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

September weather forecast and climate
Hanapepe, HI

An excellent water temperature of 80.4°F (26.9°C) makes September in Hanapepe, Hawaii, a prime for swimming and other water activities.

Ocean temperature

With an average ocean temperature of 80.4°F (26.9°C), September is the month with the warmest seawater.
Note: Water temperature between 77°F (25°C) and 84.2°F (29°C) is regarded as very warm and enjoyable by all. With these temperatures, water activities are pleasurable, without feeling uncomfortable for prolonged periods.

Daylight

In September, the average length of the day is 12.3h.

What is the month with the warmest ocean in Hanapepe?

The month with the warmest seawater in Hanapepe, Hawaii, is September, with an average ocean temperature of 80.4°F (26.9°C).

What is the water temperature in September in Hanapepe?

In Hanapepe, Hawaii, in September, the average water temperature is 80.4°F (26.9°C). For swimming, diving, and other water activities, temperatures between 77°F (25°C) and 84.2°F (29°C) are perceived as very enjoyable and pleasurable for prolonged periods without feeling uncomfortable.

What is the average length of the day in September in Hanapepe?

In September, the average length of the day in Hanapepe, Hawaii, is 12.3h.
Average sea temperature in September - Hanapepe, HI
  • Average sea temperature in September: 80.5°F

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 in September - Hanapepe, HI
  • Average daylight in September: 12.3h

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