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
As December transitions into January, the average high-temperature rests at a still agreeable 70.9°F (21.6°C), maintaining a close resemblance to the previous month. January in Wainaku, Hawaii, is characterized by a steady nighttime low-temperature of 64.8°F (18.2°C).Humidity
January, May through July, with an average relative humidity of 78%, are the least humid months in Wainaku.Rainfall
In Wainaku, in January, during 13.3 rainfall days, 2.72" (69mm) of precipitation is typically accumulated. Throughout the year, in Wainaku, there are 227.7 rainfall days, and 27.83" (707mm) of precipitation is accumulated.Ocean temperature
In Wainaku, in January, the average water temperature is 76.6°F (24.8°C).Note: Swimming in 76.6°F (24.8°C) can be enjoyable or not, depending on how you feel about the cold and conditions such as sunshine, wind, and the day's temperature. FYI: Olympic standards dictate waters of 77°F (25°C) to 82.4°F (28°C).
Daylight
The average length of the day in January in Wainaku is 11h and 6min.On the first day of the month, sunrise is at 6:54 am and sunset at 5:52 pm. On the last day of January, in Wainaku, Hawaii, sunrise is at 6:55 am and sunset at 6:11 pm HST.
Sunshine
In January, the average sunshine in Wainaku is 7.9h.UV index
January through April, with an average maximum UV index of 5, are months with the lowest UV index. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for the average person.Note: The maximum daily UV index of 5 during January translates into the following directions:
Prioritize safety - Recommendations to avert sunburn are shared. Minimize direct exposure to the Sun during midday when its radiation is at its peak. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear. Caution! The mirror effect of sand and water ups the UV radiation strength.
Frequently asked questions
What are January temperatures in Wainaku?
What is the least humid month in Wainaku?
What is the average humidity in January in Wainaku?
How much does it rain in Wainaku in January?
What is the water temperature in January in Wainaku?
What is the average length of the day in January in Wainaku?
When is the sunrise / sunset in January in Wainaku?
How many hours of sunshine does Wainaku have in January?
When is the lowest UV index in Wainaku?
How high is the UV index in January in Wainaku?
Average temperature in January
Wainaku, HI
- Average high temperature in January: 70.9°F
The warmest month (with the highest average high temperature) is August (75.4°F).
The month with the lowest average high temperature is March (69.6°F).
- Average low temperature in January: 64.8°F
The month with the highest average low temperature is September (70°F).
The coldest month (with the lowest average low temperature) is March (64°F).
Average pressure in January
Wainaku, 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
Wainaku, HI
- Average wind speed in January: 7mph
The windiest month (with the highest average wind speed) is August (7.6mph).
The calmest month (with the lowest average wind speed) is October (6.7mph).
Average humidity in January
Wainaku, HI
- Average humidity in January: 78%
The month with the highest relative humidity is March (80%).
The months with the lowest relative humidity are January, May, June and July (78%).
Average rainfall in January
Wainaku, HI
- Average rainfall in January: 2.72"
The wettest month (with the highest rainfall) is February (3.78").
The driest month (with the least rainfall) is June (1.1").
Average rainfall days in January
Wainaku, HI
- Average rainfall days in January: 13.3 days
The month with the highest number of rainy days is March (22.9 days).
The month with the least rainy days is January (13.3 days).
Average sea temperature in January
Wainaku, HI
- Average sea temperature in January: 76.5°F
The best month for swimming (with the highest average sea temperature) is September (79.3°F).
The coldest month (with the lowest average sea temperature) is March (75.7°F).
Average daylight in January /
Average sunshine in January
Wainaku, HI
- Average daylight in January: 11h and 1min
The month with the longest days is June (Average daylight: 13h and 18min).
The month with the shortest days is December (Average daylight: 11h and 0min).
- Average sunshine in January: 7h and 5min
The month with the most sunshine is June (Average sunshine: 10h and 54min).
The month with the least sunshine is December (Average sunshine: 6h and 30min).
Average sunshine days in January
Wainaku, HI
- Average sunshine days in January: 12.1 days
The month with the most sunshine days is January (12.1 days).
The month with the least sunshine days is August (1.8 days).
Average UV index in January
Wainaku, HI
- Average UV index in January: 5
The months with the highest UV index are May, June, July, August, September, October, November and December (UV index 6).
The months with the lowest UV index are January, February, March and April (UV index 5).
Average cloud cover in January
Wainaku, HI
- Average cloud cover in January: 26
The month with the most cloud cover is March (Cloud cover 42).
The month with the least cloud cover is January (Cloud cover 26).
Average visibility in January
Wainaku, 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).
Wainaku, Hawaii, USA
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