December weather forecastMokuleia, HI
December
Weather in December
December, the first month of the winter in Mokuleia, is still a warm month, with an average temperature fluctuating between 71.2°F (21.8°C) and 76.6°F (24.8°C).Temperature
December's arrival brings an average high-temperature of a still warm 76.6°F (24.8°C), slightly deviating from November's 78.8°F (26°C). Mokuleia's nighttime temperatures in December see a subtle dip to an average of 71.2°F (21.8°C).Humidity
The months with the highest humidity are February and December, with an average relative humidity of 76%.Rainfall
In Mokuleia, in December, it is raining for 14.5 days, with typically 1.06" (27mm) of accumulated precipitation. Throughout the year, there are 190.2 rainfall days, and 11.65" (296mm) of precipitation is accumulated.Daylight
December has the shortest days of the year in Mokuleia, with an average of 10h and 48min of daylight.On the first day of the month, sunrise is at 6:54 am and sunset at 5:49 pm. On the last day of December, sunrise is at 7:10 am and sunset at 6:01 pm HST.
Sunshine
The average sunshine in December is 6.3h.UV index
The months with the lowest UV index are January through June, August, October through December, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV radiation for ordinary individuals.Note: The maximum UV index, 6 during December, leads to the following recommendations:
Persist with safeguards and heed sun safety doctrines. Keeping sunburn at bay is of prime importance. Be aware that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. and try to reduce direct sun exposure during this period as much as possible. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Mokuleia, HI
- Average high temperature in December: 76.6°F
The warmest month (with the highest average high temperature) is September (81.7°F).
The month with the lowest average high temperature is February (75°F).
- Average low temperature in December: 71.2°F
The months with the highest average low temperature are August and September (75.7°F).
The coldest month (with the lowest average low temperature) is February (68.5°F).
Average pressure in December
Mokuleia, HI
- Average pressure in December: 30"Hg
The month with the highest atmospheric pressure is April (30.06"Hg).
The month with the lowest atmospheric pressure is October (29.97"Hg).
Average wind speed in December
Mokuleia, HI
- Average wind speed in December: 9.7mph
The windiest month (with the highest average wind speed) is July (11.6mph).
The calmest month (with the lowest average wind speed) is January (9mph).
Average humidity in December
Mokuleia, HI
- Average humidity in December: 76%
The months with the highest relative humidity are February and December (76%).
The months with the lowest relative humidity are May and September (74%).
Average rainfall in December
Mokuleia, HI
- Average rainfall in December: 1.06"
The wettest months (with the highest rainfall) are February and October (1.34").
The driest month (with the least rainfall) is July (0.63").
Average rainfall days in December
Mokuleia, HI
- Average rainfall days in December: 14.5 days
The month with the highest number of rainy days is March (17.7 days).
The month with the least rainy days is January (12.5 days).
Average daylight in December /
Average sunshine in December
Mokuleia, HI
- Average daylight in December: 10h and 48min
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 48min).
- Average sunshine in December: 6h and 18min
The month with the most sunshine is June (Average sunshine: 9h and 54min).
The month with the least sunshine is November (Average sunshine: 6h and 12min).
Average sunshine days in December
Mokuleia, HI
- Average sunshine days in December: 10.4 days
The month with the most sunshine days is January (12.9 days).
The month with the least sunshine days is September (6.5 days).
Average UV index in December
Mokuleia, HI
- Average UV index in December: 6
The months with the highest UV index are July and September (UV index 7).
The months with the lowest UV index are January, February, March, April, May, June, August, October, November and December (UV index 6).
Average cloud cover in December
Mokuleia, HI
- Average cloud cover in December: 40
The month with the most cloud cover is March (Cloud cover 44).
The months with the least cloud cover are January and September (Cloud cover 37).
Average visibility in December
Mokuleia, 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).
