December weather forecast
Waikapu, HI

Weather in December

December, the first month of the winter in Waikapu, is still a warm month, with temperature in the range of an average high of 75.7°F (24.3°C) and an average low of 72.9°F (22.7°C).

Temperature

In December, the average high-temperature is practically the same as in November - a still moderately hot 75.7°F (24.3°C). In Waikapu, the average low-temperature is 72.9°F (22.7°C).

Humidity

In Waikapu, the average relative humidity in December is 75%.

Rainfall

The months with the most rainfall in Waikapu are March and December, with an average 0.87" (22mm) of precipitation.

Daylight

The month with the shortest days in Waikapu is December, with an average of 10h and 53min of daylight.
On the first day of the month, sunrise is at 6:46 am and sunset at 5:43 pm. On the last day of December, sunrise is at 7:02 am and sunset at 5:55 pm HST.

Sunshine

With an average of 7h of sunshine, December has the least sunshine of the year.

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 risk from exposure to the Sun's UV rays for the average person.
Note: The average daily UV index of 6 in December transform into the following instructions:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. 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 average humidity in December in Waikapu?

In Waikapu, the average relative humidity in December is 75%.

What is the rainiest month in Waikapu?

The months with the most rainfall in Waikapu, Hawaii, are March and December, with an average 0.87" (22mm) of precipitation.

How much does it rain in Waikapu in December?

In Waikapu, in December, it is raining for 9.2 days, with typically 0.87" (22mm) of accumulated precipitation.

What is the month with the shortest days in Waikapu?

With an average of 10h and 53min of daylight, December has the shortest days of the year in Waikapu.

How many hours of daylight does Waikapu have in December?

The average day length in December in Waikapu is 10h and 53min.

What time are sunrise and sunset in December in Waikapu?

In December, on the first day of the month, sunrise is at 6:46 am and sunset at 5:43 pm. On the last day of the month, in Waikapu, Hawaii, sunrise is at 7:02 am and sunset at 5:55 pm HST.

What is the month with the least sunshine in Waikapu?

December has the least sunshine of the year, with an average of 7h of sunshine.

How many hours of sunshine does Waikapu have in December?

In December, the average sunshine duration is 7h.

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

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

What is the UV index intensity in December in Waikapu?

The average daily maximum UV index in December in Waikapu is 6. A UV Index estimate of 6 to 7 represents a high hazard to health from unsafe exposure to Sun's UV rays.

Average temperature in December
Waikapu, HI

Average temperature in December - Waikapu, HI
  • Average high temperature in December: 75.7°F

The warmest month (with the highest average high temperature) is September (79.9°F).
The month with the lowest average high temperature is February (73.9°F).

  • Average low temperature in December: 72.9°F

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

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Average pressure in December
Waikapu, HI

Average pressure in December - Waikapu, HI
  • Average pressure in December: 29.99"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 December
Waikapu, HI

Average wind speed in December - Waikapu, HI
  • Average wind speed in December: 11.7mph

The windiest month (with the highest average wind speed) is June (13.6mph).
The calmest month (with the lowest average wind speed) is January (10.4mph).

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Average humidity in December
Waikapu, HI

Average humidity in December - Waikapu, HI
  • Average humidity in December: 75%

The months with the highest relative humidity are July and August (76%).
The months with the lowest relative humidity are January and February (74%).

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Average rainfall in December
Waikapu, HI

Average rainfall in December - Waikapu, HI
  • Average rainfall in December: 0.87"

The wettest months (with the highest rainfall) are March and December (0.87").
The driest month (with the least rainfall) is June (0.2").

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Average rainfall days in December
Waikapu, HI

Average rainfall days in December - Waikapu, HI
  • Average rainfall days in December: 9.2 days

The month with the highest number of rainy days is March (11.9 days).
The month with the least rainy days is June (6.6 days).

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Average daylight in December /
Average sunshine in December
Waikapu, HI

Average daylight in December / Average sunshine in December - Waikapu, HI
  • Average daylight in December: 10h and 53min

The month with the longest days is June (Average daylight: 13h and 23min).
The month with the shortest days is December (Average daylight: 10h and 53min).

  • Average sunshine in December: 7h

The month with the most sunshine is June (Average sunshine: 11.5h).
The month with the least sunshine is December (Average sunshine: 7h).

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Average sunshine days in December
Waikapu, HI

Average sunshine days in December - Waikapu, HI
  • Average sunshine days in December: 17.7 days

The month with the most sunshine days is June (19.9 days).
The month with the least sunshine days is March (15.2 days).

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Average UV index in December
Waikapu, HI

Average UV index in December - Waikapu, HI
  • Average UV index in December: 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 December
Waikapu, HI

Average cloud cover in December - Waikapu, HI
  • Average cloud cover in December: 24

The month with the most cloud cover is March (Cloud cover 30).
The months with the least cloud cover are June and September (Cloud cover 21).

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Average visibility in December
Waikapu, HI

Average visibility in December - Waikapu, HI
  • Average visibility in December: 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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