Honolulu, Hawaii weather in January

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

Average high: 78°F
Average low: 68°F
Rainy days: ~10 per month
Total precipitation: 2.8 in
Warmest recorded: 83°F
Coldest recorded: 58°F

Expect January days in Honolulu, Hawaii to top out around 78°F and cool to about 68°F overnight, with roughly 10 days of measurable rain across the month. In recent years January has ranged from 58°F to 83°F.

Other months

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