December weather forecast
Waikapu, HI

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Weather in December

The first month of the winter, December, is still a warm month in Waikapu, Hawaii, with an average temperature ranging between min 72.9°F (22.7°C) and max 75.7°F (24.3°C).

Temperature

With the arrival of December, Waikapu's average high-temperature registers at a still moderately hot 75.7°F (24.3°C), indicating a subtle variation from the previous month. Waikapu sees a minor drop to an average minimum temperature of 72.9°F (22.7°C) during the night in the month of December.

Humidity

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

Rainfall

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

Daylight

With an average of 10h and 54min of daylight, December has the shortest days of the year.
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 5:56 pm HST.

Sunshine

The month with the least sunshine is December, with an average of 7h of sunshine.

UV index

The months with the lowest UV index in Waikapu 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 health hazard from unsafe exposure to UV radiation for the average person.
Note: In December, the maximum UV index of 6 suggests this advice:
Guard against overexposure. Protection from sun-induced harm is essential. Limit your exposure to the sun's UV radiation, which is strongest between 10 a.m. and 4 p.m., and note that parasols or canopies may not provide full sun protection. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses.
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Frequently asked questions

What is the average December temperature in Waikapu?

In Waikapu, in December, the average high-temperature is 75.7°F (24.3°C), and the average low-temperature is 72.9°F (22.7°C).

What is the average humidity in December in Waikapu?

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

What is the rainiest month in Waikapu?

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

How much does it rain in Waikapu in December?

In December, the rain falls for 9.2 days. Throughout December, 0.87" (22mm) of precipitation is accumulated.

What is the month with the shortest days in Waikapu?

With an average of 10h and 54min of daylight, December has the shortest days of the year in Waikapu.

What is the average length of the day in December in Waikapu?

In Waikapu, Hawaii, the average day length in December is 10h and 53min.

When is the sunrise / sunset in December in Waikapu?

On the first day of December, sunrise is at 6:46 am and sunset at 5:43 pm. On the last day of the month, sunrise is at 7:02 am and sunset at 5:56 pm HST.

What is the month with the least sunshine in Waikapu?

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

How many hours of sunshine does Waikapu have in December?

The average sunshine duration in December 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 in Waikapu.

How high is the UV index in December in Waikapu?

The average daily maximum UV index in December in Waikapu, Hawaii, is 6. A UV Index estimate of 6 to 7 represents a high health risk 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 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 5min

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 December: 7h and 0min

The month with the most sunshine is June (Average sunshine: 11h and 30min).
The month with the least sunshine is December (Average sunshine: 7h and 0min).

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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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Waikapu, Hawaii, USA

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