January weather forecastMokuleia, HI
January
Weather in January
January, like December, in Mokuleia, Hawaii, is another warm winter month, with temperature in the range of an average low of 70°F (21.1°C) and an average high of 75.9°F (24.4°C).Temperature
The beginning of January records an average high-temperature of a still warm 75.9°F (24.4°C), almost echoing the conditions of the previous month. January notes an average low temperature of 70°F (21.1°C), subtly down from the daytime highs.Humidity
In January, the average relative humidity is 75%.Rainfall
In Mokuleia, during January, the rain falls for 12.5 days and regularly aggregates up to 0.79" (20mm) of precipitation. Throughout the year, there are 190.2 rainfall days, and 11.65" (296mm) of precipitation is accumulated.Daylight
In January, the average length of the day 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 7:10 am and sunset at 6:21 pm HST.
Sunshine
In Mokuleia, the average sunshine in January is 8.2h.UV index
The months with the lowest UV index in Mokuleia are January through June, August, October through December, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high threat to health from exposure to the Sun's UV rays for the average person.Note: The UV index of 6 during January leads to these advisories:
Uphold preventive measures and conform to sun safety guidelines. Defending against skin and eye harm is crucial. Limit your exposure to the sun's UV radiation, which is strongest between 10 a.m. and 4 p.m., and note that parasols or canopies may not provide full sun protection. 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
Average temperature in January
Mokuleia, HI
- Average high temperature in January: 75.9°F
The warmest month (with the highest average high temperature) is September (81.7°F).
The month with the lowest average high temperature is February (75°F).
- Average low temperature in January: 70°F
The months with the highest average low temperature are August and September (75.7°F).
The coldest month (with the lowest average low temperature) is February (68.5°F).
Average pressure in January
Mokuleia, HI
- Average pressure in January: 30"Hg
The month with the highest atmospheric pressure is April (30.06"Hg).
The month with the lowest atmospheric pressure is October (29.97"Hg).
Average wind speed in January
Mokuleia, HI
- Average wind speed in January: 9mph
The windiest month (with the highest average wind speed) is July (11.6mph).
The calmest month (with the lowest average wind speed) is January (9mph).
Average humidity in January
Mokuleia, HI
- Average humidity in January: 75%
The months with the highest relative humidity are February and December (76%).
The months with the lowest relative humidity are May and September (74%).
Average rainfall in January
Mokuleia, HI
- Average rainfall in January: 0.79"
The wettest months (with the highest rainfall) are February and October (1.34").
The driest month (with the least rainfall) is July (0.63").
Average rainfall days in January
Mokuleia, HI
- Average rainfall days in January: 12.5 days
The month with the highest number of rainy days is March (17.7 days).
The month with the least rainy days is January (12.5 days).
Average daylight in January /
Average sunshine in January
Mokuleia, 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: 8h and 12min
The month with the most sunshine is June (Average sunshine: 9h and 54min).
The month with the least sunshine is November (Average sunshine: 6h and 12min).
Average sunshine days in January
Mokuleia, HI
- Average sunshine days in January: 12.9 days
The month with the most sunshine days is January (12.9 days).
The month with the least sunshine days is September (6.5 days).
Average UV index in January
Mokuleia, HI
- Average UV index in January: 6
The months with the highest UV index are July and September (UV index 7).
The months with the lowest UV index are January, February, March, April, May, June, August, October, November and December (UV index 6).
Average cloud cover in January
Mokuleia, HI
- Average cloud cover in January: 37
The month with the most cloud cover is March (Cloud cover 44).
The months with the least cloud cover are January and September (Cloud cover 37).
Average visibility in January
Mokuleia, 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).





