January weather forecast
Kapalua, HI

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Weather in January

January's temperatures in Kapalua, Hawaii, remain relatively stable, with notable shifts in weather conditions being a rarity. The start of the year brings relatively consistent evenings, with temperatures averaging around 71.6°F (22°C). Slight shifts in temperatures and climatological conditions as compared to the coming month can be seen. Rainfall shows a significant decrease when moving to the subsequent months. Moreover, January exhibits a relatively lower prevalence of sunshine hours and wind speed in comparison with other months.

Temperature

As Kapalua steps into January, the average high-temperature is measured at a still warm 74.8°F (23.8°C), displaying minor differences from December's 75.4°F (24.1°C). Kapalua, during January nights, records a temperature marginally cooler than the daytime average, at a pleasant 71.6°F (22°C).

Humidity

January through March, September and November, with an average relative humidity of 75%, are the least humid months in Kapalua.

Rainfall

In Kapalua, in January, it is raining for 9.9 days, with typically 0.67" (17mm) of accumulated precipitation. In Kapalua, during the entire year, the rain falls for 112.6 days and collects up to 7.91" (201mm) of precipitation.

Ocean temperature

The months with the coldest seawater are January through April, with an average ocean temperature of 75.2°F (24°C).
Note: Imagine a swim in 75.2°F (24°C) waters. How you'd feel depends on your cold sensitivity, the sun's rays, the caress of the wind, and the warmth enveloping you. Comparatively, Olympic swimmers train in waters between 77°F (25°C) and 82.4°F (28°C).

Daylight

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

Sunshine

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 reading of 6 to 7 represents a high health hazard from unprotected exposure to Sun's UV rays for the ordinary person.
Note: In January, the maximum UV index of 6 translates into these guidelines:
Use protective steps and abide by sun safety guidelines. Safeguarding against skin and eye harm is necessary. UV radiation from the Sun is most intense between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. Stay sun-safe with clothing that is both closely woven and worn loosely. Stay alert! Reflective properties of sand and water amplify the Sun's UV radiation.
Updated: Jun 28, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the usual temperature for Kapalua in January?

In Kapalua, in January, the average high-temperature is 74.8°F (23.8°C), and the average low-temperature is 71.6°F (22°C).

What is the least humid month?

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

What is the average humidity in January in Kapalua?

In January, the average relative humidity is 75%.

How many days does it rain in January?

In Kapalua, in January, during 9.9 rainfall days, 0.67" (17mm) of precipitation is typically accumulated.

What months are the ocean coldest?

January through April, with an average ocean temperature of 75.2°F (24°C), are months with the coldest seawater in Kapalua.

What is the water temperature in January?

In January, the average ocean temperature is 75.2°F (24°C). A person's cold intolerance, with sunshine, wind, and air temperature, are essential factors for enjoying swimming in 75.2°F (24°C) water.

What is the average length of the day in January in Kapalua?

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

When is the sunrise / sunset in January?

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.

How many hours of sunshine does Kapalua have in January?

The average sunshine duration in January is 8.3h.

What is the month with the lowest UV index?

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

What is the UV index reading in January?

The average daily maximum UV index in January is 6. A UV Index reading of 6 to 7 represents a high health threat from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in January
Kapalua, HI

Average temperature in January - Kapalua, 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
Kapalua, HI

Average pressure in January - Kapalua, 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
Kapalua, HI

Average wind speed in January - Kapalua, 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
Kapalua, HI

Average humidity in January - Kapalua, 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
Kapalua, HI

Average rainfall in January - Kapalua, 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
Kapalua, HI

Average rainfall days in January - Kapalua, 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
Kapalua, HI

Average sea temperature in January - Kapalua, HI
  • Average sea temperature in January: 75°F

The best months for swimming (with the highest average sea temperature) are September and October (81°F).
The coldest months (with the lowest average sea temperature) are January, February, March and April (75°F).

Average daylight in January /
Average sunshine in January
Kapalua, HI

Average daylight in January / Average sunshine in January - Kapalua, 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 2min

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
Kapalua, HI

Average sunshine days in January - Kapalua, 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
Kapalua, HI

Average UV index in January - Kapalua, 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
Kapalua, HI

Average cloud cover in January - Kapalua, 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
Kapalua, HI

Average visibility in January - Kapalua, 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).

Kapalua, Hawaii, USA

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