January weather forecastKahului, HI
January
Weather in January
Being the first month of the year, January in Kahului, Hawaii, is characterized by a mild and pleasant weather pattern. Temperatures oscillate between 71.6°F (22°C) and 74.7°F (23.7°C). This makes January ideal for beachside relaxation, as the gentle breeze complements the warm air rather perfectly. Moreover, the moderate humidity further heightens the overall comfort. Still, there is a touch of precipitation, but this does not typically hinder outdoor activities.Temperature
With January's arrival, Kahului notes an average high-temperature of a still moderately hot 74.7°F (23.7°C), closely following the trend of the preceding month. Kahului's January nights experience a subtle temperature dip to an average of 71.6°F (22°C).Humidity
The months with the lowest humidity are January and February, with an average relative humidity of 74%.Rainfall
In Kahului, during January, the rain falls for 8.8 days and regularly aggregates up to 0.55" (14mm) of precipitation. In Kahului, during the entire year, the rain falls for 103.4 days and collects up to 6.57" (167mm) of precipitation.Ocean temperature
In Kahului, the average seawater temperature in January is 76.3°F (24.6°C).Note: Imagine a swim in 76.3°F (24.6°C) waters. How you'd feel depends on your cold sensitivity, the sun's rays, the caress of the wind, and the warmth enveloping you. Comparatively, Olympic swimmers train in waters between 77°F (25°C) and 82.4°F (28°C).
Daylight
In Kahului, the average length of the day in January is 11h and 2min.On the first day of January, sunrise is at 7:02 am and sunset at 5:56 pm. On the last day of the month, sunrise is at 7:02 am and sunset at 6:15 pm HST.
Sunshine
In Kahului, the average sunshine in January is 8.6h.UV index
January through June, November and December, with an average maximum UV index of 6, are months with the lowest UV index. A UV Index estimate of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation for the average person.Note: The UV index of 6 during January translates into the following guidance:
Enforce precautions and stick to sun safety measures. Preservation from skin and eye damage is essential. Remember that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. Make an effort to avoid direct sun exposure during these hours. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit. Notice! The Sun's UV exposure elevates with sand and water reflections.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in January
Kahului, HI
- Average high temperature in January: 74.7°F
The warmest month (with the highest average high temperature) is September (79.9°F).
The month with the lowest average high temperature is February (73.9°F).
- Average low temperature in January: 71.6°F
The month with the highest average low temperature is October (76.5°F).
The coldest months (with the lowest average low temperature) are February and March (70.7°F).
Average pressure in January
Kahului, 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
Kahului, HI
- Average wind speed in January: 10.4mph
The windiest month (with the highest average wind speed) is June (13.6mph).
The calmest month (with the lowest average wind speed) is January (10.4mph).
Average humidity in January
Kahului, HI
- Average humidity in January: 74%
The months with the highest relative humidity are July and August (76%).
The months with the lowest relative humidity are January and February (74%).
Average rainfall in January
Kahului, HI
- Average rainfall in January: 0.55"
The wettest months (with the highest rainfall) are March and December (0.87").
The driest month (with the least rainfall) is June (0.2").
Average rainfall days in January
Kahului, HI
- Average rainfall days in January: 8.8 days
The month with the highest number of rainy days is March (11.9 days).
The month with the least rainy days is June (6.6 days).
Average sea temperature in January
Kahului, HI
- Average sea temperature in January: 76.3°F
The best month for swimming (with the highest average sea temperature) is September (80°F).
The coldest month (with the lowest average sea temperature) is March (75.6°F).
Average daylight in January /
Average sunshine in January
Kahului, 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 36min
The month with the most sunshine is June (Average sunshine: 11h and 30min).
The month with the least sunshine is December (Average sunshine: 7h and 0min).
Average sunshine days in January
Kahului, HI
- Average sunshine days in January: 19.3 days
The month with the most sunshine days is June (19.9 days).
The month with the least sunshine days is March (15.2 days).
Average UV index in January
Kahului, HI
- Average UV index in January: 6
The months with the highest UV index are July, August, September and October (UV index 7).
The months with the lowest UV index are January, February, March, April, May, June, November and December (UV index 6).
Average cloud cover in January
Kahului, HI
- Average cloud cover in January: 22
The month with the most cloud cover is March (Cloud cover 30).
The months with the least cloud cover are June and September (Cloud cover 21).
Average visibility in January
Kahului, 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).
