December weather forecastPuunene, HI
December
Weather in December
December brings coolness to the air in Puunene, symbolic of the winter season. While the temperature drops compared to the preceding months, the weather remains comfortable rather than piercingly cold. Rainfall marginally increases to 1.18" (30mm), marking a relatively wet end to the year. Sunshine hours and daylight marginally drop, hinting at shorter days and longer nights. As the year turns, the modest fluctuation in weather parameters from December to January refreshes the yearly climate cycle.Temperature
Puunene records an average high-temperature of a still warm 75.4°F (24.1°C) in December, maintaining a close correlation with November's 77.4°F (25.2°C). An average low-temperature of 72.3°F (22.4°C), slightly less than the daytime peak, marks the month of December.Humidity
In December, the average relative humidity is 76%.Rainfall
In Puunene, in December, during 13.5 rainfall days, 1.18" (30mm) of precipitation is typically accumulated. In Puunene, during the entire year, the rain falls for 129.8 days and collects up to 9.37" (238mm) of precipitation.Snowfall
January through August, October through December are months without snowfall.Daylight
With an average of 10h and 54min of daylight, December has the shortest days of the year.On the first day of December, sunrise is at 6:46 am and sunset at 5:43 pm. On the last day of the month, sunrise is at 7:02 am and sunset at 5:56 pm HST.
Sunshine
December has the least sunshine of the year, with an average of 6.8h of sunshine.UV index
The months with the lowest UV index are January through 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 rays for ordinary individuals.Note: A maximum UV index of 6 in December translates into the following recommendations:
Shield from overexposure. Defense against sun-related harm is required. Attempt to stay under shade and limit exposure to the Sun between 10 a.m. and 4 p.m., when UV radiation is at its peak. Remember, devices such as parasols or canopies might not provide complete sun protection. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Puunene, HI
- Average high temperature in December: 75.4°F
The warmest month (with the highest average high temperature) is September (79.5°F).
The month with the lowest average high temperature is March (73.8°F).
- Average low temperature in December: 72.3°F
The month with the highest average low temperature is September (75.9°F).
The coldest month (with the lowest average low temperature) is March (70.2°F).
Average pressure in December
Puunene, 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
Puunene, HI
- Average wind speed in December: 12mph
The windiest month (with the highest average wind speed) is June (14mph).
The calmest month (with the lowest average wind speed) is January (10.6mph).
Average humidity in December
Puunene, HI
- Average humidity in December: 76%
The months with the highest relative humidity are July and August (77%).
The months with the lowest relative humidity are January, February and March (75%).
Average rainfall in December
Puunene, HI
- Average rainfall in December: 1.18"
The wettest month (with the highest rainfall) is February (1.26").
The driest month (with the least rainfall) is June (0.28").
Average rainfall days in December
Puunene, HI
- Average rainfall days in December: 13.5 days
The month with the highest number of rainy days is March (15.6 days).
The months with the least rainy days are June, August and September (7.7 days).
Average snowfall days in December
Puunene, HI
- Average snowfall days in December: 0 days
The month with the highest number of snowfall days is September (0.1 days).
The months with the least snowfall days are January, February, March, April, May, June, July, August, October, November and December (0 days).
Average daylight in December /
Average sunshine in December
Puunene, HI
- Average daylight in December: 10h and 54min
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 48min
The month with the most sunshine is June (Average sunshine: 11h and 24min).
The month with the least sunshine is December (Average sunshine: 6h and 48min).
Average sunshine days in December
Puunene, HI
- Average sunshine days in December: 10.8 days
The month with the most sunshine days is July (17.1 days).
The month with the least sunshine days is November (8.9 days).
Average UV index in December
Puunene, HI
- Average UV index in December: 6
The month with the highest UV index is September (UV index 7).
The months with the lowest UV index are January, February, March, April, May, June, July, August, October, November and December (UV index 6).
Average cloud cover in December
Puunene, HI
- Average cloud cover in December: 28
The month with the most cloud cover is March (Cloud cover 33).
The month with the least cloud cover is September (Cloud cover 23).
Average visibility in December
Puunene, 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).
