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 unfolding of January shows an average high-temperature of a still agreeable 70.9°F (21.6°C), indicating a slight variance from December's 71.6°F (22°C). Nighttime, during January, brings an average low of 64.8°F (18.2°C), a modest reduction from the day's peak.Humidity
January, May through July, with an average relative humidity of 78%, are the least humid months.Rainfall
In Wainaku, during January, the rain falls for 13.3 days and regularly aggregates up to 2.72" (69mm) of precipitation. Throughout the year, there are 227.7 rainfall days, and 27.83" (707mm) of precipitation is accumulated.Ocean temperature
In January, the average ocean temperature is 76.6°F (24.8°C).Note: Individual cold sensitivities, influenced by sunshine, wind, and the ambient temperature, play a role in finding a swim in 76.6°F (24.8°C) water pleasant. (Olympic swimming events mandate water temperatures from 77°F (25°C) to 82.4°F (28°C).)
Daylight
In January, the average length of the day is 11h and 6min.On the first day of January, sunrise is at 6:54 am and sunset at 5:52 pm. On the last day of the month, sunrise is at 6:55 am and sunset at 6:11 pm HST.
Sunshine
In Wainaku, the average sunshine in January 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 reading of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for the average person.Note: In January, the average maximum UV index of 5 translates into the following recommendations:
Make use of precautions - It is urged to ward off sun damage. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses. Take heed! Reflections of sand and water make the Sun's UV rays stronger.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in January?
What are the least humid months?
What is the average humidity in January?
How many days does it rain in January?
What is the ocean temperature in January?
How many hours of daylight does Wainaku have in January?
When are sunrise and sunset in January?
How many hours of sunshine does Wainaku have in January?
What is the month with the lowest UV index?
What is the UV index reading in January?
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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