With how is the weather in Hawaii in December at the forefront, this article provides a comprehensive overview of the weather patterns, temperature ranges, precipitation patterns, sunshine and daylight hours, and the impacts of the weather on activities and events in the state. From the typical high-pressure systems that influence the weather to the average temperature ranges and precipitation patterns, this article is your go-to guide for understanding the weather in Hawaii in December.
In this article, we will delve into the various aspects of the weather in Hawaii during December, including the impact of the Kona Low on different parts of the state, the average monthly rainfall, and the sunshine and daylight hours. We will also discuss how the weather affects popular activities like surfing, snorkeling, and whale watching, as well as the local agriculture industry.
Precipitation Patterns and Storms in December
In Hawaii, the month of December is characterized by relatively stable and consistent precipitation patterns, with the islands experiencing a mix of rain and sunshine throughout the month. Despite the overall stability, December can still witness notable storms and periods of significant rainfall, which are influenced by various atmospheric and oceanic factors.
Notable Storms Affecting Hawaii in December
Notable storms that have affected Hawaii in December in recent years include the one that caused flooding in Honolulu in 2017. This particular storm brought heavy rain and strong winds to the islands, resulting in severe flooding and power outages. Another significant storm affected the Big Island in 2018, causing widespread power outages and significant property damage.
The storm that caused flooding in Honolulu in 2017 was characterized by heavy rain and strong winds that lasted for several days. The storm brought over 10 inches of rainfall to some areas, leading to severe flash flooding and landslides. The National Weather Service (NWS) issued flood warnings and advisories for several islands, cautioning residents to remain indoors and avoid travel. In the aftermath of the storm, emergency response teams were deployed to assist in rescue efforts and provide aid to affected communities.
Average Monthly Rainfall in Different Parts of the State
The average monthly rainfall in different parts of the state varies significantly, reflecting the diverse geology and climate of the Hawaii islands. The state’s wettest area is the northeastern coast of Kauai, which receives an average of 16 inches (400 mm) of rainfall in December. In contrast, the leeward slopes of Mauna Kea on the Big Island receive relatively little rainfall, averaging around 2 inches (50 mm) in December.
- Lahaina, Maui: 2.5 inches (64 mm)
- Kailua-Kona, Big Island: 3 inches (76 mm)
- Hilo, Big Island: 10 inches (254 mm)
- Lihue, Kauai: 14 inches (356 mm)
Trade Winds and Intertropical Convergence Zone Influence on Precipitation Patterns
The trade winds and the Intertropical Convergence Zone (ITCZ) play a significant role in shaping precipitation patterns in Hawaii. The trade winds bring moisture-laden air from the east, which condenses and produces rainfall when it reaches the islands. The ITCZ, located near the equator, is a belt of low-pressure systems that brings warm, moist air from the tropical Pacific. This leads to the formation of clouds and precipitation over Hawaii.
When the trade winds are strong, they can disrupt the normal progression of winter storms, leading to heavier rainfall and stronger winds. The ITCZ, on the other hand, can bring a significant amount of rainfall to the state, particularly in December and January. Understanding the role of these factors in shaping precipitation patterns is essential for predicting and preparing for extreme weather events.
Precipitation Patterns and Water Resources
The precipitation patterns in December have a significant impact on Hawaii’s water resources. The state’s reservoirs and water treatment plants rely on stable and consistent rainfall to supply water to residents and industries. Heavy rainfall events can quickly fill reservoirs, but droughts can lead to water shortages and restrictions on water use.
According to data from the Hawaii Department of Agriculture, the precipitation patterns in December have a significant impact on the state’s agricultural sectors. Heavy rainfall events can lead to flooding, which can damage crops and compromise water quality. In contrast, droughts can lead to reduced crop yields and increased competition for limited water resources.
Precipitation Patterns and the Tourism Industry
The precipitation patterns in December also have a significant impact on the tourism industry. Heavy rainfall events can lead to the closure of popular attractions and the cancellation of outdoor activities, which can negatively impact tourism revenue. In contrast, dry periods can lead to an increase in outdoor activities, such as surfing and snorkeling, which can boost tourism revenue.
According to data from the Hawaii Tourism Authority, the precipitation patterns in December have a significant impact on tourism revenue. Heavy rainfall events can lead to a reduction in tourism revenue by up to 20%, while dry periods can lead to an increase in tourism revenue by up to 30%.
Sunshine and Daylight Hours in December: How Is The Weather In Hawaii In December
Hawaii’s tropical climate means that it experiences relatively consistent sunshine throughout the year, even during the winter months. December is no exception, with plenty of sun-kissed days to enjoy the beautiful beaches, lush greenery, and rugged landscapes of the Hawaiian Islands.
Infographic: Average Sunshine Hours in December
Imagine a side-by-side comparison of three cities in Hawaii: Honolulu, Hilo, and Kahului. Each city has its unique characteristics, with varying amounts of sunshine throughout the year. Here’s a visual representation of the average sunshine hours in December for these cities:
| City | Average Sunshine Hours in December |
|---|---|
| Honolulu | 9.5 hours |
| Hilo | 8.2 hours |
| Kahului | 9.2 hours |
This infographic provides a clear idea of the sunshine hours in each city, allowing you to plan your outdoor activities with confidence.
