Haleiwa
Hawaii, USA
Long-term weather forecast
Long-term weather forecast

Monthly weather forecast and climate
Haleiwa, HI

Average sea temperature - Haleiwa, HI

The best month for swimming (with the highest average sea temperature) is September (80.2°F).
The coldest month (with the lowest average sea temperature) is March (75.2°F).

Average daylight - Haleiwa, HI

The month with the longest days is June (Average daylight: 13.4h).
The month with shortest days is December (Average daylight: 10.8h).