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
January in Aiea notes an average high-temperature of a still warm 75.7°F (24.3°C), subtly differing from December's 76.5°F (24.7°C). The nights of January in Aiea are characterized by an average low-temperature of 70°F (21.1°C), subtly descending from daytime highs.Humidity
In Aiea, the average relative humidity in January is 75%.Rainfall
In Aiea, during January, the rain falls for 12.6 days and regularly aggregates up to 0.98" (25mm) of precipitation. In Aiea, during the entire year, the rain falls for 197.2 days and collects up to 14.61" (371mm) of precipitation.Ocean temperature
In Aiea, in January, the average water temperature is 76.6°F (24.8°C).Note: Considering one's resistance to cold, elements like sunshine, wind, and the prevailing temperature matter when taking a swim in 76.6°F (24.8°C) waters. (For comparison, the Olympic swimming standard is set between 77°F (25°C) and 82.4°F (28°C).)
Daylight
In January, the average length of the day in Aiea is 11h and 1min.On the first day of the month, sunrise is at 7:09 am and sunset at 6:01 pm. On the last day of January, in Aiea, sunrise is at 7:09 am and sunset at 6:20 pm HST.
Sunshine
In January, the average sunshine in Aiea is 8.5h.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 estimate of 6 to 7 represents a high health hazard from exposure to the Sun's UV rays for the ordinary person.Note: A maximum high daily UV index of 6 during January translates into the following directions:
Elude overexposure. Fair-skinned people could get burnt in less than 20 minutes. Between 10 a.m. and 4 p.m., the Sun emits the most powerful UV radiation. Limit direct exposure to the Sun during these hours. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays. Stay alert! Reflective properties of sand and water amplify the Sun's UV radiation.
Frequently asked questions
What are January temperatures in Aiea?
What is the average humidity in January in Aiea?
How much does it rain in Aiea in January?
What is the water temperature in January in Aiea?
What is the average length of the day in January in Aiea?
When is the sunrise / sunset in January in Aiea?
How many hours of sunshine does Aiea have in January?
What is the month with the lowest UV index in Aiea?
What is the UV index intensity in January in Aiea?
Average temperature in January
Aiea, HI
- Average high temperature in January: 75.7°F
The warmest month (with the highest average high temperature) is September (81.5°F).
The months with the lowest average high temperature are February and March (75°F).
- Average low temperature in January: 70°F
The month with the highest average low temperature is August (75.7°F).
The coldest month (with the lowest average low temperature) is February (69.1°F).
Average pressure in January
Aiea, 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
Aiea, HI
- Average wind speed in January: 9mph
The windiest month (with the highest average wind speed) is July (12.1mph).
The calmest month (with the lowest average wind speed) is January (9mph).
Average humidity in January
Aiea, HI
- Average humidity in January: 75%
The months with the highest relative humidity are February and December (76%).
The months with the lowest relative humidity are April, May, September and November (74%).
Average rainfall in January
Aiea, HI
- Average rainfall in January: 0.98"
The wettest months (with the highest rainfall) are March and October (1.81").
The driest month (with the least rainfall) is July (0.67").
Average rainfall days in January
Aiea, HI
- Average rainfall days in January: 12.6 days
The months with the highest number of rainy days are March and October (18 days).
The month with the least rainy days is January (12.6 days).
Average sea temperature in January
Aiea, 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 (75.7°F).
Average daylight in January /
Average sunshine in January
Aiea, 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 3min
The month with the most sunshine is June (Average sunshine: 10h and 48min).
The months with the least sunshine are November and December (Average sunshine: 6h and 30min).
Average sunshine days in January
Aiea, 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 October (6.3 days).
Average UV index in January
Aiea, 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
Aiea, HI
- Average cloud cover in January: 33
The month with the most cloud cover is March (Cloud cover 40).
The months with the least cloud cover are January and September (Cloud cover 33).
Average visibility in January
Aiea, 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).
Aiea, Hawaii, USA
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