Weather

Because Hawaii isn’t one small geographic area, it’s hard to pinpoint a good list of average temperatures for all the different islands and cities. You’ll be pleased to know, however, that Hawaii’s weather is pretty consistent throughout the year - in fact, even though the islands are said to have only two seasons, even they don’t differ too much. Summer is said to last from May to October, and Winter from November to April. Summer daytime temperatures average around 85F, and Winter temperatures average around 78F. So you may not even notice what season it is anyway.

Two important things to consider when thinking about what the weather will be like in Hawaii are the winds and the elevation. Depending on what part of an island you’re on, you could be getting the full effect of the winds that carry the most moisture, or you could be on the opposite side where it’s predominantly dry. “Windward” refers to the areas which face those winds, and “leeward” refers to the areas which face away from the winds. The other winds to be conscious of are the trade winds, which can produce a cooling breeze even during the hottest periods - or bring hot and stormy weather from the other direction.

As with any other place, elevation change will cause the temperature to change, so if you’re planning to do anything besides lie on a beach at ocean level for your entire trip, you’ll want to be aware of the different weather conditions on the volcanoes or in the canyons. As you’re going up the mountains, the temperature can drop significantly and the sun’s rays are more intense, so be prepared with proper clothing and sunscreen. Conversely, in the various canyons you might explore in Hawaii, the temperature can increase dramatically as you descend.

For reference, here are the average temperatures and precipitation for the state capital, Honolulu.

Month	Average High (F)	Average Low (F)	Avg. Precip. (inches)
January	80	65	3.6
February	80	65	2.3
March	81	67	2.3
April	82	68	1.5
May	84	70	1.1
June	86	72	0.5
July	87	74	0.6
August	88	74	0.4
September	88	74	0.8
October	86	72	2.3
November	84	70	3.0
December	81	66	3.8

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