January weather forecast
Captain Cook, HI

Weather in January

January, like December, is an agreeable winter month in Captain Cook, Hawaii, with temperature in the range of an average high of 69.4°F (20.8°C) and an average low of 65.1°F (18.4°C).

Temperature

In Captain Cook, the average high-temperature in January is relatively the same as in December - a still pleasant 69.4°F (20.8°C). In Captain Cook, Hawaii, the average low-temperature is 65.1°F (18.4°C).

Humidity

The average relative humidity in January in Captain Cook is 75%.

Rainfall

January is the month with the least rainfall. Rain falls for 10.8 days and accumulates 0.75" (19mm) of precipitation.

Daylight

The average length of the day in January is 11h and 7min.
On the first day of the month, sunrise is at 6:57 am and sunset at 5:56 pm. On the last day of January, sunrise is at 6:58 am and sunset at 6:15 pm HST.

Sunshine

The average sunshine in January is 9h.

UV index

January through April, November and December, with an average maximum UV index of 5, are months with the lowest UV index in Captain Cook. A UV Index estimate of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The daily maximum UV index of 5 in January interpret into the following advice:
Take precautions. Light skin individuals may get burned in less than 30 minutes. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
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FAQ

What is the temperature in January in Captain Cook?

In Captain Cook, in January, the average high-temperature is 69.4°F (20.8°C), and the average low-temperature is 65.1°F (18.4°C).

What is the average humidity in January in Captain Cook?

The average relative humidity in January in Captain Cook, Hawaii, is 75%.

What is the driest month in Captain Cook?

The month with the least rainfall in Captain Cook, Hawaii, is January, when the rain falls for 10.8 days and typically collects 0.75" (19mm) of precipitation.

How many days does it rain in January in Captain Cook?

In Captain Cook, Hawaii, in January, it is raining for 10.8 days, with typically 0.75" (19mm) of accumulated precipitation.

How many hours of daylight does Captain Cook have in January?

In January, the average day length in Captain Cook, Hawaii, is 11h and 7min.

What time are sunrise and sunset in January in Captain Cook?

On the first day of January in Captain Cook, sunrise is at 6:57 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.

How long on average sun shines in January in Captain Cook?

In January, the average sunshine duration in Captain Cook is 9h.

What is the month with the lowest UV index in Captain Cook?

The months with the lowest UV index are January through April, November and December, with an average maximum UV index of 5.

What is the UV index intensity in January in Captain Cook?

In Captain Cook, the average daily maximum UV index in January is 5. A UV Index value of 3 to 5 symbolizes a medium hazard to health from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in January
Captain Cook, HI

Average temperature in January - Captain Cook, 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).

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Average pressure in January
Captain Cook, HI

Average pressure in January - Captain Cook, 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).

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Average wind speed in January
Captain Cook, HI

Average wind speed in January - Captain Cook, 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).

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Average humidity in January
Captain Cook, HI

Average humidity in January - Captain Cook, 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%).

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Average rainfall in January
Captain Cook, HI

Average rainfall in January - Captain Cook, 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").

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Average rainfall days in January
Captain Cook, HI

Average rainfall days in January - Captain Cook, 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).

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Average daylight in January /
Average sunshine in January
Captain Cook, HI

Average daylight in January / Average sunshine in January - Captain Cook, HI
  • Average daylight in January: 11h and 7min

The month with the longest days is June (Average daylight: 13h and 17min).
The month with the shortest days is December (Average daylight: 10h and 59min).

  • 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).

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Average sunshine days in January
Captain Cook, HI

Average sunshine days in January - Captain Cook, 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).

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Average UV index in January
Captain Cook, HI

Average UV index in January - Captain Cook, 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).

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Average cloud cover in January
Captain Cook, HI

Average cloud cover in January - Captain Cook, 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).

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Average visibility in January
Captain Cook, HI

Average visibility in January - Captain Cook, 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).

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