The average temperature in Honolulu in December is 79°F. Daily temperatures range from a maximum of 82°F to a minimum of 63°F. By the end of December, the average maximum temperature increases to 81°F. The climate in December is warm and pleasant, making it an attractive time to visit.
December marks the start of Hawaii’s winter season. During this time, the islands attract many travelers seeking sun and warmth. Ocean temperatures remain comfortable, averaging 76°F (24°C), ideal for swimming and water sports. Visitors should consider packing light clothing, sunscreen, and a light jacket for cooler evenings.
As you plan your winter trip, understanding the average weather in Honolulu in December can enhance your experience. It’s essential to prepare for both sunny beach days and the rare rain showers. After outlining the weather conditions, let’s explore the range of activities that Honolulu offers during this festive month, maximizing your enjoyment despite the weather fluctuations.
What Are the Average High and Low Temperatures in Honolulu in December?
The average high temperature in Honolulu in December is about 80°F (27°C), while the average low temperature is approximately 65°F (18°C).
- Average High Temperature
- Average Low Temperature
- Humidity Levels
- Rainfall Expectations
- Wind Conditions
The discussion on Honolulu’s weather extends beyond high and low temperatures to include humidity, rainfall, and wind. Each of these factors plays a role in shaping the overall climate experience during December.
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Average High Temperature:
The average high temperature refers to the warmest daily temperature throughout the month. In Honolulu, this average is consistently around 80°F (27°C) during December. This temperature is favorable for outdoor activities and beach outings, making it a popular destination for holiday travelers. -
Average Low Temperature:
The average low temperature indicates the coolest daily temperature for the month. In Honolulu, this average remains around 65°F (18°C) in December. These mild temperatures provide comfortable nights for those enjoying local events, dining, and nightlife. -
Humidity Levels:
Humidity levels in Honolulu in December can average around 70-80%. Higher humidity can make the temperature feel warmer and may lead to a tropical feel. Visitors should prepare for these conditions as they can affect comfort levels when participating in outdoor activities. -
Rainfall Expectations:
December is part of the rainy season in Hawaii. Honolulu receives approximately 3 inches (76mm) of rain on average during this month. Rainfall may increase in frequency, especially in the form of brief showers. Nonetheless, these typically do not last long, allowing for sunny periods. -
Wind Conditions:
Wind conditions in Honolulu during December generally feature moderate trade winds. These winds usually provide a refreshing breeze that counters the heat. The trade winds average around 15-20 miles per hour (24-32 kilometers per hour), enhancing overall comfort.
In conclusion, the weather in Honolulu during December combines pleasant high and low temperatures. Visitors can expect tropical conditions punctuated by occasional rainfall and refreshing trade winds.
How Much Rainfall Can You Expect in December in Honolulu?
In December, Honolulu typically experiences an average rainfall of about 2.5 inches (64 millimeters). This month marks the peak of the wet season in Hawaii, which runs from November to March. On average, Honolulu sees about 10 rainy days in December, with rainfall mostly occurring in short, heavy bursts.
Rainfall distribution can vary significantly across Honolulu. For example, areas closer to the mountains, like Manoa Valley, generally receive more rainfall than coastal regions. Manoa Valley may average over 5 inches of rain, while coastal areas can receive less, around 1.5 inches.
Factors that influence rainfall include ocean currents, trade winds, and local topography. The northeast trade winds bring moisture from the ocean, impacting how much rain falls in different spots. Additionally, seasonal weather patterns, such as El Niño, may intensify rainfall during this time, while La Niña could bring drier conditions.
It is essential to consider that rainfall can be unpredictable. Short, heavy showers can happen unexpectedly, affecting outdoor plans. Travelers should prepare for both dry and wet conditions when visiting Honolulu in December.
In summary, December in Honolulu usually sees about 2.5 inches of rainfall, with variations based on location and weather patterns. Visitors should plan for potential rain while enjoying the warm climate. Further exploration could involve looking into historical weather data to understand trends more deeply.
What Is the Humidity Level Like in December in Honolulu?
Humidity levels in December in Honolulu typically range from 65% to 80%. This means that the air contains a significant amount of moisture, affecting comfort and weather conditions. The relative humidity can create a warm, moist environment, characteristic of tropical climates.
According to the National Oceanic and Atmospheric Administration (NOAA), relative humidity is a measurement of the current amount of water vapor in the air compared to the maximum amount it can hold at that temperature. High humidity can influence how temperature feels to individuals.
Humidity can impact daily life in several ways. It often affects outdoor activities, as high humidity may lead to discomfort. Additionally, humidity can affect weather patterns, leading to increased rainfall during the winter months in Hawaii.
The World Meteorological Organization (WMO) further states that humidity levels are pivotal in defining local climate. As an island destination, Honolulu experiences varying humidity levels based on geographical and seasonal factors.
Contributing factors to humidity in Honolulu include warm ocean currents and trade winds. These elements can lead to moisture accumulation, particularly during the winter months.
