weather: Many Seattle residents enjoy the drier weather in July. However, some may express nostalgia for the familiar cloud cover that characterizes other months. The contrast between sunny July days and the often gray skies of fall can amplify appreciation for summer’s blue skies, highlighting differing opinions on preferred weather.

In summary, Seattle’s July weather showcases a mix of sunny days, average cloud cover, and a unique marine influence. Residents appreciate the warm weather while acknowledging the city’s typical cloudy conditions.

How Do Clouds Affect Perceptions of Temperature?

Clouds significantly influence perceptions of temperature by affecting sunlight, altering humidity, and modifying nighttime heat loss. This interplay can lead to feelings of warmth or coolness, depending on the cloud cover present.

  1. Sunlight reduction: Clouds block direct sunlight, which can make temperatures feel cooler during the day. According to the National Oceanic and Atmospheric Administration (NOAA, 2021), a fully cloudy sky can reduce solar radiation by up to 80%. This reduction can create a noticeable drop in temperature, particularly in regions where sunshine is typically abundant.

  2. Humidity changes: Clouds often indicate high humidity levels. High humidity can make air feel warmer due to the moisture content. The American Meteorological Society explained in their journal (Brown & McCarthy, 2019) that moisture in the air can make temperature feel several degrees warmer. This phenomenon is often felt in tropical regions where humidity and cloud cover are prevalent.

  3. Nighttime heat retention: Clouds can trap heat at night. They act like a blanket, preventing heat from escaping back into space. A study published in the Journal of Climate (Zhang et al., 2020) found that nights with cloud cover can be up to 10°F warmer than clear nights. This can lead to a perception of a milder climate, especially in equatorial and temperate zones.

  4. Visual cues: Clouds can influence psychological perceptions of temperature. On overcast days, people may expect cooler temperatures simply due to the lack of bright sunlight. Research in environmental psychology reveals that visual factors greatly affect human emotions and behaviors related to temperature perception (Kaplan & Kaplan, 1989).

These key points demonstrate that clouds play a crucial role in shaping how we perceive temperature in various conditions.

What Is the Average Rainfall in Seattle During July?

The average rainfall in Seattle during July is about 0.7 inches (17.8 mm). This figure denotes the total precipitation observed over the month, which is typically characterized by drier weather patterns compared to other months.

According to the National Oceanic and Atmospheric Administration (NOAA), Seattle experiences a maritime climate. This means the city has moderate temperatures and variable rainfall influenced by its proximity to the Pacific Ocean.

Seattle’s weather in July is generally mild. The city tends to have long daylight hours, with temperatures averaging between 55°F (13°C) and 75°F (24°C). The lower rainfall amounts are a result of the Pacific High, a pressure system that brings stable weather to the region during summer.

The Weather Atlas provides further insights, stating that July is usually the driest month in Seattle. Characteristics such as lower humidity and less cloud cover contribute to this drier spell.

Factors such as geographical location, ocean currents, and atmospheric pressure systems impact rainfall levels. The presence of the Cascade Mountains can also influence weather patterns by creating rain shadows.

Data from NOAA indicates that the average July precipitation has decreased slightly over the decades, showcasing a trend of warmer and drier summers.

Lower rainfall impacts local ecosystems by affecting water availability for plants and wildlife. It also influences agricultural practices in surrounding areas.

In health terms, less rain reduces the risk of waterborne diseases. However, prolonged dryness may increase forest fire risks due to drier conditions.

To address potential drought conditions, experts recommend implementing water conservation strategies, such as rainwater harvesting and xeriscaping.

Practices like reforestation and improved irrigation systems can also mitigate negative impacts on the environment and water supply.

How Does Precipitation Influence Outdoor Activities in July?

Precipitation influences outdoor activities in July by determining the conditions for various events. When it rains, people may choose indoor activities such as visiting museums or enjoying movies. Conversely, dry weather encourages outdoor activities like hiking, picnics, or sports events.

Weather conditions directly affect participation rates in these activities. For example, heavy rainfall can lead to cancellations of outdoor events due to safety concerns. Additionally, temperatures can be cooler during rainy periods, impacting comfort levels for outdoor enjoyment.

Seasonal trends also affect precipitation patterns. July often sees summer storms, which can create unpredictable weather conditions. This variability can lead to last-minute changes in plans, as individuals and event organizers respond to real-time forecasts.

Overall, precipitation significantly impacts outdoor plans, shaping what activities are feasible and enjoyable during this month.

