Monthly weather forecast and climate
Hanapepe, HI

Average sea temperature - Hanapepe, HI

The best month for swimming (with the highest average sea temperature) is September (80.5°F).
The coldest month (with the lowest average sea temperature) is March (75.4°F).

Average daylight - Hanapepe, HI

The month with the longest days is June (Average daylight: 13.5h).
The month with shortest days is December (Average daylight: 10.8h).