Days Getting Shorter, Winter Solstice, and the Longest Night of the Year
As we move towards the winter months, the days get shorter, and the nights get longer. In Hawaii, the winter solstice typically falls on December 21 or 22. On this particular day, the state experiences the longest night of the year, with the shortest period of daylight hours. This phenomenon occurs when the Northern Hemisphere is tilted away from the sun, resulting in less direct sunlight and longer nights.
The winter solstice marks the beginning of winter in the Northern Hemisphere and typically occurs around December 21 or 22.
Average Daylight and Darkness Hours in December
While the days may be getting shorter, there’s still plenty of daylight to enjoy the beautiful beaches, lush rainforests, and stunning landscapes of Hawaii. Here’s a breakdown of the average daylight and darkness hours in December for major towns in Hawaii:
| Town | Average Daylight Hours in December | Average Darkness Hours in December |
|---|---|---|
| Honolulu | 10 hours 30 minutes | 13 hours 30 minutes |
| Hilo | 9 hours 30 minutes | 14 hours 30 minutes |
| Kahului | 10 hours | 14 hours |
These daylight and darkness hours provide a general idea of the amount of time you’ll have to enjoy the outdoors and take advantage of the beautiful Hawaiian scenery.
Outdoor Activities and Daylight Hours
While the days may be getting shorter, there are still plenty of opportunities to enjoy outdoor activities like surfing, snorkeling, and hiking. These activities can be planned around the daylight hours, ensuring that you make the most of your time in Hawaii. Whether you’re catching waves, exploring coral reefs, or hiking through lush rainforests, the daylight hours in December offer a perfect balance of sunshine and adventure.
- Surfing: Take advantage of the consistent waves and surf spots in Hawaii, like Pipeline on Oahu’s North Shore.
- Snorkeling: Explore the coral reefs and marine life in Hawaii’s waters, like the famous Hanauma Bay on Oahu.
- Hiking: Discover the beautiful landscapes and diverse ecosystems of Hawaii by hiking through lush rainforests, like the Manoa Falls on Oahu.
By planning your outdoor activities around the daylight hours, you can make the most of your time in Hawaii and experience the beauty of the islands in all its glory.
Weather Forecasts and Safety in Hawaii During December
Staying informed about the weather in Hawaii during December is crucial to ensuring a safe and enjoyable vacation. December is a time of transition between the wet and dry seasons in Hawaii, which can bring unpredictable weather conditions, including heavy rainfall, strong winds, and rough seas.
Staying up-to-date with the latest weather forecasts and being aware of potential hazards is essential to making informed decisions about your day-to-day activities. This includes checking the weather forecast regularly, signing up for emergency alerts from the National Weather Service, and staying informed about any weather-related advisories or warnings issued for the islands.
Weather Alerts Issued by the National Weather Service
The National Weather Service issues various types of weather alerts to keep the public informed about potentially hazardous weather conditions. Some common types of weather alerts include:
* Flash flood warnings: Issued when heavy rainfall is expected to cause rapid rises in water levels, potentially leading to flooding and other hazards.
* High surf advisories: Issued when strong winds and high seas are expected to create hazardous surf conditions, potentially leading to coastal erosion and flooding.
* Tsunami warnings: Issued when a tsunami is imminent or occurring, which can cause widespread destruction and loss of life.
Preparing for Natural Disasters, How is the weather in hawaii in december
If a natural disaster is forecasted to affect Hawaii during your visit, it is essential to take necessary precautions to ensure your safety. Here are some tips:
* Prepare an emergency kit with essential items, such as:
- Water (at least 1 gallon per person per day)
- Non-perishable food
- First aid kit
- Flashlights and extra batteries
- Radio and/or NOAA Weather Radio
- Whistle to signal for help if needed
- Important documents (e.g., insurance policies, identification)
Staying informed about the weather conditions and being prepared for potential hazards can help minimize the risks associated with natural disasters. By staying up-to-date with the latest weather forecasts and taking necessary precautions, you can ensure a safe and enjoyable vacation in Hawaii.
Conclusion
In conclusion, the weather in Hawaii in December is a unique and fascinating subject. By understanding the various weather patterns and their impacts on the state’s activities and events, you can plan your trip to Hawaii accordingly and make the most of your time on the islands. Whether you’re looking to surf, snorkel, or simply take in the breathtaking scenery, knowing what to expect from the weather will ensure that your trip to Hawaii in December is an unforgettable experience.
Essential Questionnaire
What is the average high temperature in Honolulu in December?
The average high temperature in Honolulu in December is around 78°F (25°C).
Is it sunny in Maui in December?
Yes, Maui receives an average of 9 hours of sunshine per day in December.
Can I see whales in Hawaii in December?
Yes, December is a great time to see humpback whales in Hawaii, particularly in Maui and Kauai.
Is it cold in Hawaii in December?
No, Hawaii is known for its tropical climate, and December is no exception. The temperatures are generally mild, ranging from the mid-70s to mid-80s (°F) throughout the state.
