Honolulu, Hawaii weather in March

Averages from 2021–2025 (155 days of record).

Average high: 78°F
Average low: 69°F
Rainy days: ~14 per month
Total precipitation: 2.3 in
Warmest recorded: 84°F
Coldest recorded: 62°F

Expect March days in Honolulu, Hawaii to top out around 78°F and cool to about 69°F overnight, with roughly 14 days of measurable rain across the month. In recent years March has ranged from 62°F to 84°F.

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Current Honolulu, Hawaii forecast → · Historical data by Open-Meteo (ERA5).