January weather forecastHana, HI
January
Weather in January
Hana, Hawaii blesses all with a mild kickstart in January. This calm month sits comfortably in temperature, before the slight increase that February brings. The sea maintains its lukewarm allure, inviting visitors and locals alike for a plunge. With daylight hours stretching a respectable 11 hours, there is ample opportunity to bask in the Hawaiian sun. January particularly stands out in wind speeds, with maximum wind gusts reaching 15.2mph (24.5km/h), the highest throughout the year.Temperature
Hana experiences an average high-temperature of a still warm 73.8°F (23.2°C) in January, subtly different from December's 74.5°F (23.6°C). Hana sees a gentle drop from the daily peak temperature in January, with an average low settling at an agreeable 71.1°F (21.7°C).Humidity
The months with the lowest humidity in Hana are January and February, with an average relative humidity of 76%.Rainfall
In January, in Hana, the rain falls for 10.6 days. Throughout January, 1.06" (27mm) of precipitation is accumulated. In Hana, during the entire year, the rain falls for 136.7 days and collects up to 13.94" (354mm) of precipitation.Snowfall
In Hana, snow does not fall in January through August, October through December.Ocean temperature
In January, the average ocean temperature is 76.1°F (24.5°C).Note: Swimming in 76.1°F (24.5°C) waters may not appeal to those sensitive to cold. Yet, the presence of sunshine, the strength of the wind, and the air temperature can alter this experience. Some might even opt for a wetsuit for added comfort.
Daylight
In Hana, Hawaii, the average length of the day in January is 11h and 2min.On the first day of the month, sunrise is at 7:00 am and sunset at 5:54 pm. On the last day of January, sunrise is at 7:00 am and sunset at 6:14 pm HST.
Sunshine
In Hana, the average sunshine in January is 8.4h.UV index
The months with the lowest UV index in Hana are January through August, October through December, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health hazard from unprotected exposure to Sun's UV rays for the average person.Note: The average daily UV index of 6 in January transforms into the following instructions:
Resist overexposure. Safeguarding from solar damage is indispensable. Seek shade and limit direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Keep in mind that shade structures like parasols or canopies do not offer complete sun protection. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage. Be attentive! The UV exposure is heightened with reflections from sand and water.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in January
Hana, HI
- Average high temperature in January: 73.8°F
The warmest month (with the highest average high temperature) is September (79°F).
The month with the lowest average high temperature is March (72.9°F).
- Average low temperature in January: 71.1°F
The month with the highest average low temperature is September (76.1°F).
The coldest month (with the lowest average low temperature) is March (69.8°F).
Average pressure in January
Hana, 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
Hana, HI
- Average wind speed in January: 10.9mph
The windiest month (with the highest average wind speed) is June (14.4mph).
The calmest month (with the lowest average wind speed) is January (10.9mph).
Average humidity in January
Hana, HI
- Average humidity in January: 76%
The months with the highest relative humidity are July and August (78%).
The months with the lowest relative humidity are January and February (76%).
Average rainfall in January
Hana, HI
- Average rainfall in January: 1.06"
The wettest month (with the highest rainfall) is October (2.17").
The driest month (with the least rainfall) is September (0.43").
Average rainfall days in January
Hana, HI
- Average rainfall days in January: 10.6 days
The month with the highest number of rainy days is March (14.1 days).
The month with the least rainy days is September (8.1 days).
Average snowfall days in January
Hana, HI
- Average snowfall days in January: 0 days
The month with the highest number of snowfall days is September (0.1 days).
The months with the least snowfall days are January, February, March, April, May, June, July, August, October, November and December (0 days).
Average sea temperature in January
Hana, HI
- Average sea temperature in January: 76.1°F
The best month for swimming (with the highest average sea temperature) is September (79.3°F).
The coldest month (with the lowest average sea temperature) is March (75.5°F).
Average daylight in January /
Average sunshine in January
Hana, 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 54min).
- Average sunshine in January: 8h and 24min
The months with the most sunshine are June and July (Average sunshine: 11h and 18min).
The month with the least sunshine is December (Average sunshine: 6h and 42min).
Average sunshine days in January
Hana, HI
- Average sunshine days in January: 16.8 days
The month with the most sunshine days is January (16.8 days).
The month with the least sunshine days is November (11.2 days).
Average UV index in January
Hana, HI
- Average UV index in January: 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 January
Hana, HI
- Average cloud cover in January: 24
The month with the most cloud cover is March (Cloud cover 33).
The month with the least cloud cover is September (Cloud cover 23).
Average visibility in January
Hana, 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).
