January weather forecast
Waimanalo, HI

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Weather in January

January, like December, in Waimanalo, Hawaii, is another warm winter month, with an average temperature varying between 75.2°F (24°C) and 71.8°F (22.1°C).

Temperature

Waimanalo's average high-temperature in January is a still moderately hot 75.2°F (24°C), marking an insignificant difference from the 75.9°F (24.4°C) of December. During January, Waimanalo's temperature shows a minor deviation from daytime highs, falling to a steady low-temperature average of 71.8°F (22.1°C).

Humidity

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

Rainfall

In January, the rain falls for 12.6 days. Throughout January, 1.14" (29mm) of precipitation is accumulated. In Waimanalo, during the entire year, the rain falls for 169.9 days and collects up to 13.15" (334mm) of precipitation.

Daylight

The average length of the day in January is 11h and 1min.
On the first day of the month, sunrise is at 7:08 am and sunset at 6:00 pm. On the last day of January, in Waimanalo, sunrise is at 7:08 am and sunset at 6:20 pm HST.

Sunshine

In Waimanalo, the average sunshine in January is 8.7h.

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 of 6 to 7 symbolizes a high threat to health from unprotected exposure to Sun's UV rays for average individuals.
Note: The UV index of 6 in January translates into these instructions:
Act on precautions and pay attention to sun safety recommendations. Avoidance of sunburn is obligatory. UV radiation from the sun is at its strongest between 10 a.m. and 4 p.m. Try to limit direct exposure during these hours. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense.
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Frequently asked questions

What is the average January temperature in Waimanalo?

In January, the average high-temperature and low-temperature are 75.2°F (24°C) and 71.8°F (22.1°C) respectively.

What are the least humid months in Waimanalo?

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

What is the average humidity in January in Waimanalo?

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

How many days does it rain in January in Waimanalo?

In Waimanalo, Hawaii, in January, during 12.6 rainfall days, 1.14" (29mm) of precipitation is typically accumulated.

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

The average day length in January in Waimanalo, Hawaii, is 11h and 1min.

When are sunrise and sunset in January in Waimanalo?

In January, on the first day of the month, sunrise is at 7:08 am and sunset at 6:00 pm. On the last day of the month, in Waimanalo, Hawaii, sunrise is at 7:08 am and sunset at 6:20 pm HST.

How many hours of sunshine does Waimanalo have in January?

The average sunshine duration in January is 8.7h.

What are the months with the lowest UV index in Waimanalo?

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

What is the UV index intensity in January in Waimanalo?

In Waimanalo, Hawaii, 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
Waimanalo, HI

Average temperature in January - Waimanalo, HI
  • Average high temperature in January: 75.2°F

The warmest month (with the highest average high temperature) is September (80.6°F).
The month with the lowest average high temperature is February (74.5°F).

  • Average low temperature in January: 71.8°F

The months with the highest average low temperature are September and October (77°F).
The coldest month (with the lowest average low temperature) is February (70.5°F).

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Average pressure in January
Waimanalo, HI

Average pressure in January - Waimanalo, 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).

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Average wind speed in January
Waimanalo, HI

Average wind speed in January - Waimanalo, HI
  • Average wind speed in January: 10.7mph

The windiest month (with the highest average wind speed) is July (14.1mph).
The calmest month (with the lowest average wind speed) is January (10.7mph).

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Average humidity in January
Waimanalo, HI

Average humidity in January - Waimanalo, HI
  • Average humidity in January: 74%

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

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Average rainfall in January
Waimanalo, HI

Average rainfall in January - Waimanalo, HI
  • Average rainfall in January: 1.14"

The wettest month (with the highest rainfall) is March (1.69").
The driest month (with the least rainfall) is July (0.55").

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Average rainfall days in January
Waimanalo, HI

Average rainfall days in January - Waimanalo, HI
  • Average rainfall days in January: 12.6 days

The month with the highest number of rainy days is March (16.9 days).
The month with the least rainy days is June (11.3 days).

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

Average daylight in January / Average sunshine in January - Waimanalo, 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 4min

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 36min).

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Average sunshine days in January
Waimanalo, HI

Average sunshine days in January - Waimanalo, HI
  • Average sunshine days in January: 12.8 days

The month with the most sunshine days is June (13.6 days).
The months with the least sunshine days are March and November (6.6 days).

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Average UV index in January
Waimanalo, HI

Average UV index in January - Waimanalo, 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).

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Average cloud cover in January
Waimanalo, HI

Average cloud cover in January - Waimanalo, HI
  • Average cloud cover in January: 30

The month with the most cloud cover is March (Cloud cover 36).
The month with the least cloud cover is September (Cloud cover 27).

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Average visibility in January
Waimanalo, HI

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

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