December weather forecast
Māhukona, HI

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Weather in December

December, the first month of the winter in Māhukona, is still a warm month, with an average temperature fluctuating between 71.1°F (21.7°C) and 74.8°F (23.8°C).

Temperature

The initiation of December sees an average high-temperature of a still moderately hot 74.8°F (23.8°C), showing minor variations from the previous month. Māhukona encounters a negligible difference from daytime peaks throughout the December nights, with a low-temperature average of 71.1°F (21.7°C).

Humidity

In December, the average relative humidity in Māhukona is 73%.

Rainfall

In Māhukona, in December, it is raining for 9.4 days, with typically 0.67" (17mm) of accumulated precipitation. Throughout the year, in Māhukona, there are 136 rainfall days, and 8.5" (216mm) of precipitation is accumulated.

Daylight

With an average of 10h and 54min of daylight, December has the shortest days of the year in Māhukona, Hawaii.
On the first day of December, sunrise is at 6:42 am and sunset at 5:42 pm. On the last day of the month, sunrise is at 6:58 am and sunset at 5:55 pm HST.

Sunshine

With an average of 7.4h of sunshine, December has the least sunshine of the year.

UV index

The months with the highest UV index are January through December, with an average maximum UV index of 6. January through December, with an average maximum UV index of 6, are months with the lowest UV index. A UV Index value of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV radiation for average individuals.
Note: In December, a daily UV index of 6 turns into the following recommendations:
Employ safeguards and advocate sun safety protocols. Shielding against skin and eye damage is crucial. 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. Tightly woven clothing, when worn loosely, shields effectively against the Sun.
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Frequently asked questions

What are December temperatures in Māhukona?

The high-temperature in Māhukona during December is 74.8°F (23.8°C) and the low-temperature is 71.1°F (21.7°C).

What is the average humidity in December in Māhukona?

The average relative humidity in December is 73%.

How many days does it rain in December in Māhukona?

In Māhukona, in December, during 9.4 rainfall days, 0.67" (17mm) of precipitation is typically accumulated.

What is the month with the shortest days in Māhukona?

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

How many hours of daylight does Māhukona have in December?

In December, the average day length in Māhukona, Hawaii, is 10h and 57min.

When are sunrise and sunset in December in Māhukona?

On the first day of December in Māhukona, sunrise is at 6:42 am and sunset at 5:42 pm. On the last day of the month, sunrise is at 6:58 am and sunset at 5:55 pm HST.

What is the month with the least sunshine in Māhukona?

With an average of 7.4h of sunshine, December has the least sunshine of the year in Māhukona, Hawaii.

How many hours of sunshine does Māhukona have in December?

In Māhukona, Hawaii, the average sunshine duration in December is 7.4h.

What are the months with the highest UV index in Māhukona?

The months with the highest UV index in Māhukona, Hawaii, are January through December, with an average maximum UV index of 6.

When is the lowest UV index in Māhukona?

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

What is the UV index intensity in December in Māhukona?

The average daily maximum UV index in December in Māhukona, Hawaii, is 6. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Māhukona, HI

Average temperature in December - Māhukona, HI
  • Average high temperature in December: 74.8°F

The warmest month (with the highest average high temperature) is August (78.4°F).
The month with the lowest average high temperature is February (73.2°F).

  • Average low temperature in December: 71.1°F

The months with the highest average low temperature are August, September and October (74.8°F).
The coldest month (with the lowest average low temperature) is March (69.4°F).

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Average pressure in December
Māhukona, HI

Average pressure in December - Māhukona, HI
  • Average pressure in December: 29.99"Hg

The month with the highest atmospheric pressure is April (30.04"Hg).
The months with the lowest atmospheric pressure are September and October (29.96"Hg).

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Average wind speed in December
Māhukona, HI

Average wind speed in December - Māhukona, HI
  • Average wind speed in December: 5.5mph

The windiest month (with the highest average wind speed) is February (6.2mph).
The calmest month (with the lowest average wind speed) is July (5mph).

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Average humidity in December
Māhukona, HI

Average humidity in December - Māhukona, HI
  • Average humidity in December: 73%

The months with the highest relative humidity are June, July and August (77%).
The month with the lowest relative humidity is February (71%).

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Average rainfall in December
Māhukona, HI

Average rainfall in December - Māhukona, HI
  • Average rainfall in December: 0.67"

The wettest month (with the highest rainfall) is February (0.98").
The driest month (with the least rainfall) is January (0.47").

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Average rainfall days in December
Māhukona, HI

Average rainfall days in December - Māhukona, HI
  • Average rainfall days in December: 9.4 days

The month with the highest number of rainy days is May (14.4 days).
The month with the least rainy days is February (8.1 days).

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

Average daylight in December / Average sunshine in December - Māhukona, HI
  • Average daylight in December: 10h and 5min

The month with the longest days is June (Average daylight: 13h and 18min).
The month with the shortest days is December (Average daylight: 10h and 54min).

  • Average sunshine in December: 7h and 2min

The month with the most sunshine is June (Average sunshine: 11h and 24min).
The month with the least sunshine is December (Average sunshine: 7h and 24min).

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Average sunshine days in December
Māhukona, HI

Average sunshine days in December - Māhukona, HI
  • Average sunshine days in December: 12.3 days

The month with the most sunshine days is January (14.5 days).
The month with the least sunshine days is October (6.8 days).

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Average UV index in December
Māhukona, HI

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

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

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Average cloud cover in December
Māhukona, HI

Average cloud cover in December - Māhukona, HI
  • Average cloud cover in December: 15

The months with the most cloud cover are April, May and June (Cloud cover 21).
The month with the least cloud cover is January (Cloud cover 12).

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Average visibility in December
Māhukona, HI

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

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