December weather forecast
Hauula, HI

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Weather in December

December, the first month of the winter in Hauula, is also a moderately hot month, with an average temperature varying between 71.6°F (22°C) and 76.1°F (24.5°C).

Temperature

December's onset records a minor alteration in the average high-temperature to a still moderately hot 76.1°F (24.5°C) from November's 78.3°F (25.7°C). December nights in Hauula anticipate an average temperature of 71.6°F (22°C), a modest decline from the daytime.

Humidity

December is the most humid month, with an average relative humidity of 77%.

Rainfall

In December, the rain falls for 18.9 days. Throughout December, 1.69" (43mm) of precipitation is accumulated. In Hauula, during the entire year, the rain falls for 215.6 days and collects up to 16.38" (416mm) of precipitation.

Daylight

December has the shortest days of the year in Hauula, with an average of 10h and 48min of daylight.
On the first day of the month, sunrise is at 6:53 am and sunset at 5:48 pm. On the last day of December, sunrise is at 7:09 am and sunset at 6:00 pm HST.

Sunshine

December has the least sunshine of the year in Hauula, with an average of 6h of sunshine.

UV index

The months with the lowest UV index are January through June, August, October through December, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health vulnerability from unsafe exposure to UV radiation for ordinary individuals.
Note: A daily high UV index of 6 in December leads to these guidelines:
Adhere to precautions and respect sun safety doctrines. Avoiding sunburn is vital. Limit your direct sun exposure, especially between 10 a.m. and 4 p.m., when UV radiation is strongest. Shade structures might not provide complete sun protection. Enhance your sun protection with tightly woven, yet airy clothing.
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Frequently asked questions

What are December temperatures in Hauula?

The average high-temperature, in December, in Hauula, is 76.1°F (24.5°C), while the average low-temperature is 71.6°F (22°C). In October, the average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which combines air temperature and relative humidity, is computed to be 86°F (30°C).

What is the most humid month in Hauula?

December is the most humid month in Hauula, with an average relative humidity of 77%.

What is the average humidity in December in Hauula?

The average relative humidity in December is 77%.

How many days does it rain in December in Hauula?

In Hauula, Hawaii, in December, it is raining for 18.9 days, with typically 1.69" (43mm) of accumulated precipitation.

What is the month with the shortest days in Hauula?

December has the shortest days of the year in Hauula, Hawaii, with an average of 10h and 48min of daylight.

How many hours of daylight does Hauula have in December?

In Hauula, the average day length in December is 10h and 50min.

When are sunrise and sunset in December in Hauula?

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 Hauula, sunrise is at 7:09 am and sunset at 6:00 pm HST.

What is the month with the least sunshine in Hauula?

December has the least sunshine of the year, with an average of 6h of sunshine.

How long on average sun shines in December in Hauula?

In December, the average sunshine duration is 6h.

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

The months with the lowest UV index are January through June, August, October through December, with an average maximum UV index of 6.

What is the UV index reading in December in Hauula?

The average daily maximum UV index in December in Hauula is 6. A UV Index of 6 to 7 symbolizes a high health vulnerability 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
Hauula, HI

Average temperature in December - Hauula, HI
  • Average high temperature in December: 76.1°F

The warmest month (with the highest average high temperature) is September (81.3°F).
The month with the lowest average high temperature is February (74.1°F).

  • Average low temperature in December: 71.6°F

The month with the highest average low temperature is September (76.1°F).
The coldest month (with the lowest average low temperature) is February (69.1°F).

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Average pressure in December
Hauula, HI

Average pressure in December - Hauula, HI
  • Average pressure in December: 30"Hg

The month with the highest atmospheric pressure is April (30.06"Hg).
The month with the lowest atmospheric pressure is October (29.97"Hg).

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Average wind speed in December
Hauula, HI

Average wind speed in December - Hauula, HI
  • Average wind speed in December: 11.2mph

The windiest month (with the highest average wind speed) is July (13.4mph).
The calmest month (with the lowest average wind speed) is January (10.2mph).

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Average humidity in December
Hauula, HI

Average humidity in December - Hauula, HI
  • Average humidity in December: 77%

The month with the highest relative humidity is December (77%).
The months with the lowest relative humidity are January, April, May, September and November (75%).

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Average rainfall in December
Hauula, HI

Average rainfall in December - Hauula, HI
  • Average rainfall in December: 1.69"

The wettest month (with the highest rainfall) is March (2.09").
The driest month (with the least rainfall) is July (0.75").

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Average rainfall days in December
Hauula, HI

Average rainfall days in December - Hauula, HI
  • Average rainfall days in December: 18.9 days

The month with the highest number of rainy days is March (21 days).
The month with the least rainy days is January (15.6 days).

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

Average daylight in December / Average sunshine in December - Hauula, 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 48min).

  • Average sunshine in December: 6h and 0min

The month with the most sunshine is June (Average sunshine: 9h and 54min).
The month with the least sunshine is December (Average sunshine: 6h and 0min).

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Average sunshine days in December
Hauula, HI

Average sunshine days in December - Hauula, HI
  • Average sunshine days in December: 6.1 days

The month with the most sunshine days is January (10.1 days).
The month with the least sunshine days is November (3.5 days).

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Average UV index in December
Hauula, HI

Average UV index in December - Hauula, HI
  • Average UV index in December: 6

The months with the highest UV index are July and September (UV index 7).
The months with the lowest UV index are January, February, March, April, May, June, August, October, November and December (UV index 6).

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Average cloud cover in December
Hauula, HI

Average cloud cover in December - Hauula, HI
  • Average cloud cover in December: 42

The month with the most cloud cover is March (Cloud cover 47).
The months with the least cloud cover are January and September (Cloud cover 39).

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Average visibility in December
Hauula, HI

Average visibility in December - Hauula, 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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Hauula, Hawaii, USA

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