Hawaii weather in May 2021

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Below are average maximum temperatures at popular destinations in Hawaii in May. Select a destination to see more weather parameters.

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The May 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.

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How hot is it in Hawaii in May?

Daytime temperatures usually reach 28°C in Honolulu, Oahu, Hawaii in May with moderate heat and humidity, falling to 20°C at night.

How sunny is it in Hawaii in May?

There are normally 9 hours of bright sunshine each day in Honolulu, Oahu, Hawaii in May - that's 67% of daylight hours.

How warm is the sea around Hawaii in May?

The average sea temperature around Honolulu, Oahu, Hawaii in May is 25°C.

Does it rain in Hawaii in May?

There are usually 8 days with some rain in Honolulu, Oahu, Hawaii in May and the average monthly rainfall is 16mm.

Metric (°C / mm)  |  Imperial (°F / inches)

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Hawaii sunrise & sunset times for May 2021

Browse the sunrise & sunset times for Hawaii in May 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.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Saturday, 1st May 2021 06:00 18:57
Sunday, 16th May 2021 05:53 19:03
Monday, 31st May 2021 05:49 19:10
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