Hawaii weather in May
Averages for 2 places in Hawaii in May, from 30 years of weather data.
Holiday weather in May
Excellent
Best time to visit: January – December
Places in Hawaii in May
Sorted by holiday weather score. Each place links to its own page for May.
| Place | Score | Day | Night | Sea | Sun | Rain days |
|---|---|---|---|---|---|---|
| Kihei, Maui | 97 | 27° | 23° | 25° | 8 h | 4 |
| Honolulu | 93 | 26° | 23° | 25° | 9 h | 9 |
May compared
How the weather changes from April to June. Tap a month to open it.
Hawaii in May: quick answers
Is it warm in Hawaii in May?
Yes, it is warm. Daytime highs average 27 °C (26–27 °C by place) and nights 23 °C.
Can you swim in Hawaii in May?
Yes. The sea is 25 °C, 25 °C on average.
Where is it warmest in Hawaii in May?
The warmest are Kihei, Maui (27 °C) and Honolulu (26 °C).
Does it rain much in Hawaii in May?
Now and then: 7 rainy days on average. Plus 9 hours of sunshine a day.
Is May a good time to visit Hawaii?
Yes, May is one of the best months, with a holiday weather score of 95 out of 100. Best time overall: January – December.
Hawaii month by month
Hawaii: weather by monthWhere to go in MaySea temperature in May
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Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0)