Contents
- Weather in January
- Frequently asked questions
- Average temperature in January
- Average pressure in January
- Average wind speed in January
- Average humidity in January
- Average rainfall in January
- Average rainfall days in January
- Average daylight in January
- Average sunshine in January
- Average sunshine days in January
- Average UV index in January
- Average cloud cover in January
- Average visibility in January
Weather in January
Temperature
January brings an average high-temperature of a still warm 75.9°F (24.4°C), showing a slight difference from December's 76.5°F (24.7°C). Wahiawa encounters an average temperature dip to a comfortable 67.6°F (19.8°C) throughout January, subtly lower than its daytime maximum.Humidity
In January, the average relative humidity in Wahiawa is 76%.Rainfall
In January, the rain falls for 16 days. Throughout January, 1.34" (34mm) of precipitation is accumulated. In Wahiawa, during the entire year, the rain falls for 252.2 days and collects up to 22.09" (561mm) of precipitation.Daylight
The average length of the day in January is 11h and 0min.On the first day of January, sunrise is at 7:10 am and sunset at 6:01 pm. On the last day of the month, sunrise is at 7:09 am and sunset at 6:21 pm HST.
Sunshine
In Wahiawa, Hawaii, the average sunshine in January is 7.4h.UV index
January, February and December, with an average maximum UV index of 5, are months with the lowest UV index. A UV Index of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.Note: In January, the maximum UV index of 5 suggests this advice:
Undertake protective steps - Obligation to safeguard skin and eyes from harm is in place. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in January?
What is the average humidity in January?
How much does it rain in January?
What is the average length of the day in January?
When is the sunrise / sunset in January in Wahiawa?
How many hours of sunshine does Wahiawa have in January?
When is the lowest UV index?
How high is the UV index in January?
Average temperature in January
Wahiawa, HI
- Average high temperature in January: 75.9°F
The warmest month (with the highest average high temperature) is August (82.6°F).
The month with the lowest average high temperature is February (75.6°F).
- Average low temperature in January: 67.6°F
The month with the highest average low temperature is September (74.3°F).
The coldest month (with the lowest average low temperature) is February (66.7°F).
Average pressure in January
Wahiawa, HI
- Average pressure in January: 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 January
Wahiawa, HI
- Average wind speed in January: 7.7mph
The windiest months (with the highest average wind speed) are June and July (10.2mph).
The calmest month (with the lowest average wind speed) is October (7.6mph).
Average humidity in January
Wahiawa, HI
- Average humidity in January: 76%
The months with the highest relative humidity are February and December (77%).
The month with the lowest relative humidity is September (73%).
Average rainfall in January
Wahiawa, HI
- Average rainfall in January: 1.34"
The wettest month (with the highest rainfall) is October (2.6").
The driest month (with the least rainfall) is July (1.26").
Average rainfall days in January
Wahiawa, HI
- Average rainfall days in January: 16 days
The month with the highest number of rainy days is August (23.8 days).
The month with the least rainy days is January (16 days).
Average daylight in January /
Average sunshine in January
Wahiawa, HI
- Average daylight in January: 11h and 0min
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 January: 7h and 2min
The month with the most sunshine is June (Average sunshine: 8h and 24min).
The month with the least sunshine is November (Average sunshine: 5h and 36min).
Average sunshine days in January
Wahiawa, HI
- Average sunshine days in January: 10.8 days
The month with the most sunshine days is January (10.8 days).
The month with the least sunshine days is August (3.3 days).
Average UV index in January
Wahiawa, HI
- Average UV index in January: 5
The months with the highest UV index are March, April, May, June, July, August, September, October and November (UV index 6).
The months with the lowest UV index are January, February and December (UV index 5).
Average cloud cover in January
Wahiawa, HI
- Average cloud cover in January: 43
The month with the most cloud cover is June (Cloud cover 52).
The month with the least cloud cover is January (Cloud cover 43).
Average visibility in January
Wahiawa, HI
- Average visibility in January: 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).
Wahiawa, Hawaii, USA
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