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Hawaii weather in September 2021
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Below are average maximum temperatures at popular destinations in Hawaii in September. Select a destination to see more weather parameters.
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The September weather guide for Hawaii shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.
How hot is it in Hawaii in September?
Daytime temperatures usually reach 30°C in Honolulu, Oahu, Hawaii in September with high heat and humidity, falling to 22°C at night.
How sunny is it in Hawaii in September?
There are normally 9 hours of bright sunshine each day in Honolulu, Oahu, Hawaii in September - that's 74% of daylight hours.
How warm is the sea around Hawaii in September?
The average sea temperature around Honolulu, Oahu, Hawaii in September is 27°C.
Does it rain in Hawaii in September?
There are usually 8 days with some rain in Honolulu, Oahu, Hawaii in September and the average monthly rainfall is 18mm.
Metric (°C / mm) | Imperial (°F / inches)
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Hawaii sunrise & sunset times for September 2021
Browse the sunrise & sunset times for Hawaii in September 2021. Select a month to view Hawaii sunrise & sunset times for the next twelve months. The Hawaii sunrise & sunset times shown below are for Honolulu, Oahu.
|Date||Sunrise times||Sunset times|
|Wednesday, 1st September 2021||06:15||18:47|
|Wednesday, 15th September 2021||06:19||18:34|
|Thursday, 30th September 2021||06:22||18:20|
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