September weather forecastWaiʻanae, HI
September
Weather in September
An excellent water temperature of 80.6°F (27°C) makes September in Waiʻanae, Hawaii, a prime for swimming and other water activities.Ocean temperature
September is the month with the warmest seawater, with an average ocean temperature of 80.6°F (27°C).Note: For water activities like swimming, diving, and more, temperatures ranging between 77°F (25°C) and 84.2°F (29°C) offer superior comfort and enjoyment for lengthy durations.
Daylight
In September, the average length of the day is 12h and 15min.On the first day of September, sunrise is at 6:16 am and sunset at 6:48 pm. On the last day of the month, sunrise is at 6:23 am and sunset at 6:20 pm HST.
Updated: Feb 10, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
The month with the warmest seawater in Waiʻanae, Hawaii, is September, with an average ocean temperature of 80.6°F (27°C).
In Waiʻanae, Hawaii, the average seawater temperature in September is 80.6°F (27°C). For any water activity, surface water temperatures between 77°F (25°C) and 84.2°F (29°C) are considered as excellent and extremely pleasant for lengthened periods.
The average day length in September in Waiʻanae, Hawaii, is 12h and 15min.
On the first day of September in Waiʻanae, sunrise is at 6:16 am and sunset at 6:48 pm. On the last day of the month, sunrise is at 6:23 am and sunset at 6:20 pm HST.
Average sea temperature in September
Waiʻanae, HI
- Average sea temperature in September: 80.6°F
The best month for swimming (with the highest average sea temperature) is September (80.6°F).
The coldest month (with the lowest average sea temperature) is March (75.7°F).
Average daylight in September
Waiʻanae, HI
- Average daylight in September: 12h and 18min
The month with the longest days is June (Average daylight: 13h and 24min).
The month with the shortest days is December (Average daylight: 10h and 54min).
