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Hawaii Weather

The Hawaiian Island's tropical weather is very consistent throughout the year with only moderate changes in temperature. And when you add to that mix Hawaii's moderate humidity, unchanging (and fragrant) northeasterly trade winds, and infrequent severe storms, well, conditions in Hawaii are most desirable.

There are only 2 seasons really: the summer months (called Kau in Hawaiian) that extend from May to October, and the winter months (Ho'oilo) from November to April.

The average daytime summer temperature at sea level is 85 degrees F. (29.4 C,) while the average daytime winter temperature is 78 degrees (25.6 C). Cooler conditions are common in the upper elevations and winter storms (though rare) do occur.

November through April bring the heaviest rains to Hawaii, however rainfall amounts vary each and every year due to moisture levels, individual island topography and many other variables.

The warm summer rains, though occasionally heavy, are usually brief and localized. Extremely heavy precipitation amounts fall in the upper reaches of the mountains on all of the islands.

For an interesting look at Hawaii precipitation amounts (by island) view this precipitation map.

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Seasonal Temperature Averages:

HIGH TEMPERATURES ( Fahrenheit/Celsius )

(Jan) 79/26 (Feb) 80/26 (Mar) 80/26 (Apr) 85/29

(May) 88/31 (Jun) 89/31 (Jul) 89/31 (Aug) 91/32

(Sep) 88/31 (Oct) 85/29 (Nov) 84/28 (Dec) 81/27

LOW TEMPERATURES ( Fahrenheit/Celsius )

(Jan) 67/19 (Feb) 68/19 (Mar) 65/18 (Apr) 73/22

(May) 75/23 (Jun) 77/24 (Jul) 77/25 (Aug) 77/25

(Sep) 75/23 (Oct) 73/22(Nov) 72/22 (Dec) 66/19

Hawaii Photographs

Sunset at Anaehoomalu Beach, Waikoloa, Hawaii, USA

Sunset at Anaehoomalu Beach...
by Ann Cecil
Buy This at Allposters.com

Hawaii Cities, Counties & Area Codes

City County Area Code
Hilo Hawaii 808
Honolulu Honolulu 808
Kalaupapa Kalawao 808
Kapaa Kauai 808
Wailuku Maui 808

About the Author

John Moen is a cartographer who along with his wife are the orignal founders of worldatlas.com. He and his wife, Chris Woolwine-Moen, produced thousands of award-winning maps that are used all over the world and content that aids students, teachers, travelers and parents with their geography and map questions. Today, it's one of the most popular educational sites on the web.

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This page was last updated on July 10, 2020.