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 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 begins with an average high-temperature of a still warm 75.2°F (24°C), reflecting close similarity to the preceding month. Waimanalo's nighttime temperatures in January see a subtle dip to an average of 71.8°F (22.1°C).Humidity
January and November, with an average relative humidity of 74%, are the least humid months.Rainfall
In Waimanalo, during January, the rain falls for 12.6 days and regularly aggregates up to 1.14" (29mm) of precipitation. Throughout the year, there are 169.9 rainfall days, and 13.15" (334mm) of precipitation is accumulated.Daylight
In January, the average length of the day is 11h and 1min.On the first day of the month, sunrise is at 7:08 am and sunset at 6:00 pm. On the last day of January, sunrise is at 7:08 am and sunset at 6:20 pm HST.
Sunshine
In Waimanalo, the average sunshine in January is 8.7h.UV index
The months with the lowest UV index are January through June, November and December, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high health risk from exposure to the Sun's UV rays for the average person.Note: The daily high UV index of 6 in January translates into this advice:
Apply measures and align with sun safety principles. Safeguarding against skin and eye injury is pivotal. Avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is most intense, and remember that not all shade structures provide full protection. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in January?
What is the least humid month?
What is the average humidity in January?
How many days does it rain in January in Waimanalo?
What is the average length of the day in January?
When is the sunrise / sunset in January?
How long on average sun shines in January?
When is the lowest UV index?
What is the UV index reading in January?
Average temperature in January
Waimanalo, HI
- Average high temperature in January: 75.2°F
The warmest month (with the highest average high temperature) is September (80.6°F).
The month with the lowest average high temperature is February (74.5°F).
- Average low temperature in January: 71.8°F
The months with the highest average low temperature are September and October (77°F).
The coldest month (with the lowest average low temperature) is February (70.5°F).
Average pressure in January
Waimanalo, 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
Waimanalo, HI
- Average wind speed in January: 10.7mph
The windiest month (with the highest average wind speed) is July (14.1mph).
The calmest month (with the lowest average wind speed) is January (10.7mph).
Average humidity in January
Waimanalo, HI
- Average humidity in January: 74%
The months with the highest relative humidity are April, June, July, August and December (76%).
The months with the lowest relative humidity are January and November (74%).
Average rainfall in January
Waimanalo, HI
- Average rainfall in January: 1.14"
The wettest month (with the highest rainfall) is March (1.69").
The driest month (with the least rainfall) is July (0.55").
Average rainfall days in January
Waimanalo, HI
- Average rainfall days in January: 12.6 days
The month with the highest number of rainy days is March (16.9 days).
The month with the least rainy days is June (11.3 days).
Average daylight in January /
Average sunshine in January
Waimanalo, 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 4min
The month with the most sunshine is June (Average sunshine: 11h and 12min).
The month with the least sunshine is December (Average sunshine: 6h and 36min).
Average sunshine days in January
Waimanalo, HI
- Average sunshine days in January: 12.8 days
The month with the most sunshine days is June (13.6 days).
The months with the least sunshine days are March and November (6.6 days).
Average UV index in January
Waimanalo, HI
- Average UV index in January: 6
The months with the highest UV index are July, August, September and October (UV index 7).
The months with the lowest UV index are January, February, March, April, May, June, November and December (UV index 6).
Average cloud cover in January
Waimanalo, HI
- Average cloud cover in January: 30
The month with the most cloud cover is March (Cloud cover 36).
The month with the least cloud cover is September (Cloud cover 27).
Average visibility in January
Waimanalo, 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).
Waimanalo, Hawaii, USA
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