January weather forecast
Papaikou, HI

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Weather in January

January, like December, is an agreeable winter month in Papaikou, Hawaii, with an average temperature varying between 70.9°F (21.6°C) and 64.8°F (18.2°C).

Temperature

Papaikou observes a minor difference in average high-temperatures between December's 71.6°F (22°C) and January's 70.9°F (21.6°C). The January nights in Papaikou show a slight decrease to a mean low-temperature of 64.8°F (18.2°C).

Humidity

The months with the lowest humidity in Papaikou are January, May through July, with an average relative humidity of 78%.

Rainfall

In Papaikou, during January, the rain falls for 13.3 days and regularly aggregates up to 2.72" (69mm) of precipitation. Throughout the year, in Papaikou, there are 227.7 rainfall days, and 27.83" (707mm) of precipitation is accumulated.

Ocean temperature

In January, the average ocean temperature in Papaikou is 76.6°F (24.8°C).
Note: For someone not comfortable with cold, swimming in 76.6°F (24.8°C) waters might be a stretch. However, with favorable conditions like abundant sunshine, mild wind, and warm air temperatures, the experience can be improved. And while wetsuits are not a must, they can be considered.

Daylight

In Papaikou, Hawaii, the average length of the day in January is 11h and 6min.
On the first day of the month, sunrise is at 6:55 am and sunset at 5:52 pm. On the last day of January, in Papaikou, sunrise is at 6:55 am and sunset at 6:11 pm HST.

Sunshine

The average sunshine in January is 7.9h.

UV index

January through April, with an average maximum UV index of 5, are months with the lowest UV index in Papaikou. A UV Index estimate of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for average individuals.
Note: The maximum UV index of 5 during January leads to these instructions:
Guard yourself - Avoiding sunburn is suggested. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage. Note! The Sun's UV radiation gets intensified with the reflection from sand and water.
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Frequently asked questions

What is the usual temperature for Papaikou in January?

An average high-temperature, in January, in Papaikou, is 70.9°F (21.6°C) and the average low-temperature is 64.8°F (18.2°C).

What is the least humid month in Papaikou?

The months with the lowest humidity in Papaikou are January, May through July, with an average relative humidity of 78%.

What is the average humidity in January in Papaikou?

In January, the average relative humidity in Papaikou is 78%.

How much does it rain in Papaikou in January?

In Papaikou, during January, the rain falls for 13.3 days and regularly aggregates up to 2.72" (69mm) of precipitation.

What is the ocean temperature in January in Papaikou?

In January, the average ocean temperature is 76.6°F (24.8°C). A person's cold intolerance, with sunshine, wind, and air temperature, are essential factors for enjoying swimming in 76.6°F (24.8°C) water.

How many hours of daylight does Papaikou have in January?

In Papaikou, Hawaii, the average day length in January is 11h and 6min.

What time are sunrise and sunset in January in Papaikou?

On the first day of January, sunrise is at 6:55 am and sunset at 5:52 pm. On the last day of the month, sunrise is at 6:55 am and sunset at 6:11 pm HST.

How many hours of sunshine does Papaikou have in January?

In January, the average sunshine duration is 7.9h.

What is the month with the lowest UV index in Papaikou?

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

What is the UV index reading in January in Papaikou?

The average daily maximum UV index in January in Papaikou is 5. A UV Index estimate of 3 to 5 represents a moderate health threat from unsafe 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
Papaikou, HI

Average temperature in January - Papaikou, HI
  • Average high temperature in January: 70.9°F

The warmest month (with the highest average high temperature) is August (75.4°F).
The month with the lowest average high temperature is March (69.6°F).

  • Average low temperature in January: 64.8°F

The month with the highest average low temperature is September (70°F).
The coldest month (with the lowest average low temperature) is March (64°F).

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Average pressure in January
Papaikou, HI

Average pressure in January - Papaikou, HI
  • Average pressure in January: 30"Hg

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

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Average wind speed in January
Papaikou, HI

Average wind speed in January - Papaikou, HI
  • Average wind speed in January: 7mph

The windiest month (with the highest average wind speed) is August (7.6mph).
The calmest month (with the lowest average wind speed) is October (6.7mph).

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Average humidity in January
Papaikou, HI

Average humidity in January - Papaikou, HI
  • Average humidity in January: 78%

The month with the highest relative humidity is March (80%).
The months with the lowest relative humidity are January, May, June and July (78%).

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Average rainfall in January
Papaikou, HI

Average rainfall in January - Papaikou, HI
  • Average rainfall in January: 2.72"

The wettest month (with the highest rainfall) is February (3.78").
The driest month (with the least rainfall) is June (1.1").

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Average rainfall days in January
Papaikou, HI

Average rainfall days in January - Papaikou, HI
  • Average rainfall days in January: 13.3 days

The month with the highest number of rainy days is March (22.9 days).
The month with the least rainy days is January (13.3 days).

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Average sea temperature in January
Papaikou, HI

Average sea temperature in January - Papaikou, HI
  • Average sea temperature in January: 76.5°F

The best month for swimming (with the highest average sea temperature) is September (79.3°F).
The coldest month (with the lowest average sea temperature) is March (75.7°F).

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

Average daylight in January / Average sunshine in January - Papaikou, 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: 7h and 5min

The month with the most sunshine is June (Average sunshine: 10h and 54min).
The month with the least sunshine is December (Average sunshine: 6h and 30min).

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Average sunshine days in January
Papaikou, HI

Average sunshine days in January - Papaikou, HI
  • Average sunshine days in January: 12.1 days

The month with the most sunshine days is January (12.1 days).
The month with the least sunshine days is August (1.8 days).

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Average UV index in January
Papaikou, HI

Average UV index in January - Papaikou, HI
  • Average UV index in January: 5

The months with the highest UV index are May, June, July, August, September, October, November and December (UV index 6).
The months with the lowest UV index are January, February, March and April (UV index 5).

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Average cloud cover in January
Papaikou, HI

Average cloud cover in January - Papaikou, HI
  • Average cloud cover in January: 26

The month with the most cloud cover is March (Cloud cover 42).
The month with the least cloud cover is January (Cloud cover 26).

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Average visibility in January
Papaikou, HI

Average visibility in January - Papaikou, 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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Papaikou, Hawaii, USA

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