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
With the start of December, Hawi measures an average high-temperature of a still refreshing 63°F (17.2°C), not significantly differing from November's 63.5°F (17.5°C). Hawi marks an average drop to a fresh 54.3°F (12.4°C) during nighttime in December, following the high of the day.Humidity
In December, the average relative humidity is 81%.Rainfall
In Hawi, Hawaii, in December, during 20.7 rainfall days, 3.27" (83mm) of precipitation is typically accumulated. In Hawi, during the entire year, the rain falls for 280.8 days and collects up to 33.9" (861mm) of precipitation.Daylight
The month with the shortest days is December, with an average of 10h and 54min of daylight.On the first day of December in Hawi, sunrise is at 6:42 am and sunset at 5:42 pm. On the last day of the month, sunrise is at 6:58 am and sunset at 5:54 pm HST.
Sunshine
December has the least sunshine of the year, with an average of 6.5h of sunshine.UV index
The months with the lowest UV index are January through April, November and December, with an average maximum UV index of 4. A UV Index reading of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for the average person.Note: In December, the average maximum UV index of 4 translates into the following recommendations:
Preventative actions are necessary - Recommendations to ward off sunburn are given. Minimize direct exposure to the Sun during midday when its radiation is at its peak. Stay sun-safe with clothing that is both closely woven and worn loosely.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are December temperatures?
What is the average humidity in December in Hawi?
How much does it rain in December?
What is the month with the shortest days?
How many hours of daylight does Hawi 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 in Hawi?
What are the months with the lowest UV index?
What is the UV index reading in December?
Average temperature in December
Hawi, HI
- Average high temperature in December: 63°F
The warmest month (with the highest average high temperature) is August (67.5°F).
The month with the lowest average high temperature is March (61.9°F).
- Average low temperature in December: 54.3°F
The month with the highest average low temperature is September (59°F).
The coldest month (with the lowest average low temperature) is February (52°F).
Average pressure in December
Hawi, HI
- Average pressure in December: 29.99"Hg
The month with the highest atmospheric pressure is April (30.05"Hg).
The months with the lowest atmospheric pressure are September and October (29.97"Hg).
Average wind speed in December
Hawi, HI
- Average wind speed in December: 5mph
The windiest months (with the highest average wind speed) are July and August (5.5mph).
The calmest months (with the lowest average wind speed) are January, May and October (4.5mph).
Average humidity in December
Hawi, HI
- Average humidity in December: 81%
The months with the highest relative humidity are September and October (84%).
The month with the lowest relative humidity is February (78%).
Average rainfall in December
Hawi, HI
- Average rainfall in December: 3.27"
The wettest month (with the highest rainfall) is August (4.13").
The driest month (with the least rainfall) is June (1.57").
Average rainfall days in December
Hawi, HI
- Average rainfall days in December: 20.7 days
The month with the highest number of rainy days is September (27.3 days).
The month with the least rainy days is January (17.1 days).
Average daylight in December /
Average sunshine in December
Hawi, HI
- Average daylight in December: 10h and 5min
The month with the longest days is June (Average daylight: 13h and 18min).
The month with the shortest days is December (Average daylight: 10h and 54min).
- Average sunshine in December: 6h and 3min
The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is December (Average sunshine: 6h and 30min).
Average sunshine days in December
Hawi, HI
- Average sunshine days in December: 7.4 days
The month with the most sunshine days is January (9.7 days).
The month with the least sunshine days is September (0.8 days).
Average UV index in December
Hawi, HI
- Average UV index in December: 4
The months with the highest UV index are May, June, July, August, September and October (UV index 5).
The months with the lowest UV index are January, February, March, April, November and December (UV index 4).
Average cloud cover in December
Hawi, HI
- Average cloud cover in December: 36
The months with the most cloud cover are April and September (Cloud cover 43).
The month with the least cloud cover is January (Cloud cover 29).
Average visibility in December
Hawi, 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).
Hawi, Hawaii, USA
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