What Are the Typical Sunlight Hours in Seattle in July?

The typical sunlight hours in Seattle during July range from about 15 to 16 hours per day.

  1. Average daily sunlight hours
  2. Seasonal variations in sunlight
  3. Influence of geographical location
  4. Cultural and recreational opportunities

Seattle enjoys extended daylight in July, making it a vibrant time for outdoor activities.

  1. Average Daily Sunlight Hours:
    The average daily sunlight hours in Seattle during July generally falls between 15 to 16 hours. The city experiences long days due to its northern latitude. Sunrise typically occurs around 5:30 AM and sunset can be as late as 9:00 PM. This duration of daylight is ideal for various activities, from sightseeing to outdoor sports.

  2. Seasonal Variations in Sunlight:
    Seasonal variations affect sunlight hours significantly. In summer months, daylight extends, while in winter, it decreases sharply. Seattle experiences the longest days in June and July, with daylight decreasing by almost an hour by August. This seasonal pattern influences tourism and local events, as longer daylight hours encourage outdoor festivals and gatherings.

  3. Influence of Geographical Location:
    Seattle’s geographical location contributes to its summer daylight hours. The city’s position at a latitude of approximately 47.6° N means it experiences more extreme variations in daylight across seasons compared to cities closer to the equator. This unique positioning allows for extended twilight periods in the evenings.

  4. Cultural and Recreational Opportunities:
    The long sunlight hours in July offer numerous cultural and recreational opportunities. Residents and tourists participate in outdoor concerts, festivals, and activities like hiking, biking, and picnics. The extended daylight encourages people to enjoy local parks such as Discovery Park or visit attractions like the Seattle Great Wheel, maximizing their experience in the city.

What Time Do the Sun Rise and Set in July?

The sunrise and sunset times in July vary based on geographic location. For most locations in the Northern Hemisphere, the sun typically rises earlier and sets later during this month.

  1. Geographic Variability:
    – Sunrise and sunset times differ significantly across various regions.
    – Locations closer to the poles experience more extended daylight.

  2. Date-Specific Changes:
    – Sunrise times generally become earlier as the month progresses.
    – Sunset times usually become later throughout July.

  3. Climate Factors:
    – Local climate can influence the perceived timing of sunrise and sunset.
    – Weather patterns, such as cloud cover, affect visibility during these times.

The geographic variability in sunrise and sunset times demonstrates how location influences daylight length.

  1. Geographic Variability:
    Geographic variability refers to how sunrise and sunset times change based on specific locations. Areas near the equator typically experience relatively consistent sunrise and sunset times throughout the year, whereas areas closer to the poles, like Norway or Alaska, see a dramatic difference during summer months. For instance, in Anchorage, Alaska, the sun can rise as early as 4:20 AM and set as late as 11:42 PM in July.

  2. Date-Specific Changes:
    In July, sunrise times generally get earlier while sunset times extend later, representing an increase in daylight hours. For example, in New York City, sunrise occurs at about 5:29 AM on July 1 and shifts to 5:40 AM by the end of the month. Conversely, sunset times progress from around 8:30 PM at the beginning of July to about 8:20 PM by month’s end.

  3. Climate Factors:
    Local climate influences the visibility and experience of sunrise and sunset. Weather can obscure the sun, especially in areas with frequent cloud cover or rain during July. For example, cities like Seattle may have an early sunrise, but persistent clouds could affect the view. This discrepancy can significantly impact the enjoyment of outdoor activities during these times.

In summary, while sunrise and sunset times in July can generally be tracked based on geographic location and time of year, local climate conditions also play a crucial role in the overall experience of these natural events.

How Does Humidity Impact Comfort Levels in Seattle in July?

Humidity significantly impacts comfort levels in Seattle in July. During this month, Seattle typically experiences warmer temperatures and increased humidity levels. These conditions can make the air feel more oppressive, leading to discomfort.

Higher humidity reduces the body’s ability to cool itself through sweat evaporation. When humidity levels rise, the air holds more moisture, which can lead to a muggy feeling. This sensation often makes the temperature feel warmer than it actually is.

Conversely, lower humidity can enhance comfort by promoting effective sweat evaporation. In July, humidity levels in Seattle can vary. Sometimes they can spike, especially during heat waves.

To summarize, increased humidity in July can decrease comfort levels by making warm temperatures feel even hotter. Thus, understanding humidity’s role helps predict how comfortable residents and visitors may feel during the summer months.

