January weather forecastKaunakakai, HI

January

Weather in January

In Kaunakakai, Hawaii, January marks the start of the year with mild weather. Daytime temperatures tend to rise from 72.1°F (22.3°C) to 75.2°F (24°C), offering comfortable warmth to residents and visitors alike. This month also features significant rainfall with an average of 0.87" (22mm) falling over roughly 10.3 days. Wind speeds in this month are at a moderate 10.8mph (17.4km/h), adding to the overall pleasant climate that Hawaii is celebrated for. Relatively high humidity levels are present during this period, making the weather rather humid yet bearable.

Temperature

January commences in Kaunakakai with an average high-temperature of a still moderately hot 75.2°F (24°C), showing little deviation from December's 75.9°F (24.4°C). Kaunakakai's nighttime temperature in January consistently rests at an agreeable 72.1°F (22.3°C).

Humidity

January and November, with an average relative humidity of 74%, are the least humid months.

Rainfall

In Kaunakakai, Hawaii, in January, it is raining for 10.3 days, with typically 0.87" (22mm) of accumulated precipitation. Throughout the year, there are 126.4 rainfall days, and 9.84" (250mm) of precipitation is accumulated.

Ocean temperature

In Kaunakakai, the average seawater temperature in January is 76.5°F (24.7°C).
Note: Considering one's resistance to cold, elements like sunshine, wind, and the prevailing temperature matter when taking a swim in 76.5°F (24.7°C) waters. (For comparison, the Olympic swimming standard is set between 77°F (25°C) and 82.4°F (28°C).)

Daylight

In Kaunakakai, the average length of the day in January is 11h and 1min.
On the first day of the month, sunrise is at 7:05 am and sunset at 5:58 pm. On the last day of January, in Kaunakakai, sunrise is at 7:05 am and sunset at 6:17 pm HST.

Sunshine

The average sunshine in January in Kaunakakai, Hawaii, is 8.7h.

UV index

The months with the lowest UV index are January through May, November and December, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high threat to health from unsafe exposure to UV radiation for average individuals.
Note: The maximum UV index, 6 during January, leads to the following recommendations:
Steer clear of overexposure. Fair-skinned individuals can be scorched in less than 20 minutes. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes. Heads up! The reflection of sand and water notably intensifies UV rays from the Sun.

Updated: Feb 10, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

The high-temperature during January is 75.2°F (24°C) and the low-temperature is 72.1°F (22.3°C).

The months with the lowest humidity are January and November, with an average relative humidity of 74%.

The average relative humidity in January in Kaunakakai is 74%.

In Kaunakakai, Hawaii, in January, during 10.3 rainfall days, 0.87" (22mm) of precipitation is typically accumulated.

In January, the average ocean temperature in Kaunakakai is 76.5°F (24.7°C). Depending on a person's sensitivity to cold, with regards to sunshine, wind, and air temperature, a quick swim in 76.5°F (24.7°C) water may be enjoyable.

In Kaunakakai, the average day length in January is 11h and 1min.

In January, on the first day of the month, sunrise is at 7:05 am and sunset at 5:58 pm. On the last day of the month, in Kaunakakai, sunrise is at 7:05 am and sunset at 6:17 pm HST.

In Kaunakakai, the average sunshine duration in January is 8.7h.

The months with the lowest UV index in Kaunakakai, Hawaii, are January through May, November and December, with an average maximum UV index of 6.

In January, the average daily maximum UV index in Kaunakakai, Hawaii, is 6. A UV Index reading of 6 to 7 represents a high health threat from exposure to Sun's UV rays.

Today

Tomorrow

Long-term

Year January F M A M J J A S O N D

Dec

January

Feb

Average high temperature

75.9°F

75.2°F

74.3°F

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

12.6mph

11.4mph

12.6mph

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

11.4

10.3

11.1

Average sea temperature

Average daylight

Average sunshine

Average sunshine days

12.5

15.3

11.1

Average UV index

Average cloud cover

Average visibility

Average temperature in January
Kaunakakai, HI

Average high temperature in January: 75.2°F

The warmest months (with the highest average high temperature) are August and September (80.2°F).
The month with the lowest average high temperature is February (74.3°F).

Average low temperature in January: 72.1°F

The months with the highest average low temperature are September and October (77.2°F).
The coldest month (with the lowest average low temperature) is March (71.2°F).

Average pressure in January
Kaunakakai, HI

Average pressure in January: 30"Hg

The months with the highest atmospheric pressure are March and April (30.05"Hg).
The months with the lowest atmospheric pressure are September and October (29.97"Hg).

Average wind speed in January
Kaunakakai, HI

Average wind speed in January: 10.8mph

The windiest month (with the highest average wind speed) is July (13.9mph).
The calmest month (with the lowest average wind speed) is January (10.8mph).

Average humidity in January
Kaunakakai, HI

Average humidity in January: 74%

The months with the highest relative humidity are April, May, June, July and August (76%).
The months with the lowest relative humidity are January and November (74%).

Average rainfall in January
Kaunakakai, HI

Average rainfall in January: 0.87"

The wettest month (with the highest rainfall) is March (1.3").
The driest month (with the least rainfall) is July (0.31").

Average rainfall days in January
Kaunakakai, HI

Average rainfall days in January: 10.3 days

The month with the highest number of rainy days is March (13.2 days).
The month with the least rainy days is July (8.5 days).

Average sea temperature in January
Kaunakakai, HI

Average sea temperature in January: 76.4°F

The best month for swimming (with the highest average sea temperature) is September (80.2°F).
The coldest month (with the lowest average sea temperature) is March (75.6°F).

Average daylight in January /
Average sunshine in January
Kaunakakai, 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 42min

The month with the most sunshine is June (Average sunshine: 11h and 30min).
The month with the least sunshine is December (Average sunshine: 6h and 48min).

Average sunshine days in January
Kaunakakai, HI

Average sunshine days in January: 15.3 days

The month with the most sunshine days is July (16.1 days).
The month with the least sunshine days is November (10.8 days).

Average UV index in January
Kaunakakai, HI

Average UV index in January: 6

The months with the highest UV index are June, July, August, September and October (UV index 7).
The months with the lowest UV index are January, February, March, April, May, November and December (UV index 6).

Average cloud cover in January
Kaunakakai, HI

Average cloud cover in January: 26

The months with the most cloud cover are February and March (Cloud cover 30).
The month with the least cloud cover is September (Cloud cover 23).

Average visibility in January
Kaunakakai, 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).