Data from the Hawaii State Climate Office indicates that average December humidity levels hover around 74%, with daily highs often reaching 80% during mornings and dropping slightly in the afternoons. These levels can influence both comfort and tourism activities.
High humidity can lead to discomfort, affecting tourism and local health. It may also exacerbate respiratory issues and mold growth, impacting home environments and public health.
Health impacts include increased incidences of allergies and respiratory problems. Economically, discomfort from humidity may influence tourist numbers and outdoor-related businesses.
Examples of these impacts include a potential decline in outdoor activities and increased demand for air conditioning in homes and hotels. This can lead to higher energy consumption and costs.
The Hawaii Department of Health recommends effective ventilation and humidity control measures. Utilizing dehumidifiers in homes can also help manage indoor moisture levels effectively.
Strategies to manage humidity include using air conditioning, keeping windows closed during high humidity, and installing ventilation systems. Experts suggest educating the public on humidity’s effects and promoting sustainable building practices to reduce energy consumption.
How Many Hours of Sunshine Are There in December in Honolulu?
Honolulu experiences an average of about 6 hours of sunshine per day in December. This means that, throughout the month, residents and visitors can expect approximately 186 hours of total sunshine.
The amount of sunshine can vary due to several factors. Cloud cover and rain can affect daily sunshine hours. December is part of Honolulu’s wetter season. Rainfall averages around 3.4 inches for the month, which can lead to increased cloudiness. Despite this, days often start sunny before clouds build later, especially in the afternoons.
For example, on a typical December day in Honolulu, the morning may be clear and bright, yielding the full 6 hours of sunshine. In contrast, on a rainy day, sunshine may only amount to 3 or 4 hours.
Additional factors influencing sunshine hours include local geography and atmospheric conditions. Areas with more mountains may receive higher rainfall, thus reducing sunshine. However, areas closer to the coast usually experience more consistent sunshine.
In summary, while Honolulu averages about 6 hours of sunshine per day in December, variations occur due to weather conditions and geographical features. Those planning a visit should consider the possibility of rain and cloud cover, although clear days are also common. For further exploration, one might look into historical weather patterns or the impact of climate change on seasonal weather in the region.
What Is the Ocean Temperature in December in Honolulu?
The ocean temperature in December in Honolulu typically ranges from 24°C to 27°C (75°F to 81°F). Ocean temperature refers to the warmth of the ocean’s water, influenced by various climatic and geographical factors.
The National Oceanic and Atmospheric Administration (NOAA) provides data related to coastal and ocean conditions, including temperature variations across months. Their reports help in understanding these temperature patterns.
In December, ocean temperatures are generally stable due to climatic consistency. The water remains warmer than the air, leading to a pleasant swimming experience for locals and tourists alike. Ocean temperature affects marine life, weather patterns, and recreational activities.
According to the World Meteorological Organization, warm waters in December promote biodiversity, as numerous marine species thrive in these conditions. Seasonal changes can lead to variations in ocean currents and fish migration patterns.
Factors influencing ocean temperature include seasonal weather patterns, ocean currents, and atmospheric conditions. Increased sunlight during summer months heats the water, while winter brings cooler temperatures and varying wind patterns.
Data indicates that average ocean temperatures in Honolulu have risen by approximately 1.5°C over the last 50 years, according to NOAA reports. Continued warming may significantly impact marine ecosystems and local weather events.
Warmer ocean temperatures lead to coral bleaching, shifts in fish populations, and altered weather patterns, affecting local communities and economies dependent on fishing and tourism.
For long-term impact, adopting sustainable fishing practices and protecting coral reefs can help mitigate negative consequences. Organizations like the Ocean Conservancy recommend conservation strategies to safeguard marine environments.
Implementing technologies such as water temperature monitoring systems and promoting eco-tourism can assist in managing the effects of rising ocean temperatures. These measures can create a balance between preservation and economic growth.
How Do Trade Winds Affect the Weather in December in Honolulu?
Trade winds significantly influence the weather in December in Honolulu by bringing cooler temperatures, enhancing humidity levels, and contributing to rainfall patterns.
The impact of trade winds on Honolulu’s December weather can be detailed as follows:
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Cooler Temperatures: Trade winds typically originate from the northeast. In December, these winds help maintain an average temperature range of 70°F to 80°F (21°C to 27°C). The steady breeze helps to counterbalance the warmer air, making the climate feel more comfortable.
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Enhanced Humidity: Trade winds increase humidity levels by drawing moisture from the ocean. In December, humidity averages around 70%. This moisture can make the air feel warmer and can also contribute to cloudy skies and precipitation.
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Rainfall Patterns: The trade winds encourage orographic rainfall, which occurs when moist air is pushed up over the mountains. In December, Honolulu experiences about 2.5 inches (63.5 mm) of rainfall on average. This precipitation is more frequent in the windward areas of the islands while leeward sides typically receive less rain.
