January weather forecastKeaau, HI
January
Weather in January
January, like December, is an agreeable winter month in Keaau, Hawaii, with an average temperature fluctuating between 70.9°F (21.6°C) and 64.8°F (18.2°C).Temperature
At the onset of January, Keaau records an average high-temperature of a still agreeable 70.9°F (21.6°C), showing little deviation from the preceding month. Keaau observes an average low-temperature of 64.8°F (18.2°C) during the slightly cooler nights of January.Humidity
January, May through July, with an average relative humidity of 78%, are the least humid months in Keaau, Hawaii.Rainfall
In Keaau, Hawaii, in January, it is raining for 13.3 days, with typically 2.72" (69mm) of accumulated precipitation. Throughout the year, in Keaau, there are 227.7 rainfall days, and 27.83" (707mm) of precipitation is accumulated.Daylight
In Keaau, Hawaii, the average length of the day in January is 11h and 7min.On the first day of the month, sunrise is at 6:54 am and sunset at 5:52 pm. On the last day of January, sunrise is at 6:55 am and sunset at 6:11 pm HST.
Sunshine
In January, the average sunshine is 7.9h.UV index
The months with the lowest UV index in Keaau are January through April, with an average maximum UV index of 5. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for ordinary individuals.Note: A maximum UV index of 5 in January translates into the following recommendations:
Exercise prevention - Protecting skin and eyes from harm is required. Around midday, solar radiation is most harmful; hence, exposure should be limited. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in January
Keaau, HI
- Average high temperature in January: 70.9°F
The warmest month (with the highest average high temperature) is August (75.4°F).
The month with the lowest average high temperature is March (69.6°F).
- Average low temperature in January: 64.8°F
The month with the highest average low temperature is September (70°F).
The coldest month (with the lowest average low temperature) is March (64°F).
Average pressure in January
Keaau, 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
Keaau, HI
- Average wind speed in January: 7mph
The windiest month (with the highest average wind speed) is August (7.6mph).
The calmest month (with the lowest average wind speed) is October (6.7mph).
Average humidity in January
Keaau, HI
- Average humidity in January: 78%
The month with the highest relative humidity is March (80%).
The months with the lowest relative humidity are January, May, June and July (78%).
Average rainfall in January
Keaau, HI
- Average rainfall in January: 2.72"
The wettest month (with the highest rainfall) is February (3.78").
The driest month (with the least rainfall) is June (1.1").
Average rainfall days in January
Keaau, HI
- Average rainfall days in January: 13.3 days
The month with the highest number of rainy days is March (22.9 days).
The month with the least rainy days is January (13.3 days).
Average daylight in January /
Average sunshine in January
Keaau, HI
- Average daylight in January: 11h and 6min
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: 7h and 54min
The month with the most sunshine is June (Average sunshine: 10h and 54min).
The month with the least sunshine is December (Average sunshine: 6h and 30min).
Average sunshine days in January
Keaau, HI
- Average sunshine days in January: 12.1 days
The month with the most sunshine days is January (12.1 days).
The month with the least sunshine days is August (1.8 days).
Average UV index in January
Keaau, HI
- Average UV index in January: 5
The months with the highest UV index are May, June, July, August, September, October, November and December (UV index 6).
The months with the lowest UV index are January, February, March and April (UV index 5).
Average cloud cover in January
Keaau, HI
- Average cloud cover in January: 26
The month with the most cloud cover is March (Cloud cover 42).
The month with the least cloud cover is January (Cloud cover 26).
Average visibility in January
Keaau, 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).
