Kahului Average Rainfall by Month

This page shows the average precipitation in each month of the year in Kahului, Hawaii. It is based on NOAA data for the years 1991–2020.
What's the Rainiest Month in Kahului?
In Kahului, March has the greatest precipitation of any month. On average, Kahului gets 2.6 inches of precipitation in March.
March is also the month where rain is most common. 32.8% of days in March will have at least some rain.
What's the Driest Month in Kahului?
In Kahului, June has the least precipitation of any month. On average, Kahului gets 0.16 inches of precipitation in June.
June is also the month where rain is least common. 16.0% of days in June will have measurable rain.
Month Precipitation % Chance
January 2.41 in 26.8
February 1.98 in 32.0
March 2.63 in 32.8
April 1.32 in 28.8
May 0.73 in 19.6
June 0.16 in 16.0
July 0.53 in 24.7
August 0.53 in 23.9
September 0.42 in 16.7
October 0.83 in 20.9
November 1.72 in 29.6
December 2.67 in 32.5
Year 15.82 in 25.3
Weather Station Details
Years Station Coordinates
1905–2024 Kahului Airport location
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