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Climate Stability: Trade winds generally lead to stable weather patterns. They limit extreme temperature fluctuations, which helps maintain a consistent mild climate. Historical data indicates that December is generally one of the wetter months, yet the presence of trade winds moderates the impact of this rainfall.
Overall, the trade winds shape December’s weather in Honolulu by promoting comfortable temperatures, humid conditions, and distinct rainfall patterns, contributing to an enjoyable winter experience for visitors.
What Outdoor Activities Are Best to Enjoy Weather in December in Honolulu?
The best outdoor activities to enjoy the December weather in Honolulu include hiking, beach activities, cultural events, and holiday festivities.
- Hiking
- Beach Activities
- Cultural Events
- Holiday Festivities
These activities provide a range of options to experience the unique charm of Honolulu during December.
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Hiking: Hiking in Honolulu offers breathtaking views and a chance to explore the island’s natural beauty. The trails range from easy walks to challenging hikes. Popular trails include the Diamond Head Summit Trail, which gives panoramic views of the city and coastline. Research by the Hawaii Tourism Authority shows that hiking contributes significantly to local tourism, attracting visitors who seek outdoor adventures.
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Beach Activities: December is a great time for beach activities such as swimming, surfing, and snorkeling. The warm weather and clear waters make beaches like Waikiki and Hanauma Bay popular spots. According to the National Oceanic and Atmospheric Administration (NOAA), average sea temperatures in December are comfortable for swimming, making it ideal for beachgoers.
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Cultural Events: Cultural events in December celebrate Hawaii’s rich heritage. Events such as the Honolulu City Lights showcase local art and holiday decorations. The Hawaii Symphony Orchestra often hosts seasonal performances. These events not only enrich the visitor experience but also support local artists and the economy.
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Holiday Festivities: Holiday festivities in Honolulu include parades, tree lighting ceremonies, and local markets. These activities create a festive atmosphere and allow residents and visitors to enjoy holiday traditions with a Hawaiian twist. The local community often participates in these celebrations, highlighting the importance of cultural connections during the holiday season.
In summary, December in Honolulu offers a variety of outdoor activities that cater to diverse interests while showcasing the island’s natural beauty and cultural vibrancy.
What Should You Pack for Your Trip to Honolulu in December?
To prepare for your trip to Honolulu in December, pack lightweight clothing, swimwear, and sun protection items.
- Lightweight clothing
- Swimwear
- Sun protection
- Footwear
- Light jacket or sweater
- Beach gear
- Casual evening wear
Packing for Honolulu requires careful consideration of the unique weather conditions and activities available during your stay.
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Lightweight Clothing: Lightweight clothing includes breathable fabrics such as cotton and linen. December temperatures in Honolulu typically range from 70°F to 80°F (21°C to 27°C). The warm weather makes lightweight clothes a staple for comfort while exploring the island.
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Swimwear: Swimwear is essential for enjoying the beautiful beaches and ocean activities. December is the start of Hawaii’s winter season, but the ocean remains warm, making it ideal for swimming, snorkeling, and surfing. Families frequently pack multiple swimwear options for a full day of beach fun.
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Sun Protection: Sun protection items like sunscreen, sunglasses, and hats are crucial in Hawaii. The sun can be intense year-round. As the Skin Cancer Foundation reports, using sunscreen with at least SPF 30 is recommended. A wide-brimmed hat and UV-blocking sunglasses can further protect skin and eyes from harmful rays.
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Footwear: Comfortable footwear is important for various activities. Consider sandals for beach trips and hiking shoes for adventure excursions. Local customs may favor casual, easy-to-remove shoes, especially in beach areas, making them a practical choice.
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Light Jacket or Sweater: Although it’s warm during the day, evenings can be cooler, especially near the coast. A light jacket or sweater provides warmth for nighttime activities. Bringing a versatile piece allows for comfort during the transition from day to night.
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Beach Gear: Items like beach towels, reusable water bottles, and snorkeling gear can enhance your beach experience. Many travelers prefer to bring reusable bottles to stay hydrated while exploring. Snorkeling gear rentals are available, but personal gear can ensure better fit and comfort.
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Casual Evening Wear: For dining out or exploring nightlife, pack casual evening wear. Many restaurants and venues in Honolulu have a relaxed dress code. Lightweight dresses or collared shirts can help you blend in comfortably during your evening outings.
By considering these essential items, you’ll be well-prepared for your December trip to Honolulu, ensuring comfort and enjoyment during your Hawaiian vacation.
How Does December Weather in Honolulu Compare to Other Months?
December weather in Honolulu is generally warm with occasional rain. The average temperature ranges from 70°F (21°C) at night to 82°F (28°C) during the day. Compared to other months, December is part of the winter season in Hawaii, leading to increased rainfall. It typically receives about 3.5 inches of rain, making it wetter than months like August and September, which are drier. Humidity levels are higher in December, creating a muggy feel. Despite the rain, sunshine is still prevalent, with an average of 7 hours of sunny weather per day. Overall, December offers warm temperatures and lush landscapes but also brings some rain, differentiating it from the drier months earlier in the year.
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