December weather forecastMāhukona, HI
December
Weather in December
December, the first month of the winter in Māhukona, is still a warm month, with temperature in the range of an average low of 71.1°F (21.7°C) and an average high of 74.8°F (23.8°C).Temperature
The average high-temperature during December is a still moderately hot 74.8°F (23.8°C), almost matching the conditions of the preceding month. In December, Māhukona's nights cool slightly to a consistent average temperature of 71.1°F (21.7°C).Humidity
In Māhukona, the average relative humidity in December is 73%.Rainfall
In Māhukona, Hawaii, during December, the rain falls for 9.4 days and regularly aggregates up to 0.67" (17mm) of precipitation. In Māhukona, during the entire year, the rain falls for 136 days and collects up to 8.5" (216mm) of precipitation.Daylight
With an average of 10h and 54min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 6:42 am and sunset at 5:42 pm. On the last day of December, sunrise is at 6:58 am and sunset at 5:55 pm HST.
Sunshine
December has the least sunshine of the year, with an average of 7.4h of sunshine.UV index
The months with the highest UV index are January through December, with an average maximum UV index of 6. The months with the lowest UV index are January through December, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health risk from unprotected exposure to Sun's UV rays for ordinary individuals.Note: A maximum UV index of 6 in December translates into the following recommendations:
Resist overexposure. Safeguarding from solar damage is indispensable. Limit direct sun exposure and seek shade between 10 a.m. and 4 p.m., the time of the most intense UV radiation, noting that shade structures may not provide total sun protection. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Māhukona, HI
- Average high temperature in December: 74.8°F
The warmest month (with the highest average high temperature) is August (78.4°F).
The month with the lowest average high temperature is February (73.2°F).
- Average low temperature in December: 71.1°F
The months with the highest average low temperature are August, September and October (74.8°F).
The coldest month (with the lowest average low temperature) is March (69.4°F).
Average pressure in December
Māhukona, HI
- Average pressure in December: 29.99"Hg
The month with the highest atmospheric pressure is April (30.04"Hg).
The months with the lowest atmospheric pressure are September and October (29.96"Hg).
Average wind speed in December
Māhukona, HI
- Average wind speed in December: 5.5mph
The windiest month (with the highest average wind speed) is February (6.2mph).
The calmest month (with the lowest average wind speed) is July (5mph).
Average humidity in December
Māhukona, HI
- Average humidity in December: 73%
The months with the highest relative humidity are June, July and August (77%).
The month with the lowest relative humidity is February (71%).
Average rainfall in December
Māhukona, HI
- Average rainfall in December: 0.67"
The wettest month (with the highest rainfall) is February (0.98").
The driest month (with the least rainfall) is January (0.47").
Average rainfall days in December
Māhukona, HI
- Average rainfall days in December: 9.4 days
The month with the highest number of rainy days is May (14.4 days).
The month with the least rainy days is February (8.1 days).
Average daylight in December /
Average sunshine in December
Māhukona, HI
- Average daylight in December: 10h and 54min
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: 7h and 24min
The month with the most sunshine is June (Average sunshine: 11h and 24min).
The month with the least sunshine is December (Average sunshine: 7h and 24min).
Average sunshine days in December
Māhukona, HI
- Average sunshine days in December: 12.3 days
The month with the most sunshine days is January (14.5 days).
The month with the least sunshine days is October (6.8 days).
Average UV index in December
Māhukona, HI
- Average UV index in December: 6
The months with the highest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 6).
The months with the lowest UV index are January, February, March, April, May, June, July, August, September, October, November and December (UV index 6).
Average cloud cover in December
Māhukona, HI
- Average cloud cover in December: 15
The months with the most cloud cover are April, May and June (Cloud cover 21).
The month with the least cloud cover is January (Cloud cover 12).
Average visibility in December
Māhukona, 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).
