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
Keanakolu enters January with an average high-temperature of a still enjoyable 63°F (17.2°C), mirroring December's climate. Keanakolu temperatures generally rest at a low of 52.9°F (11.6°C) during the January nights.Humidity
In January, the average relative humidity is 79%.Rainfall
In Keanakolu, during January, the rain falls for 17.1 days and regularly aggregates up to 1.69" (43mm) of precipitation. In Keanakolu, Hawaii, during the entire year, the rain falls for 280.8 days and collects up to 33.9" (861mm) of precipitation.Daylight
In Keanakolu, the average length of the day in January is 11h and 5min.On the first day of January, sunrise is at 6:56 am and sunset at 5:53 pm. On the last day of the month, sunrise is at 6:56 am and sunset at 6:12 pm HST.
Sunshine
In Keanakolu, Hawaii, the average sunshine in January is 8.3h.UV index
January through April, November and December, with an average maximum UV index of 4, are months with the lowest UV index. A UV Index estimate of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for average individuals.Note: In January, the maximum UV index of 4 suggests this advice:
Take necessary precautions - Suggestions to elude sunburn are provided. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average January temperature in Keanakolu?
What is the average humidity in January in Keanakolu?
How much does it rain in Keanakolu in January?
What is the average length of the day in January in Keanakolu?
When is the sunrise / sunset in January in Keanakolu?
How many hours of sunshine does Keanakolu have in January?
What are the months with the lowest UV index in Keanakolu?
What is the UV index reading in January in Keanakolu?
Average temperature in January
Keanakolu, HI
- Average high temperature in January: 63°F
The warmest month (with the highest average high temperature) is August (67.5°F).
The month with the lowest average high temperature is March (61.9°F).
- Average low temperature in January: 52.9°F
The month with the highest average low temperature is September (59°F).
The coldest month (with the lowest average low temperature) is February (52°F).
Average pressure in January
Keanakolu, HI
- Average pressure in January: 30"Hg
The month with the highest atmospheric pressure is April (30.05"Hg).
The months with the lowest atmospheric pressure are September and October (29.97"Hg).
Average wind speed in January
Keanakolu, HI
- Average wind speed in January: 4.5mph
The windiest months (with the highest average wind speed) are July and August (5.5mph).
The calmest months (with the lowest average wind speed) are January, May and October (4.5mph).
Average humidity in January
Keanakolu, HI
- Average humidity in January: 79%
The months with the highest relative humidity are September and October (84%).
The month with the lowest relative humidity is February (78%).
Average rainfall in January
Keanakolu, HI
- Average rainfall in January: 1.69"
The wettest month (with the highest rainfall) is August (4.13").
The driest month (with the least rainfall) is June (1.57").
Average rainfall days in January
Keanakolu, HI
- Average rainfall days in January: 17.1 days
The month with the highest number of rainy days is September (27.3 days).
The month with the least rainy days is January (17.1 days).
Average daylight in January /
Average sunshine in January
Keanakolu, HI
- Average daylight in January: 11h and 1min
The month with the longest days is June (Average daylight: 13h and 18min).
The month with the shortest days is December (Average daylight: 11h and 0min).
- Average sunshine in January: 8h and 2min
The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is December (Average sunshine: 6h and 30min).
Average sunshine days in January
Keanakolu, HI
- Average sunshine days in January: 9.7 days
The month with the most sunshine days is January (9.7 days).
The month with the least sunshine days is September (0.8 days).
Average UV index in January
Keanakolu, HI
- Average UV index in January: 4
The months with the highest UV index are May, June, July, August, September and October (UV index 5).
The months with the lowest UV index are January, February, March, April, November and December (UV index 4).
Average cloud cover in January
Keanakolu, HI
- Average cloud cover in January: 29
The months with the most cloud cover are April and September (Cloud cover 43).
The month with the least cloud cover is January (Cloud cover 29).
Average visibility in January
Keanakolu, 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).
Keanakolu, Hawaii, USA
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