Kaanapali
Hawaii, USA
Long-term weather forecast
Long-term weather forecast
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August 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
August is usually the hottest month of the year, and the rainfall barely goes over 1.2" (30.5mm) in Kaanapali.
The average temperatures are in the 67°F (19.4°C) to 86°F (30°C) range, but whatever the degree of heat, there is always the possibility of a sea breeze blowing in the evening.
Tropical cyclones often blow over the Hawaiian Islands in August, and even though Kaanapali is on the leeward side of the mountains, it falls in the range of an odd cyclone. Skies are mostly clear with a few clouds wandering on the horizon at times.
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  • The average high temperature in August: 28°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 August: 20°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 August: 63mm

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 August: 7 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 August: 26.4°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 August: 13h

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 August: 9h

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 August: 12

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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