Kahului Average Temperature by Month

This page shows the average temperature in each month of the year in Kahului, Hawaii. It is based on NOAA data for the years 1991–2020.
What's the Hottest Month in Kahului?
In Kahului, Hawaii, the warmest month is August, with an average daily high temperature of 88.5 °F and an average low of 72.1 °F.
What's the Coldest Month in Kahului?
In Kahului, Hawaii, the coolest month is January, with an average daily high temperature of 80.9 °F and an average low of 63.3 °F.
Month Avg. High Avg. Low
January 80.9 °F 63.3 °F
February 80.9 °F 63.4 °F
March 81.5 °F 64.7 °F
April 83.2 °F 66.3 °F
May 85.1 °F 67.4 °F
June 86.9 °F 69.9 °F
July 87.7 °F 71.4 °F
August 88.5 °F 72.1 °F
September 88.6 °F 70.9 °F
October 87.5 °F 69.7 °F
November 84.4 °F 68.1 °F
December 82.1 °F 65.5 °F
Year 84.8 °F 67.7 °F
Weather Station Details
Years Station Coordinates
1905–2024 Kahului Airport location
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