January weather forecastHanamaulu, HI
January
Weather in January
January, the same as December, is another warm winter month in Hanamaulu, Hawaii, with an average temperature ranging between min 69.6°F (20.9°C) and max 74.7°F (23.7°C).Temperature
January brings an average high-temperature of a still moderately hot 74.7°F (23.7°C), nearly identical to the preceding month. Throughout January, Hanamaulu observes a steady low-temperature average of 69.6°F (20.9°C), reflecting a minor dip from daytime highs.Humidity
The least humid month in Hanamaulu is January, with an average relative humidity of 75%.Rainfall
In Hanamaulu, in January, during 12.5 rainfall days, 1.57" (40mm) of precipitation is typically accumulated. Throughout the year, there are 218.4 rainfall days, and 22.13" (562mm) of precipitation is accumulated.Ocean temperature
In January, the average ocean temperature is 76.6°F (24.8°C).Note: For individuals prone to feeling cold, swimming in 73.4°F (23°C) is still regarded as intolerable. A wetsuit is not a necessity, but sunshine, wind, and air temperature are essential factors for relishing swimming at 76.6°F (24.8°C).
Daylight
In January, the average length of the day is 10h and 58min.On the first day of January, sunrise is at 7:16 am and sunset at 6:05 pm. On the last day of the month, sunrise is at 7:15 am and sunset at 6:25 pm HST.
Sunshine
The average sunshine in January in Hanamaulu, Hawaii, is 8.1h.UV index
The months with the lowest UV index are January through August, October through December, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high health risk from unsafe exposure to UV radiation for ordinary individuals.Note: The UV index of 6 during January translates into the following guidance:
Escape overexposure. People with light skin may incur burns in fewer than 20 minutes. Try to minimize direct Sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Also note that objects like parasols or canopies might not provide complete sun protection. During bright days, sunglasses that offer UVA and UVB defense are recommended. Caution! The reflection of sand and water significantly amplifies the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in January
Hanamaulu, HI
- Average high temperature in January: 74.7°F
The warmest month (with the highest average high temperature) is September (79.7°F).
The months with the lowest average high temperature are February and March (73.2°F).
- Average low temperature in January: 69.6°F
The month with the highest average low temperature is September (75.9°F).
The coldest month (with the lowest average low temperature) is February (68.5°F).
Average pressure in January
Hanamaulu, HI
- Average pressure in January: 30.01"Hg
The month with the highest atmospheric pressure is April (30.07"Hg).
The months with the lowest atmospheric pressure are September and October (29.98"Hg).
Average wind speed in January
Hanamaulu, HI
- Average wind speed in January: 10mph
The windiest month (with the highest average wind speed) is July (12.3mph).
The calmest month (with the lowest average wind speed) is January (10mph).
Average humidity in January
Hanamaulu, HI
- Average humidity in January: 75%
The months with the highest relative humidity are June, July, August, October and December (77%).
The month with the lowest relative humidity is January (75%).
Average rainfall in January
Hanamaulu, HI
- Average rainfall in January: 1.57"
The wettest month (with the highest rainfall) is March (2.52").
The driest month (with the least rainfall) is April (1.3").
Average rainfall days in January
Hanamaulu, HI
- Average rainfall days in January: 12.5 days
The month with the highest number of rainy days is August (21.1 days).
The month with the least rainy days is January (12.5 days).
Average sea temperature in January
Hanamaulu, HI
- Average sea temperature in January: 76.6°F
The best month for swimming (with the highest average sea temperature) is September (80.4°F).
The coldest month (with the lowest average sea temperature) is March (75.3°F).
Average daylight in January /
Average sunshine in January
Hanamaulu, 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 6min
The month with the most sunshine is June (Average sunshine: 9h and 42min).
The month with the least sunshine is November (Average sunshine: 6h and 12min).
Average sunshine days in January
Hanamaulu, HI
- Average sunshine days in January: 12.8 days
The month with the most sunshine days is January (12.8 days).
The month with the least sunshine days is August (2.9 days).
Average UV index in January
Hanamaulu, 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
Hanamaulu, HI
- Average cloud cover in January: 38
The month with the most cloud cover is March (Cloud cover 47).
The months with the least cloud cover are January and September (Cloud cover 38).
Average visibility in January
Hanamaulu, 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).