What Are the Average Humidity Levels During This Month?

The average humidity levels during this month vary by location. Typically, it can range from 40% to 80%, depending on regional climate.

  1. Regional Variations in Humidity
  2. Impact of Weather Patterns
  3. Seasonal Influences
  4. Human Perception of Humidity
  5. Climate Change Effects on Humidity Levels

The above points highlight different aspects of humidity levels during this month, reflecting various influences and perspectives.

  1. Regional Variations in Humidity: Regional variations in humidity encompass the differences in moisture levels found in different geographical areas. Coastal regions often experience higher humidity levels, while inland areas can be significantly drier. For instance, cities like Miami may see average humidity around 75%, while a city like Denver might have averages closer to 40%. This variability is influenced by proximity to large bodies of water.

  2. Impact of Weather Patterns: The impact of weather patterns on humidity involves how atmospheric conditions affect moisture levels. For example, a storm system can increase humidity by bringing moist air from the ocean. Conversely, high-pressure systems can lead to clear skies and lower humidity. The National Oceanic and Atmospheric Administration (NOAA) explains that these fluctuations can significantly affect day-to-day humidity levels.

  3. Seasonal Influences: Seasonal influences on humidity reflect how different seasons affect moisture in the air. Summer typically sees higher humidity due to warm temperatures, which can hold more moisture. In contrast, winter months often bring lower humidity levels. Data from the World Meteorological Organization (WMO) notes that regions like Southeast Asia can experience humidity levels over 80% during the summer monsoon, affecting comfort and health.

  4. Human Perception of Humidity: Human perception of humidity pertains to how people feel the effects of humidity, which can influence comfort levels. High humidity can make temperatures feel hotter, leading to discomfort. The Heat Index, which combines temperature and humidity to depict how hot it feels, illustrates this phenomenon. A study by the American Meteorological Society shows that high humidity can cause heat-related illnesses more than temperature alone.

  5. Climate Change Effects on Humidity Levels: Climate change effects on humidity levels involve the potential for rising global temperatures to alter moisture distribution. As the atmosphere warms, it can hold more water vapor, leading to increased humidity in many areas. Research published by the Intergovernmental Panel on Climate Change (IPCC) suggests that enhanced humidity could increase extreme weather events, impacting ecosystems and human comfort.

By understanding these elements, one can better appreciate the complexities surrounding average humidity levels during this month.

How Does Wind Affect Seattle’s Weather in July?

Wind affects Seattle’s weather in July primarily by influencing temperature, humidity, and precipitation. In July, prevailing winds from the Pacific Ocean bring cooler air to the region. This cooling effect can result in pleasant daytime temperatures, typically ranging from the mid-70s to low 80s Fahrenheit.

Additionally, these winds help maintain low humidity levels and reduce the likelihood of summer storms. However, if winds shift and come from the east, they can bring warmer, drier air, potentially increasing temperatures. Overall, the oceanic winds play a crucial role in creating Seattle’s mild and enjoyable summer climate.

What Are the Average Wind Speeds and Directions in July?

The average wind speeds in July typically range from 5 to 15 miles per hour, with predominant wind directions varying by region.

  1. Average Wind Speed Range
  2. Predominant Wind Directions
  3. Regional Variations
  4. Impact on Weather Patterns
  5. Local Perspectives on Wind Conditions

The discussion of average wind speeds and directions leads to various factors influencing these measurements, including geographical location and local climate conditions.

  1. Average Wind Speed Range:
    The average wind speed during July generally varies between 5 and 15 miles per hour. This range reflects typical breezy summer conditions across many regions. According to the National Oceanic and Atmospheric Administration (NOAA), cities like San Francisco average about 10 miles per hour, while places in the Midwest may experience slightly lower speeds around 8 miles per hour.

  2. Predominant Wind Directions:
    The predominant wind directions in July also differ by region. Coastal regions usually experience winds from the ocean, often coming from the west. In contrast, inland areas may have winds predominantly from the northwest or southeast. Studies show that this variation impacts local climates significantly, contributing to factors like humidity and temperature variations.

  3. Regional Variations:
    Regional variations in wind speed and direction can be substantial. For instance, the Great Plains often see stronger winds, averaging closer to 15 miles per hour. Conversely, mountainous areas tend to have more variable conditions with localized gusts. Research by the American Meteorological Society indicates that local topography plays a crucial role in determining wind characteristics.

