January weather forecastHanapepe, HI
January
Weather in January
January, the same as December, is a moderately hot winter month in Hanapepe, Hawaii, with an average temperature fluctuating between 70.3°F (21.3°C) and 74.7°F (23.7°C).Temperature
With January's arrival, Hanapepe notes an average high-temperature of a still warm 74.7°F (23.7°C), closely following the trend of the preceding month. During the nights of January, Hanapepe records an average low-temperature of 70.3°F (21.3°C), reflecting a modest decrease from daytime highs.Humidity
January, May, September and November, with an average relative humidity of 74%, are the least humid months.Rainfall
In Hanapepe, in January, during 11.5 rainfall days, 1.26" (32mm) of precipitation is typically accumulated. In Hanapepe, during the entire year, the rain falls for 172.7 days and collects up to 15.75" (400mm) of precipitation.Ocean temperature
In Hanapepe, in January, the average water temperature is 76.8°F (24.9°C).Note: Factoring in a person's dislike for cold, combined with conditions like sunshine, wind, and temperature, a dip in 76.8°F (24.9°C) waters might be satisfying. (It is worth noting that the Olympic swimming waters are maintained between 77°F (25°C) and 82.4°F (28°C).)
Daylight
The average length of the day in January is 10h and 59min.On the first day of the month, sunrise is at 7:17 am and sunset at 6:06 pm. On the last day of January, sunrise is at 7:16 am and sunset at 6:26 pm HST.
Sunshine
In Hanapepe, the average sunshine in January is 8.9h.UV index
January through June, October through December, with an average maximum UV index of 6, are months with the lowest UV index. A UV Index reading of 6 to 7 represents a high threat to health from exposure to the Sun's UV radiation for average individuals.Note: In January, the maximum UV index of 6 suggests this advice:
Employ safeguards and advocate sun safety protocols. Shielding against skin and eye damage is crucial. Limit your direct sun exposure, especially between 10 a.m. and 4 p.m., when UV radiation is strongest. Shade structures might not provide complete sun protection. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays. Take warning! Reflective sand and water surfaces intensify the Sun's UV rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in January
Hanapepe, HI
- Average high temperature in January: 74.7°F
The warmest month (with the highest average high temperature) is August (80.8°F).
The months with the lowest average high temperature are February and March (73.4°F).
- Average low temperature in January: 70.3°F
The month with the highest average low temperature is September (76.3°F).
The coldest month (with the lowest average low temperature) is February (69.1°F).
Average pressure in January
Hanapepe, HI
- Average pressure in January: 30.01"Hg
The months with the highest atmospheric pressure are March and April (30.06"Hg).
The months with the lowest atmospheric pressure are September and October (29.98"Hg).
Average wind speed in January
Hanapepe, HI
- Average wind speed in January: 9.1mph
The windiest month (with the highest average wind speed) is March (10.7mph).
The calmest month (with the lowest average wind speed) is May (8.6mph).
Average humidity in January
Hanapepe, HI
- Average humidity in January: 74%
The months with the highest relative humidity are February, March, April, June, July, August, October and December (75%).
The months with the lowest relative humidity are January, May, September and November (74%).
Average rainfall in January
Hanapepe, HI
- Average rainfall in January: 1.26"
The wettest month (with the highest rainfall) is March (2.2").
The driest month (with the least rainfall) is July (0.63").
Average rainfall days in January
Hanapepe, HI
- Average rainfall days in January: 11.5 days
The month with the highest number of rainy days is March (16.8 days).
The month with the least rainy days is January (11.5 days).
Average sea temperature in January
Hanapepe, HI
- Average sea temperature in January: 76.8°F
The best month for swimming (with the highest average sea temperature) is September (80.5°F).
The coldest month (with the lowest average sea temperature) is March (75.4°F).
Average daylight in January /
Average sunshine in January
Hanapepe, HI
- Average daylight in January: 11h and 0min
The month with the longest days is June (Average daylight: 13h and 30min).
The month with the shortest days is December (Average daylight: 10h and 48min).
- Average sunshine in January: 8h and 54min
The month with the most sunshine is June (Average sunshine: 11h and 0min).
The month with the least sunshine is November (Average sunshine: 7h and 6min).
Average sunshine days in January
Hanapepe, HI
- Average sunshine days in January: 13.8 days
The month with the most sunshine days is January (13.8 days).
The month with the least sunshine days is November (6.7 days).
Average UV index in January
Hanapepe, HI
- Average UV index in January: 6
The months with the highest UV index are July, August and September (UV index 7).
The months with the lowest UV index are January, February, March, April, May, June, October, November and December (UV index 6).
Average cloud cover in January
Hanapepe, HI
- Average cloud cover in January: 28
The month with the most cloud cover is March (Cloud cover 35).
The months with the least cloud cover are January and September (Cloud cover 28).
Average visibility in January
Hanapepe, 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).





