2017 Long Range Weather Forecast for Kahului, HI


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Complete 2017 Long Range Weather Forecast for the Hawaii Region, November 2016 to October 2017 includes week-by-week details. Instant access via digital download!

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How to Read Long-Range Weather Forecasts

Long-range predictions show weather trends in temperatures and precipitation. For example, will the winter be colder or warmer than average? Will there be more or less snow than what's typical for your area?  Our famous predictions (traditionally 80% accurate) are made 18 months in advance, and meant to help you make more informed decisions for long-term planning.

Here on Almanac.com, we provide free long-range forecasts for the next 30 to 60 days covering U.S. and Canadian regions. Find all 12 months of predictions in the annual Old Farmer's Almanac.

Free 2-Month Weather Forecast

APRIL 2017: temperature 76° (0.5° above avg.); precipitation 3.7" (avg. E, 6" above W); Apr 1-10: Showers and heavier t-storms, warm; Apr 11-21: Showers and t-storms E, a few showers C+W; turning cool; Apr 22-30: Showers E, isolated showers C+W; cool E, warm W..

MAY 2017: temperature 77.5° (0.5° above avg.); precipitation 0.3" (0.4" below avg.); May 1-10: A few showers E, isolated showers C+W; warm; May 11-15: Showers, cool E; sunny, warm C+W. 16-26 A few showers, warm; May 27-31: Scattered showers, cool.

Annual Weather Summary: November 2016 to October 2017

Winter season temperatures will be below normal, on average, with the coolest periods in mid-December, early and mid- to late January, and mid- and late February. Rainfall will be below normal from Kauai eastward to Oahu and above normal farther east.

April and May will be slightly warmer than normal, with rainfall a bit below normal on the Big Island and above normal elsewhere.

Summer temperatures will be slightly cooler than normal, on average, with rainfall below normal on the Big Island and Maui and above normal elsewhere. The warmest periods will be in late July and early to mid- and mid- to late August.

September and October temperatures will be slightly cooler than normal, with near-normal rainfall.

KEY: East (E), Central (C), West (W)

NOTE: Note: Temperature and rainfall amounts vary substantially based upon topography and proximity to the ocean

About the Hawaii Region

The Hawaii long range weather region includes all or part of the following states: HAWAII (Hilo, Honolulu, Kahului, Pearl City, Waipahu).

Hawaii Neighboring Regions

Here are the regions that neighbor the Hawaii long range weather region:

    Temperature and Precipitation November 2016 to October 2017

    Temperature and Precipitation Graph