Contents
- Weather in January
- Frequently asked questions
- Average temperature in January
- Average pressure in January
- Average wind speed in January
- Average humidity in January
- Average rainfall in January
- Average rainfall days in January
- Average sea temperature in January
- Average daylight in January
- Average sunshine in January
- Average sunshine days in January
- Average UV index in January
- Average cloud cover in January
- Average visibility in January
Weather in January
Temperature
The arrival of January brings an average high-temperature of a still warm 75.4°F (24.1°C), nearly identical to December's 76.1°F (24.5°C). January registers an average low temperature of 70.5°F (21.4°C) in Kaaawa, subtly lower than the daytime maximum.Humidity
The months with the lowest humidity in Kaaawa, Hawaii, are January, May, June, September and November, with an average relative humidity of 75%.Rainfall
In Kaaawa, in January, during 13.7 rainfall days, 1.34" (34mm) of precipitation is typically accumulated. In Kaaawa, during the entire year, the rain falls for 187.1 days and collects up to 15.83" (402mm) of precipitation.Ocean temperature
In January, the average ocean temperature is 75.9°F (24.4°C).Note: When considering a person's aversion to cold, factors like sunshine, wind, and atmospheric temperature are key. Swimming in 75.9°F (24.4°C) might be delightful. (Remember: The Olympics' swimming events have water temperatures between 77°F (25°C) and 82.4°F (28°C).)
Daylight
In January, the average length of the day is 11h and 0min.On the first day of January in Kaaawa, sunrise is at 7:09 am and sunset at 6:00 pm. On the last day of the month, sunrise is at 7:09 am and sunset at 6:20 pm HST.
Sunshine
In Kaaawa, the average sunshine in January is 8.3h.UV index
The months with the lowest UV index are January through June, October through December, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health hazard from exposure to the Sun's UV radiation for the ordinary person.Note: The UV index of 6 during January leads to these advisories:
Conform to measures and uphold sun safety traditions. Warding off skin and eye harm is necessary. Avoid direct exposure to the Sun between 10 a.m. and 4 p.m., the peak period for UV radiation, noting that objects like parasols or canopies might not offer complete sun protection. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation. Take caution! The UV rays from the Sun gain strength from sand and water reflections.
Frequently asked questions
What is the average January temperature in Kaaawa?
What are the least humid months in Kaaawa?
What is the average humidity in January in Kaaawa?
How much does it rain in Kaaawa in January?
What is the water temperature in January in Kaaawa?
What is the average length of the day in January in Kaaawa?
What time are sunrise and sunset in January in Kaaawa?
How long on average sun shines in January in Kaaawa?
What are the months with the lowest UV index in Kaaawa?
How high is the UV index in January in Kaaawa?
Average temperature in January
Kaaawa, HI
- Average high temperature in January: 75.4°F
The warmest months (with the highest average high temperature) are August and September (81°F).
The month with the lowest average high temperature is February (74.3°F).
- Average low temperature in January: 70.5°F
The month with the highest average low temperature is August (76.6°F).
The coldest month (with the lowest average low temperature) is February (69.6°F).
Average pressure in January
Kaaawa, 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
Kaaawa, HI
- Average wind speed in January: 10.3mph
The windiest month (with the highest average wind speed) is July (13.5mph).
The calmest month (with the lowest average wind speed) is January (10.3mph).
Average humidity in January
Kaaawa, HI
- Average humidity in January: 75%
The months with the highest relative humidity are February, March, April, July, August, October and December (76%).
The months with the lowest relative humidity are January, May, June, September and November (75%).
Average rainfall in January
Kaaawa, HI
- Average rainfall in January: 1.34"
The wettest month (with the highest rainfall) is March (2.01").
The driest month (with the least rainfall) is July (0.71").
Average rainfall days in January
Kaaawa, HI
- Average rainfall days in January: 13.7 days
The month with the highest number of rainy days is March (18.3 days).
The month with the least rainy days is June (13.5 days).
Average sea temperature in January
Kaaawa, HI
- Average sea temperature in January: 76°F
The best month for swimming (with the highest average sea temperature) is September (80.1°F).
The coldest month (with the lowest average sea temperature) is March (75°F).
Average daylight in January /
Average sunshine in January
Kaaawa, 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 2min
The month with the most sunshine is June (Average sunshine: 10h and 42min).
The month with the least sunshine is December (Average sunshine: 6h and 18min).
Average sunshine days in January
Kaaawa, HI
- Average sunshine days in January: 11.5 days
The month with the most sunshine days is June (12.2 days).
The month with the least sunshine days is April (6.5 days).
Average UV index in January
Kaaawa, 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
Kaaawa, HI
- Average cloud cover in January: 35
The month with the most cloud cover is March (Cloud cover 41).
The month with the least cloud cover is September (Cloud cover 32).
Average visibility in January
Kaaawa, 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).
Kaaawa, Hawaii, USA
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