January weather forecastKaanapali, HI

Palm trees on green grass overlooking the famous Kaanapali beach in Hawaii

January

Weather in January

January kicks off the year with moderately warm temperatures in Kaanapali, Hawaii. With relative humidity recorded at 75%, the climate can feel rather humid. Coupled with the lowest maximum wind speed of 11.2mph (18km/h) for the year, the air can feel significantly still and thick. Expect the month to be predominantly clear, given the cloud coverage of only 26%. The calm yet humid conditions continue throughout the month, marking the quintessential Hawaiian winter.

Temperature

In the transition from December to January, Kaanapali reports an average high-temperature of a still warm 74.8°F (23.8°C), indicating a close resemblance to the prior month. A mean low-temperature of 71.6°F (22°C) is anticipated during the month of January, a slight step down from the daytime high.

Humidity

The months with the lowest humidity are January through March, September and November, with an average relative humidity of 75%.

Rainfall

In Kaanapali, during January, the rain falls for 9.9 days and regularly aggregates up to 0.67" (17mm) of precipitation. In Kaanapali, during the entire year, the rain falls for 112.6 days and collects up to 7.91" (201mm) of precipitation.

Ocean temperature

In Kaanapali, in January, the average water temperature is 76.6°F (24.8°C).
Note: Depending on a person's sensitivity to cold, with regards to sunshine, wind, and air temperature, a quick swim in 76.6°F (24.8°C) water may be enjoyable. (FYI: The official water temperature required for the Olympic swimming competition is 77°F (25°C) to 82.4°F (28°C).)

Daylight

The average length of the day in January is 11h and 2min.
On the first day of the month, sunrise is at 7:03 am and sunset at 5:56 pm. On the last day of January, sunrise is at 7:03 am and sunset at 6:16 pm HST.

Sunshine

In Kaanapali, the average sunshine in January is 8.3h.

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 value of 6 to 7 symbolizes a high health hazard from unprotected exposure to Sun's UV rays for average individuals.
Note: A typical high UV index of 6 in January suggests the following recommendations:
Avoid excessive sunlight. Those with lighter skin may experience burning in less than 20 minutes. Limit direct sun exposure especially between 10 a.m. and 4 p.m., when UV radiation is at its peak. However, keep in mind that shade structures may not provide full sun protection. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense. Caution! Sand and water surfaces escalate the UV intensity from the Sun.

Updated: Aug 13, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

The average high-temperature and low-temperature during January are 74.8°F (23.8°C) and 71.6°F (22°C) respectively.

The months with the lowest humidity are January through March, September and November, with an average relative humidity of 75%.

In Kaanapali, the average relative humidity in January is 75%.

In Kaanapali, in January, it is raining for 9.9 days, with typically 0.67" (17mm) of accumulated precipitation.

In Kaanapali, in January, the average water temperature is 76.6°F (24.8°C). For individuals prone to feeling cold, swimming in 73.4°F (23°C) is still regarded as intolerable. A wetsuit is not a necessity, but sunshine, wind, and air temperature are essential factors for relishing swimming at 76.6°F (24.8°C).

In January, the average day length is 11h and 2min.

In January, on the first day of the month, sunrise is at 7:03 am and sunset at 5:56 pm. On the last day of the month, sunrise is at 7:03 am and sunset at 6:16 pm HST.

In Kaanapali, the average sunshine duration in January is 8.3h.

January through June, November and December, with an average maximum UV index of 6, are months with the lowest UV index.

In Kaanapali, the average daily maximum UV index in January is 6. A UV Index estimate of 6 to 7 represents a high health risk from unsafe 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

75.4°F

74.8°F

73.9°F

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

12.4mph

11.2mph

12.2mph

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

10.5

9.9

10.3

Average sea temperature

Average daylight

Average sunshine

Average sunshine days

16.8

17.9

Average UV index

Average cloud cover

Average visibility

Average temperature in January
Kaanapali, HI

Average high temperature in January: 74.8°F

The warmest month (with the highest average high temperature) is September (79.7°F).
The month with the lowest average high temperature is February (73.9°F).

Average low temperature in January: 71.6°F

The months with the highest average low temperature are August and October (76.5°F).
The coldest month (with the lowest average low temperature) is March (70.7°F).

Average pressure in January
Kaanapali, 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
Kaanapali, HI

Average wind speed in January: 10.6mph

The windiest month (with the highest average wind speed) is July (13.9mph).
The calmest month (with the lowest average wind speed) is January (10.6mph).

Average humidity in January
Kaanapali, HI

Average humidity in January: 75%

The month with the highest relative humidity is July (77%).
The months with the lowest relative humidity are January, February, March, September and November (75%).

Average rainfall in January
Kaanapali, HI

Average rainfall in January: 0.67"

The wettest month (with the highest rainfall) is March (1.1").
The driest month (with the least rainfall) is July (0.35").

Average rainfall days in January
Kaanapali, HI

Average rainfall days in January: 9.9 days

The month with the highest number of rainy days is March (13.4 days).
The month with the least rainy days is November (7.7 days).

Average sea temperature in January
Kaanapali, HI

Average sea temperature in January: 76.6°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 (76°F).

Average daylight in January /
Average sunshine in January
Kaanapali, 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 18min

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 42min).

Average sunshine days in January
Kaanapali, HI

Average sunshine days in January: 17.9 days

The month with the most sunshine days is October (18.4 days).
The month with the least sunshine days is March (12.6 days).

Average UV index in January
Kaanapali, 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
Kaanapali, HI

Average cloud cover in January: 26

The month with the most cloud cover is March (Cloud cover 35).
The month with the least cloud cover is September (Cloud cover 25).

Average visibility in January
Kaanapali, 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).