Kaanapali
Hawaii, USA
Long-term weather forecast
Long-term weather forecast
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December weather forecast and Climate
Kaanapali, HI

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Palm trees on green grass overlooking the famous Kaanapali beach in Hawaii, with clear waters under the partially cloudy skies
Palm trees on green grass overlooking the famous Kaanapali beach in Hawaii, with clear waters under the partially cloudy skies
December is the wettest month in Kaanapali with around 4.6" (116.8mm) of rain. The average low temperature is around 63°F (17.2°C) while the average high temperature is about 79°F (26.1°C). It is rare for the temperatures to drop below 60°F (15.6°C) even during a cold wave.
December sees an average of 7 hours of daily sunshine - the skies are cloudy for half of the month but warm and sunny days are also in plenty.
Kaanapali rarely experiences severe cold conditions and is one of the few places in the United States where December does not need warm winter coats.
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  • The average high temperature in December: 26°C

Warmest months (with the highest average high temperature) are July, August, September and October (28°C).
Months with the lowest average high temperature are January, February and March (25°C).

  • The average low temperature in December: 17°C

The month with the highest average low temperature is August (20°C).
Coldest months (with the lowest average low temperature) are January, February and March (16°C).

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  • The average rainfall in December: 166mm

The wettest month (with the highest rainfall) is January (187mm).
The driest month (with the lowest rainfall) is June (47mm).

  • The average rainfall days in December: 12 days

Months with the highest number of rainy days are March and December (12 days).
Months with the lowest number of rainy days are June, August and September (7 days).

  • The average sea temperature in December: 25.1°C

The best month for swimming (with the highest average sea temperature) is September (26.8°C).
The coldest month (with the lowest average sea temperature) is March (24.4°C).

  • The average daylight in December: 11h

Months with the longest days are April, May, June, July and August (Average daylight: 13h).
Months with shortest days are January, February, November and December (Average daylight: 11h).

  • The average sunshine in December: 7h

Months with most sunshine are May, June, July, August and September (Average sunshine: 9h).
Months with least sunshine are January, February, November and December (Average sunshine: 7).

  • The average UV index in December: 6

Months with the highest UV index are June, July and August (UV index 12).
The month with the lowest UV index is December (UV index 6).

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