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 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
December's advent denotes a minor fluctuation in the average high-temperature to a still moderately hot 75.9°F (24.4°C) from November's 78.1°F (25.6°C). During the nights of December, Maunawili records an average temperature of 73.2°F (22.9°C), a minor drop from daytime peaks.Humidity
The months with the highest humidity are April, June through August and December, with an average relative humidity of 76%.Rainfall
In Maunawili, during December, the rain falls for 14.9 days and regularly aggregates up to 1.57" (40mm) of precipitation. In Maunawili, during the entire year, the rain falls for 169.9 days and collects up to 13.15" (334mm) of precipitation.Daylight
December has the shortest days of the year in Maunawili, with an average of 10h and 54min of daylight.On the first day of the month, sunrise is at 6:52 am and sunset at 5:48 pm. On the last day of December, sunrise is at 7:08 am and sunset at 6:00 pm HST.
Sunshine
With an average of 6.6h of sunshine, December has the least sunshine of the year.UV index
The months with the lowest UV index are January through June, November and December, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health hazard from exposure to the Sun's UV rays for ordinary individuals.Note: The maximum UV index of 6 during December leads to these instructions:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. Stay in the shade and limit direct sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its strongest. Remember, however, that not all shade structures provide full sun protection. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in December?
What are the most humid months?
What is the average humidity in December?
How much does it rain in December?
What is the month with the shortest days?
How many hours of daylight does Maunawili have in December?
What time are sunrise and sunset in December?
What is the month with the least sunshine?
How long on average sun shines in December?
When is the lowest UV index?
What is the UV index intensity in December?
Average temperature in December
Maunawili, HI
- Average high temperature in December: 75.9°F
The warmest month (with the highest average high temperature) is September (80.6°F).
The month with the lowest average high temperature is February (74.5°F).
- Average low temperature in December: 73.2°F
The months with the highest average low temperature are September and October (77°F).
The coldest month (with the lowest average low temperature) is February (70.5°F).
Average pressure in December
Maunawili, HI
- Average pressure in December: 30"Hg
The month with the highest atmospheric pressure is April (30.06"Hg).
The months with the lowest atmospheric pressure are September and October (29.97"Hg).
Average wind speed in December
Maunawili, HI
- Average wind speed in December: 12mph
The windiest month (with the highest average wind speed) is July (14.1mph).
The calmest month (with the lowest average wind speed) is January (10.7mph).
Average humidity in December
Maunawili, HI
- Average humidity in December: 76%
The months with the highest relative humidity are April, June, July, August and December (76%).
The months with the lowest relative humidity are January and November (74%).
Average rainfall in December
Maunawili, HI
- Average rainfall in December: 1.57"
The wettest month (with the highest rainfall) is March (1.69").
The driest month (with the least rainfall) is July (0.55").
Average rainfall days in December
Maunawili, HI
- Average rainfall days in December: 14.9 days
The month with the highest number of rainy days is March (16.9 days).
The month with the least rainy days is June (11.3 days).
Average daylight in December /
Average sunshine in December
Maunawili, HI
- Average daylight in December: 10h and 5min
The month with the longest days is June (Average daylight: 13h and 24min).
The month with the shortest days is December (Average daylight: 10h and 54min).
- Average sunshine in December: 6h and 4min
The month with the most sunshine is June (Average sunshine: 11h and 12min).
The month with the least sunshine is December (Average sunshine: 6h and 36min).
Average sunshine days in December
Maunawili, HI
- Average sunshine days in December: 8.1 days
The month with the most sunshine days is June (13.6 days).
The months with the least sunshine days are March and November (6.6 days).
Average UV index in December
Maunawili, HI
- Average UV index in December: 6
The months with the highest UV index are July, August, September and October (UV index 7).
The months with the lowest UV index are January, February, March, April, May, June, November and December (UV index 6).
Average cloud cover in December
Maunawili, HI
- Average cloud cover in December: 32
The month with the most cloud cover is March (Cloud cover 36).
The month with the least cloud cover is September (Cloud cover 27).
Average visibility in December
Maunawili, 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).
Maunawili, Hawaii, USA
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