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 onset of January brings an average high-temperature of a still agreeable 69.4°F (20.8°C), nearly matching the December temperature. During January, Keauhou's temperature shows a minor deviation from daytime highs, falling to a steady low-temperature average of 65.1°F (18.4°C).Humidity
In January, the average relative humidity is 75%.Rainfall
The month with the least rainfall is January, when the rain falls for 10.8 days and typically collects 0.75" (19mm) of precipitation.Ocean temperature
In January, the average ocean 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
In Keauhou, the average length of the day in January is 11h and 7min.On the first day of January in Keauhou, sunrise is at 6:58 am and sunset at 5:56 pm. On the last day of the month, sunrise is at 6:58 am and sunset at 6:15 pm HST.
Sunshine
The average sunshine in January is 9h.UV index
The months with the lowest UV index are January through April, November and December, with an average maximum UV index of 5. A UV Index value of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for the average person.Note: In January, the maximum UV index of 5 suggests these recommendations:
Ensure safety - Imperative it is to shield skin and eyes from damage. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. Employ a wide-brim hat for potent defense against up to 50% of UV rays. Warning! The reflection of sand and water increases the UV dose.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in January?
What is the average humidity in January?
What is the driest month?
How many days does it rain in January?
What is the water temperature in January?
How many hours of daylight does Keauhou have in January?
When are sunrise and sunset in January?
How many hours of sunshine does Keauhou have in January?
What is the month with the lowest UV index?
What is the UV index intensity in January?
Average temperature in January
Keauhou, HI
- Average high temperature in January: 69.4°F
The warmest months (with the highest average high temperature) are August and October (73.2°F).
The month with the lowest average high temperature is February (68.9°F).
- Average low temperature in January: 65.1°F
The month with the highest average low temperature is October (70°F).
The coldest month (with the lowest average low temperature) is March (64.8°F).
Average pressure in January
Keauhou, HI
- Average pressure in January: 29.99"Hg
The month with the highest atmospheric pressure is April (30.04"Hg).
The months with the lowest atmospheric pressure are September and October (29.96"Hg).
Average wind speed in January
Keauhou, HI
- Average wind speed in January: 5.5mph
The windiest month (with the highest average wind speed) is May (6.3mph).
The calmest month (with the lowest average wind speed) is December (5.3mph).
Average humidity in January
Keauhou, HI
- Average humidity in January: 75%
The months with the highest relative humidity are June, July, August and September (81%).
The month with the lowest relative humidity is February (73%).
Average rainfall in January
Keauhou, HI
- Average rainfall in January: 0.75"
The wettest month (with the highest rainfall) is September (1.81").
The driest month (with the least rainfall) is January (0.75").
Average rainfall days in January
Keauhou, HI
- Average rainfall days in January: 10.8 days
The month with the highest number of rainy days is August (21.8 days).
The month with the least rainy days is January (10.8 days).
Average sea temperature in January
Keauhou, HI
- Average sea temperature in January: 76.6°F
The best month for swimming (with the highest average sea temperature) is September (80°F).
The coldest month (with the lowest average sea temperature) is March (76°F).
Average daylight in January /
Average sunshine in January
Keauhou, 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: 9h and 0min
The month with the most sunshine is May (Average sunshine: 10h and 42min).
The months with the least sunshine are November and December (Average sunshine: 7h and 18min).
Average sunshine days in January
Keauhou, HI
- Average sunshine days in January: 12.7 days
The month with the most sunshine days is January (12.7 days).
The month with the least sunshine days is May (3.2 days).
Average UV index in January
Keauhou, HI
- Average UV index in January: 5
The months with the highest UV index are May, June, July, August, September and October (UV index 6).
The months with the lowest UV index are January, February, March, April, November and December (UV index 5).
Average cloud cover in January
Keauhou, HI
- Average cloud cover in January: 15
The month with the most cloud cover is June (Cloud cover 31).
The month with the least cloud cover is January (Cloud cover 15).
Average visibility in January
Keauhou, 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).
Keauhou, Hawaii, USA
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