Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average sea temperature in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
Hanapepe indicates an average high-temperature of a still warm 75.7°F (24.3°C) in December, showing minor variation from November's 77.9°F (25.5°C). Hanapepe registers an average low-temperature of 72.1°F (22.3°C) throughout December, a modest decrease from its daytime highs.Humidity
February through April, June through August, October and December, with an average relative humidity of 75%, are the most humid months.Rainfall
In Hanapepe, during December, the rain falls for 14.6 days and regularly aggregates up to 1.57" (40mm) of precipitation. In Hanapepe, during the entire year, the rain falls for 172.7 days and collects up to 15.75" (400mm) of precipitation.Ocean temperature
In December, the average ocean temperature is 76.8°F (24.9°C).Note: For individuals prone to feeling cold, swimming in 73.4°F (23°C) is still regarded as intolerable. A wetsuit is not a necessity, but sunshine, wind, and air temperature are essential factors for relishing swimming at 76.8°F (24.9°C).
Daylight
With an average of 10h and 48min of daylight, December has the shortest days of the year.On the first day of December, sunrise is at 7:01 am and sunset at 5:54 pm. On the last day of the month, sunrise is at 7:17 am and sunset at 6:06 pm HST.
Sunshine
In December, the average sunshine is 7.5h.UV index
January through June, October through December, with an average maximum UV index of 6, are months with the lowest UV index. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV rays for the ordinary person.Note: In December, a daily UV index of 6 turns into the following recommendations:
Persist with precautions and heed sun safety advice. Prevention of sunburn is compulsory. The Sun emits the most powerful UV radiation between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes. Take note! The UV strength of the Sun elevates when reflected off water and sand.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in December?
What are the most humid months?
What is the average humidity in December?
How many days does it rain in December?
What is the water temperature in December?
What is the month with the shortest days?
How many hours of daylight does Hanapepe have in December?
What time are sunrise and sunset in December?
How long on average sun shines in December?
What is the month with the lowest UV index?
How high is the UV index in December?
Average temperature in December
Hanapepe, HI
- Average high temperature in December: 75.7°F
The warmest month (with the highest average high temperature) is August (80.8°F).
The months with the lowest average high temperature are February and March (73.4°F).
- Average low temperature in December: 72.1°F
The month with the highest average low temperature is September (76.3°F).
The coldest month (with the lowest average low temperature) is February (69.1°F).
Average pressure in December
Hanapepe, HI
- Average pressure in December: 30.01"Hg
The months with the highest atmospheric pressure are March and April (30.06"Hg).
The months with the lowest atmospheric pressure are September and October (29.98"Hg).
Average wind speed in December
Hanapepe, HI
- Average wind speed in December: 9.8mph
The windiest month (with the highest average wind speed) is March (10.7mph).
The calmest month (with the lowest average wind speed) is May (8.6mph).
Average humidity in December
Hanapepe, HI
- Average humidity in December: 75%
The months with the highest relative humidity are February, March, April, June, July, August, October and December (75%).
The months with the lowest relative humidity are January, May, September and November (74%).
Average rainfall in December
Hanapepe, HI
- Average rainfall in December: 1.57"
The wettest month (with the highest rainfall) is March (2.2").
The driest month (with the least rainfall) is July (0.63").
Average rainfall days in December
Hanapepe, HI
- Average rainfall days in December: 14.6 days
The month with the highest number of rainy days is March (16.8 days).
The month with the least rainy days is January (11.5 days).
Average sea temperature in December
Hanapepe, HI
- Average sea temperature in December: 76.8°F
The best month for swimming (with the highest average sea temperature) is September (80.5°F).
The coldest month (with the lowest average sea temperature) is March (75.4°F).
Average daylight in December /
Average sunshine in December
Hanapepe, HI
- Average daylight in December: 10h and 5min
The month with the longest days is June (Average daylight: 13h and 30min).
The month with the shortest days is December (Average daylight: 10h and 48min).
- Average sunshine in December: 7h and 3min
The month with the most sunshine is June (Average sunshine: 11h and 0min).
The month with the least sunshine is November (Average sunshine: 7h and 6min).
Average sunshine days in December
Hanapepe, HI
- Average sunshine days in December: 9.5 days
The month with the most sunshine days is January (13.8 days).
The month with the least sunshine days is November (6.7 days).
Average UV index in December
Hanapepe, HI
- Average UV index in December: 6
The months with the highest UV index are July, August and September (UV index 7).
The months with the lowest UV index are January, February, March, April, May, June, October, November and December (UV index 6).
Average cloud cover in December
Hanapepe, HI
- Average cloud cover in December: 31
The month with the most cloud cover is March (Cloud cover 35).
The months with the least cloud cover are January and September (Cloud cover 28).
Average visibility in December
Hanapepe, HI
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Hanapepe, Hawaii, USA
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