Weather in September
Ocean temperature
August and September, with an average ocean temperature of 11.8°C (53.2°F), are months with the warmest seawater in Bainbridge Island, Washington.Note: Beware of 11.8°C (53.2°F) waters at 13°C (55.4°F), they're uninviting, and a dip below 10°C (50°F) has risks of breath loss and cold shock, contingent on health.
Daylight
In Bainbridge Island, the average length of the day in September is 12h and 33min.On the first day of September, sunrise is at 6:29 am and sunset at 7:49 pm. On the last day of the month, sunrise is at 7:08 am and sunset at 6:50 pm PDT.
Updated: Jun 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
What months are the ocean warmest in Bainbridge Island?
August and September, with an average ocean temperature of 11.8°C (53.2°F), are months with the warmest seawater.
What is the water temperature in September?
In Bainbridge Island, in September, the average water temperature is 11.8°C (53.2°F). At temperatures below 10°C (50°F), swimming in a suitably protected swimsuit is feasible; otherwise, cold shock and loss of breathing control are imminent. Even a short swim, without thermal protection, at temperatures around 13°C (55.4°F) is not comfortable.
How many hours of daylight does Bainbridge Island have in September?
In Bainbridge Island, the average day length in September is 12h and 33min.
When are sunrise and sunset in September?
On the first day of September, sunrise is at 6:29 am and sunset at 7:49 pm. On the last day of the month, sunrise is at 7:08 am and sunset at 6:50 pm PDT.
Average sea temperature in September
Bainbridge Island, WA
- Average sea temperature in September: 11.8°C
The best months for swimming (with the highest average sea temperature) are August and September (11.8°C).
The coldest month (with the lowest average sea temperature) is February (7.4°C).
Average daylight in September
Bainbridge Island, WA
- Average daylight in September: 12h and 3min
The month with the longest days is June (Average daylight: 15h and 54min).
The month with the shortest days is December (Average daylight: 8h and 30min).
Bainbridge Island, Washington, USA
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