December weather forecastEwa Gentry, HI
December
Weather in December
December wraps up the year with a distinctive shift towards cooler weather conditions in Ewa Gentry. Rainfall climbs up to 1.38" (35mm), distributed over 14.5 days. The combination of shorter daylight hours along with a consistently reflective cloud percentage introduces a somewhat cooler climate. Though the wind speeds maintain a moderate level, there are no reports of harsh winds affecting the weather. The month unfolds with an overall festive ambiance, complemented by the comfortable weather conditions.Temperature
As Ewa Gentry welcomes December, the average high-temperature is noted at a still warm 76.6°F (24.8°C), closely aligning with the preceding month. Ewa Gentry's nocturnal average in December closely mirrors its daytime temperatures, settling at a pleasant 71.8°F (22.1°C).Humidity
December is the most humid month in Ewa Gentry, with an average relative humidity of 76%.Rainfall
In Ewa Gentry, in December, it is raining for 14.5 days, with typically 1.38" (35mm) of accumulated precipitation. In Ewa Gentry, Hawaii, during the entire year, the rain falls for 172.2 days and collects up to 12.72" (323mm) 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 the month, sunrise is at 6:53 am and sunset at 5:49 pm. On the last day of December, in Ewa Gentry, sunrise is at 7:09 am and sunset at 6:01 pm HST.
Sunshine
In December, the average sunshine is 6.8h.UV index
The months with the lowest UV index in Ewa Gentry, Hawaii, are January through May, October through December, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.Note: In December, a regular UV index of 6 translates into these guidelines:
Eschew overexposure. Those with light skin may suffer burns in fewer than 20 minutes. Stay in the shade and limit sun exposure from 10 a.m. to 4 p.m., when UV radiation is most potent. Keep in mind that shade structures like parasols or canopies do not offer full protection. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Ewa Gentry, HI
- Average high temperature in December: 76.6°F
The warmest months (with the highest average high temperature) are August and September (81.5°F).
The month with the lowest average high temperature is February (74.8°F).
- Average low temperature in December: 71.8°F
The months with the highest average low temperature are August and September (76.3°F).
The coldest month (with the lowest average low temperature) is February (69.4°F).
Average pressure in December
Ewa Gentry, HI
- Average pressure in December: 29.99"Hg
The months with the highest atmospheric pressure are March and April (30.05"Hg).
The months with the lowest atmospheric pressure are September and October (29.97"Hg).
Average wind speed in December
Ewa Gentry, HI
- Average wind speed in December: 10mph
The windiest month (with the highest average wind speed) is July (11.9mph).
The calmest months (with the lowest average wind speed) are January and October (9.1mph).
Average humidity in December
Ewa Gentry, HI
- Average humidity in December: 76%
The month with the highest relative humidity is December (76%).
The months with the lowest relative humidity are January, April, May, June, August, September, October and November (74%).
Average rainfall in December
Ewa Gentry, HI
- Average rainfall in December: 1.38"
The wettest month (with the highest rainfall) is March (1.77").
The driest month (with the least rainfall) is July (0.43").
Average rainfall days in December
Ewa Gentry, HI
- Average rainfall days in December: 14.5 days
The month with the highest number of rainy days is March (18.1 days).
The month with the least rainy days is July (11.3 days).
Average daylight in December /
Average sunshine in December
Ewa Gentry, 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 0min).
The month with the least sunshine is November (Average sunshine: 6h and 42min).
Average sunshine days in December
Ewa Gentry, HI
- Average sunshine days in December: 10.5 days
The months with the most sunshine days are July and August (15.3 days).
The month with the least sunshine days is March (6.8 days).
Average UV index in December
Ewa Gentry, HI
- Average UV index in December: 6
The months with the highest UV index are June, July, August and September (UV index 7).
The months with the lowest UV index are January, February, March, April, May, October, November and December (UV index 6).
Average cloud cover in December
Ewa Gentry, HI
- Average cloud cover in December: 33
The month with the most cloud cover is March (Cloud cover 37).
The month with the least cloud cover is September (Cloud cover 30).
Average visibility in December
Ewa Gentry, 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).