  4. Impact on Weather Patterns:
    Wind speeds and directions can affect broader weather patterns. Higher wind speeds can lead to increased evaporation, impacting humidity and precipitation levels. Case studies, such as those conducted by the Climate Research Journal in 2021, linked summer wind dynamics to localized storm formation and heatwaves in certain regions.

  5. Local Perspectives on Wind Conditions:
    Local residents often have varied perspectives on the wind conditions in July. Coastal communities may see winds as refreshing, while those in arid regions may find them a nuisance. This diversity in experience highlights how subjective interpretations of weather phenomena can vary widely based on personal lifestyle and preferences.

In conclusion, the average wind speeds and their directions during July are influenced by multiple factors, reflecting both numerical averages and individual regional contexts.

What Should Visitors Know About Seattle’s Weather in July?

The weather in Seattle during July is typically warm and pleasant, with average temperatures ranging from 57°F (14°C) to 75°F (24°C). Visitors should expect relatively low rainfall, a common trait of Seattle’s summer season.

  1. Average temperatures generally range from 57°F to 75°F.
  2. Rainfall is minimal, averaging about 1 inch for the month.
  3. The city enjoys long daylight hours, with up to 16 hours of daylight.
  4. Crowds increase as July is a popular tourist month.
  5. Outdoor festivals and events are abundant in July.
  6. Weather can vary between areas within the city.

Given these points, it is essential for visitors to understand the nuances of Seattle’s July weather for an enjoyable experience.

1. Average Temperatures: The average temperatures in Seattle during July clearly vary from 57°F to 75°F. This range allows for a pleasant experience outdoors, with days often feeling warm. According to the National Weather Service, these temperatures make July one of the warmest months in Seattle.

2. Minimal Rainfall: July typically features minimal rainfall, averaging about 1 inch for the entire month. This significantly contrasts with the wetter months of winter and spring. The Seattle Office of Arts and Culture indicates this dry spell encourages many outdoor activities and sightseeing opportunities.

3. Long Daylight Hours: Seattle enjoys up to 16 hours of daylight in July, enhancing the experience for visitors. Extended daylight promotes a variety of outdoor events and activities, contributing to a vibrant atmosphere in the city.

4. Increased Crowds: July sees an influx of tourists, making it a busy month for Seattle. Hotels, restaurants, and popular attractions may experience larger crowds. According to Visit Seattle, this can lead to longer wait times and the need for advanced bookings.

5. Abundant Outdoor Festivals: Numerous outdoor festivals occur in July, showcasing local culture and community spirit. Notable events include Seattle International Beerfest and Seafair. These gatherings provide unique entertainment options and opportunities to mingle with locals.

6. Weather Variability: Weather can differ within various neighborhoods of Seattle. Coastal areas may experience milder temperatures, while areas further inland can be warmer. Visitors should check local forecasts for their specific destinations to prepare their attire appropriately.

Understanding these factors will enhance visitors’ experiences in Seattle during July.

How Can Visitors Prepare for Seattle’s July Climate?

Visitors can prepare for Seattle’s July climate by understanding its weather patterns and packing accordingly. July in Seattle is generally mild and dry, but occasional rain can occur.

  1. Temperatures: Average daytime temperatures range from the mid-70s to low 80s Fahrenheit (around 24 to 29 degrees Celsius). Mornings and evenings can be cooler, with temperatures dropping into the mid-50s Fahrenheit (about 13 degrees Celsius). This data comes from the National Weather Service (NWS, 2023).

  2. Precipitation: July is one of the driest months in Seattle, with an average rainfall of about 1 inch (25 mm). However, light rain can happen unexpectedly. Visitors should carry a lightweight rain jacket or an umbrella for these rare occurrences.

  3. Sunshine: Seattle enjoys long daylight hours in July, with an average of about 15 hours of sunlight each day. Wearing sunglasses and using sunscreen can help protect against UV rays, even on cloudy days, as about 80% of UV rays can reach the skin through clouds.

  4. Wind: Summer breezes from the Puget Sound can make the air feel cooler. It is wise to include a light sweater or jacket for evenings out, especially if near the waterfront.

  5. Humidity: The relative humidity in July is around 60%. This level can make the air feel slightly warmer. Staying hydrated is essential, especially for those involved in outdoor activities.

  6. Clothing: Visitors should consider a mix of clothing. Light layers, such as t-shirts paired with long-sleeve shirts or light sweaters, work well. Comfortable shoes are also important for walking around the city.

By considering these factors, visitors can enjoy a comfortable and enjoyable experience in Seattle during July.

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