Monthly weather forecast and climate
Seacliff State Beach, CA

Weather in January

In Seacliff State Beach, California, in January, the average water temperature is 54.1°F (12.3°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 January »

Weather in February

In Seacliff State Beach, California, the average seawater temperature in February is 54.1°F (12.3°C). Note: Swimming in 54.1°F (12.3°C) is considered dangerous. Weather in February »

Weather in March

In March, the average ocean temperature in Seacliff State Beach, California, is 54.5°F (12.5°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 March »

Weather in April

With an average ocean temperature of 53.8°F (12.1°C), April is the month with the coldest seawater in Seacliff State Beach, California. 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 April »

Weather in May

In Seacliff State Beach, California, in May, the average water temperature is 54.1°F (12.3°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 May »

Weather in June

In Seacliff State Beach, California, the average seawater temperature in June is 54.3°F (12.4°C). Note: Swimming in 54.3°F (12.4°C) is considered dangerous. Weather in June »

Weather in July

In Seacliff State Beach, California, in July, the average water temperature is 56.8°F (13.8°C). Note: Swimming in 56.8°F (13.8°C) is considered life-threatening. Weather in July »

Weather in August

Months with the warmest seawater in Seacliff State Beach, California, are August and September, with an average ocean temperature of 58.1°F (14.5°C). Note: Swimming in 58.1°F (14.5°C) is considered dangerous. Weather in August »

Weather in September

August and September, with an average ocean temperature of 58.1°F (14.5°C), are months with the warmest seawater in Seacliff State Beach, California. Note: Swimming in 58.1°F (14.5°C) is considered life-threatening. Weather in September »

Weather in October

In October, the average ocean temperature in Seacliff State Beach, California, is 57.7°F (14.3°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 October »

Weather in November

In November, the average ocean temperature in Seacliff State Beach, California, is 56.5°F (13.6°C). Note: Swimming in 56.5°F (13.6°C) is considered dangerous. Weather in November »

Weather in December

In December, the average ocean temperature in Seacliff State Beach, California, is 55.6°F (13.1°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 December »
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FAQ

What month is the ocean coldest in Seacliff State Beach?

The month with the coldest seawater in Seacliff State Beach, California, is April, with an average ocean temperature of 53.8°F (12.1°C).

When are the longest days in Seacliff State Beach?

With an average of 14.7h of daylight, June has the longest days of the year in Seacliff State Beach, California.

When is the ocean warmest in Seacliff State Beach?

August and September, with an average ocean temperature of 58.1°F (14.5°C), are months with the warmest seawater in Seacliff State Beach, California.

What is the month with the shortest days in Seacliff State Beach?

With an average of 9.7h of daylight, December has the shortest days of the year in Seacliff State Beach, California.

Average sea temperature
Seacliff State Beach, CA

Average sea temperature - Seacliff State Beach, CA

The best months for swimming (with the highest average sea temperature) are August and September (58.1°F).
The coldest month (with the lowest average sea temperature) is April (53.8°F).

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Average daylight
Seacliff State Beach, CA

Average daylight - Seacliff State Beach, CA

The month with the longest days is June (Average daylight: 14.7h).
The month with the shortest days is December (Average daylight: 9.7h).

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