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
December ushers in an average high-temperature of a still moderately hot 75.4°F (24.1°C), aligning closely with the preceding month. During the month of December, Kalihiwai's average nighttime temperature closely mirrors its daytime counterpart, at a pleasant 71.8°F (22.1°C).Humidity
June through August, October and December, with an average relative humidity of 77%, are the most humid months.Rainfall
In December, the rain falls for 18.1 days. Throughout December, 2.2" (56mm) of precipitation is accumulated. Throughout the year, there are 218.4 rainfall days, and 22.13" (562mm) of precipitation is accumulated.Daylight
With an average of 10h and 48min of daylight, December has the shortest days of the year in Kalihiwai.On the first day of December, sunrise is at 7:01 am and sunset at 5:53 pm. On the last day of the month, sunrise is at 7:17 am and sunset at 6:05 pm HST.
Sunshine
In December, the average sunshine is 6.4h.UV index
January through August, October through December, with an average maximum UV index of 6, are months with the lowest UV index. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to UV radiation for ordinary individuals.Note: In December, the maximum UV index of 6 transforms into these recommendations:
Ward off overexposure. Defence against solar harm is crucial. Avoid direct Sun exposure and seek shade between 10 a.m. and 4 p.m., when UV radiation is at its peak, but keep in mind that not all shade structures provide complete protection. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are December temperatures?
What are the most humid months?
What is the average humidity in December?
How much does it rain in December?
What is the month with the shortest days?
How many hours of daylight does Kalihiwai have in December?
What time are sunrise and sunset in December?
How many hours of sunshine does Kalihiwai have in December?
What are the months with the lowest UV index?
How high is the UV index in December?
Average temperature in December
Kalihiwai, HI
- Average high temperature in December: 75.4°F
The warmest month (with the highest average high temperature) is September (79.7°F).
The months with the lowest average high temperature are February and March (73.2°F).
- Average low temperature in December: 71.8°F
The month with the highest average low temperature is September (75.9°F).
The coldest month (with the lowest average low temperature) is February (68.5°F).
Average pressure in December
Kalihiwai, HI
- Average pressure in December: 30.01"Hg
The month with the highest atmospheric pressure is April (30.07"Hg).
The months with the lowest atmospheric pressure are September and October (29.98"Hg).
Average wind speed in December
Kalihiwai, HI
- Average wind speed in December: 11.2mph
The windiest month (with the highest average wind speed) is July (12.3mph).
The calmest month (with the lowest average wind speed) is January (10mph).
Average humidity in December
Kalihiwai, HI
- Average humidity in December: 77%
The months with the highest relative humidity are June, July, August, October and December (77%).
The month with the lowest relative humidity is January (75%).
Average rainfall in December
Kalihiwai, HI
- Average rainfall in December: 2.2"
The wettest month (with the highest rainfall) is March (2.52").
The driest month (with the least rainfall) is April (1.3").
Average rainfall days in December
Kalihiwai, HI
- Average rainfall days in December: 18.1 days
The month with the highest number of rainy days is August (21.1 days).
The month with the least rainy days is January (12.5 days).
Average daylight in December /
Average sunshine in December
Kalihiwai, HI
- Average daylight in December: 10h and 5min
The month with the longest days is June (Average daylight: 13h and 30min).
The month with the shortest days is December (Average daylight: 10h and 48min).
- Average sunshine in December: 6h and 2min
The month with the most sunshine is June (Average sunshine: 9h and 42min).
The month with the least sunshine is November (Average sunshine: 6h and 12min).
Average sunshine days in December
Kalihiwai, HI
- Average sunshine days in December: 6.7 days
The month with the most sunshine days is January (12.8 days).
The month with the least sunshine days is August (2.9 days).
Average UV index in December
Kalihiwai, 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
Kalihiwai, HI
- Average cloud cover in December: 42
The month with the most cloud cover is March (Cloud cover 47).
The months with the least cloud cover are January and September (Cloud cover 38).
Average visibility in December
Kalihiwai, 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).
Kalihiwai, Hawaii, USA
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