December weather forecast
Waipio Acres, HI

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Weather in December

December, the first month of the winter in Waipio Acres, is also a moderately hot month, with an average temperature varying between 76.5°F (24.7°C) and 69.4°F (20.8°C).

Temperature

Waipio Acres, Hawaii, greets December with an average high-temperature of a still moderately hot 76.5°F (24.7°C), marking a slight deviation from the preceding month. In Waipio Acres, the month of December records an average minimum temperature of 69.4°F (20.8°C), a slight dip from the daily highs.

Humidity

February and December, with an average relative humidity of 77%, are the most humid months in Waipio Acres, Hawaii.

Rainfall

In Waipio Acres, Hawaii, during December, the rain falls for 18.8 days and regularly aggregates up to 1.97" (50mm) of precipitation. Throughout the year, there are 252.2 rainfall days, and 22.09" (561mm) of precipitation is accumulated.

Daylight

The month with the shortest days is December, with an average of 10h and 54min of daylight.
On the first day of December in Waipio Acres, sunrise is at 6:53 am and sunset at 5:48 pm. On the last day of the month, sunrise is at 7:09 am and sunset at 6:01 pm HST.

Sunshine

In Waipio Acres, the average sunshine in December is 5.7h.

UV index

The months with the lowest UV index in Waipio Acres are January, February and December, with an average maximum UV index of 5. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for average individuals.
Note: An average maximum UV index of 5 in December leads to these recommendations:
Stay alert. Light-skinned people could suffer burns in less than 30 minutes. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. 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.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the average December temperature in Waipio Acres?

The high-temperature, in December, in Waipio Acres, is 76.5°F (24.7°C), while the low-temperature averages to 69.4°F (20.8°C). In October, the average heat index (a.k.a. 'felt air temperature', 'feels like'), which combines relative humidity and air temperature, is computed to be 86°F (30°C).

What are the most humid months in Waipio Acres?

February and December, with an average relative humidity of 77%, are most humid months in Waipio Acres, Hawaii.

What is the average humidity in December in Waipio Acres?

In December, the average relative humidity in Waipio Acres, Hawaii, is 77%.

How many days does it rain in December in Waipio Acres?

In Waipio Acres, Hawaii, in December, during 18.8 rainfall days, 1.97" (50mm) of precipitation is typically accumulated.

What is the month with the shortest days in Waipio Acres?

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

What is the average length of the day in December in Waipio Acres?

The average day length in December in Waipio Acres, Hawaii, is 10h and 51min.

What time are sunrise and sunset in December in Waipio Acres?

In December, on the first day of the month, sunrise is at 6:53 am and sunset at 5:48 pm. On the last day of the month, in Waipio Acres, sunrise is at 7:09 am and sunset at 6:01 pm HST.

How many hours of sunshine does Waipio Acres have in December?

In December, the average sunshine duration in Waipio Acres, Hawaii, is 5.7h.

What are the months with the lowest UV index in Waipio Acres?

The months with the lowest UV index in Waipio Acres are January, February and December, with an average maximum UV index of 5.

How high is the UV index in December in Waipio Acres?

In Waipio Acres, Hawaii, the average daily maximum UV index in December is 5. A UV Index of 3 to 5 symbolizes a medium hazard to health 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 December
Waipio Acres, HI

Average temperature in December - Waipio Acres, HI
  • Average high temperature in December: 76.5°F

The warmest month (with the highest average high temperature) is August (82.6°F).
The month with the lowest average high temperature is February (75.6°F).

  • Average low temperature in December: 69.4°F

The month with the highest average low temperature is September (74.3°F).
The coldest month (with the lowest average low temperature) is February (66.7°F).

Average pressure in December
Waipio Acres, HI

Average pressure in December - Waipio Acres, HI
  • Average pressure in December: 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).

Average wind speed in December
Waipio Acres, HI

Average wind speed in December - Waipio Acres, HI
  • Average wind speed in December: 8.1mph

The windiest months (with the highest average wind speed) are June and July (10.2mph).
The calmest month (with the lowest average wind speed) is October (7.6mph).

Average humidity in December
Waipio Acres, HI

Average humidity in December - Waipio Acres, HI
  • Average humidity in December: 77%

The months with the highest relative humidity are February and December (77%).
The month with the lowest relative humidity is September (73%).

Average rainfall in December
Waipio Acres, HI

Average rainfall in December - Waipio Acres, HI
  • Average rainfall in December: 1.97"

The wettest month (with the highest rainfall) is October (2.6").
The driest month (with the least rainfall) is July (1.26").

Average rainfall days in December
Waipio Acres, HI

Average rainfall days in December - Waipio Acres, HI
  • Average rainfall days in December: 18.8 days

The month with the highest number of rainy days is August (23.8 days).
The month with the least rainy days is January (16 days).

Average daylight in December /
Average sunshine in December
Waipio Acres, HI

Average daylight in December / Average sunshine in December - Waipio Acres, 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: 5h and 4min

The month with the most sunshine is June (Average sunshine: 8h and 24min).
The month with the least sunshine is November (Average sunshine: 5h and 36min).

Average sunshine days in December
Waipio Acres, HI

Average sunshine days in December - Waipio Acres, HI
  • Average sunshine days in December: 7.4 days

The month with the most sunshine days is January (10.8 days).
The month with the least sunshine days is August (3.3 days).

Average UV index in December
Waipio Acres, HI

Average UV index in December - Waipio Acres, HI
  • Average UV index in December: 5

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

Average cloud cover in December
Waipio Acres, HI

Average cloud cover in December - Waipio Acres, HI
  • Average cloud cover in December: 47

The month with the most cloud cover is June (Cloud cover 52).
The month with the least cloud cover is January (Cloud cover 43).

Average visibility in December
Waipio Acres, HI

Average visibility in December - Waipio Acres, 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).

Waipio Acres, Hawaii, USA

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