Climate and monthly weather forecast
Bainbridge Island, WA

Weather in January

In Bainbridge Island, Washington, the average seawater temperature in January is 45.5°F (7.5°C). Note: At temperatures below 50°F (10°C), swimming in a suitably protected swimsuit is feasible; otherwise, cold shock and loss of breathing control are imminent. Weather in January »

Weather in February

February is the month with the coldest seawater in Bainbridge Island, Washington, with an average ocean temperature of 45.3°F (7.4°C). Note: At temperatures below 50°F (10°C), swimming in a suitably protected swimsuit is feasible; otherwise, cold shock and loss of breathing control are imminent. Weather in February »

Weather in March

In Bainbridge Island, Washington, in March, the average water temperature is 45.7°F (7.6°C). Note: Swimming in 45.7°F (7.6°C) is considered dangerous. Weather in March »

Weather in April

In Bainbridge Island, Washington, in April, the average water temperature is 45.9°F (7.7°C). Note: Swimming in 45.9°F (7.7°C) is considered life-threatening. Weather in April »

Weather in May

In Bainbridge Island, Washington, the average seawater temperature in May is 46.6°F (8.1°C). Note: Swimming in 46.6°F (8.1°C) is considered dangerous. Weather in May »

Weather in June

In June, the average ocean temperature in Bainbridge Island, Washington, is 47.7°F (8.7°C). Note: At temperatures below 50°F (10°C), swimming in a suitably protected swimsuit is feasible; otherwise, cold shock and loss of breathing control are imminent. Weather in June »

Weather in July

In Bainbridge Island, Washington, the average seawater temperature in July is 50.5°F (10.3°C). Note: At temperatures below 50°F (10°C), swimming in a suitably protected swimsuit is feasible; otherwise, cold shock and loss of breathing control are imminent. Weather in July »

Weather in August

August and September, with an average ocean temperature of 53.2°F (11.8°C), are months with the warmest seawater in Bainbridge Island, Washington. Note: Swimming in 53.2°F (11.8°C) is considered dangerous. Weather in August »

Weather in September

August and September, with an average ocean temperature of 53.2°F (11.8°C), are months with the warmest seawater in Bainbridge Island, Washington. Note: Swimming in 53.2°F (11.8°C) is considered dangerous. Weather in September »

Weather in October

In October, the average ocean temperature in Bainbridge Island, Washington, is 50.9°F (10.5°C). Note: Swimming in 50.9°F (10.5°C) is considered life-threatening. Weather in October »

Weather in November

In November, the average ocean temperature in Bainbridge Island, Washington, is 48.6°F (9.2°C). Note: At temperatures below 50°F (10°C), swimming in a suitably protected swimsuit is feasible; otherwise, cold shock and loss of breathing control are imminent. Weather in November »

Weather in December

In December, the average ocean temperature in Bainbridge Island, Washington, is 46.6°F (8.1°C). Note: Swimming in 46.6°F (8.1°C) is considered life-threatening. Weather in December »
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FAQ

What month is the ocean coldest in Bainbridge Island?

February is the month with the coldest seawater in Bainbridge Island, with an average ocean temperature of 45.3°F (7.4°C).

When are the longest days in Bainbridge Island?

With an average of 15.9h of daylight, June has the longest days of the year in Bainbridge Island, Washington.

When is the ocean warmest in Bainbridge Island?

August and September, with an average ocean temperature of 53.2°F (11.8°C), are months with the warmest seawater in Bainbridge Island, Washington.

What is the month with the shortest days in Bainbridge Island?

With an average of 8.5h of daylight, December has the shortest days of the year in Bainbridge Island.

Average sea temperature
Bainbridge Island, WA

Average sea temperature - Bainbridge Island, WA

The best month for swimming (with the highest average sea temperature) is August (53.2°F).
The coldest month (with the lowest average sea temperature) is February (45.3°F).

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Average daylight
Bainbridge Island, WA

Average daylight - Bainbridge Island, WA

The month with the longest days is June (Average daylight: 15.9h).
The month with the shortest days is December (Average daylight: 8.5h).

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