Swimming in California in september 2024 Sea temperature by city in september

Do you want to go to the beach in California in september 2024? Is it the right month to go for pleasant temperatures and staying in the water for a long time? The answer is on this page with the sea temperatures in september in California by city and our opinion on the chances of enjoying pleasant sea conditions.

Sea temperature in California in september 2024

Here, find the average sea temperature in California in september in several coastal cities.

Los Angeles

on average:

67°F

min: 64°F / max: 70°F

details

San Francisco

on average:

58°F

min: 56°F / max: 59°F

details

San Diego

on average:

67°F

min: 65°F / max: 70°F

details

Big Sur

on average:

58°F

min: 56°F / max: 60°F

details

Cambria

on average:

59°F

min: 55°F / max: 62°F

details

Carmel-by-the-Sea

Channel Islands National Park

Crescent City

on average:

53°F

min: 48°F / max: 57°F

details

Encinitas

on average:

68°F

min: 65°F / max: 70°F

details

Eureka

on average:

53°F

min: 49°F / max: 57°F

details

Gaviota

on average:

62°F

min: 59°F / max: 65°F

details

Golden Gate National Recreation Area

Gualala

on average:

56°F

min: 54°F / max: 58°F

details

Half Moon Bay

on average:

58°F

min: 56°F / max: 59°F

details

Hollywood

on average:

67°F

min: 64°F / max: 70°F

details

Jenner

on average:

56°F

min: 54°F / max: 58°F

details

Klamath

on average:

53°F

min: 49°F / max: 57°F

details

Malibu

on average:

66°F

min: 63°F / max: 69°F

details

Manhattan Beach

McKinleyville

on average:

53°F

min: 49°F / max: 57°F

details

Where should you go swimming in California in the month of september?

Swimming in California in september is cool (in the best case scenario)

In september in California swimming conditions vary by city. Details below:

Swimming in september in Los Angeles , San Diego, Encinitas, Hollywood, Malibu and Manhattan Beach is possible but the sea is generally cool. So though the sea temperature may sometimes reach 70°F, it can also go as low as 64°F. Note that the average is 67°F.

Swimming in september in Channel Islands National Park and Gaviota is possible... with a wetsuit! Indeed, the water is cold at this time of year with an average temperature of 62°F (min: 58°F/max: 65°F).

Forget about swimming in San Francisco, Big Sur, Cambria, Carmel-by-the-Sea, Crescent City, Eureka, Golden Gate National Recreation Area, Gualala, Half Moon Bay, Jenner, Klamath and McKinleyville in september! The water temperature is freezing, reaching as low as 56°F (and only 59°F at the best of times). Our advice: plan on sightseeing, and don't bring your beach towel!

Where to go swimming in California in september: the map of sea temperatures

ideal swimming pleasant swimming cool swimming cold swimming freezing swimming

Water temperature and seasonal norms in september

Los Angeles

September
Average sea temperature 67°F
Minimum sea temperature 64°F
Maximum sea temperature 70°F
Average outside temperature 79°F
Maximum outside temperature 86°F
Minimum outside temperature 74°F
Precipitation 0.3in
Number of days of precipitation 0 jour(s)
(1%)
Cloud cover 7%
Our opinion cool swimming

More information on swimming in Los Angeles in september

San Francisco

September
Average sea temperature 58°F
Minimum sea temperature 56°F
Maximum sea temperature 59°F
Average outside temperature 70°F
Maximum outside temperature 77°F
Minimum outside temperature 63°F
Precipitation 0.2in
Number of days of precipitation 0 jour(s)
(1%)
Cloud cover 12%
Our opinion freezing swimming

More information on swimming in San Francisco in september

San Diego

September
Average sea temperature 67°F
Minimum sea temperature 65°F
Maximum sea temperature 70°F
Average outside temperature 77°F
Maximum outside temperature 81°F
Minimum outside temperature 74°F
Precipitation 0.7in
Number of days of precipitation 1 jour(s)
(4%)
Cloud cover 9%
Our opinion cool swimming

More information on swimming in San Diego in september

Big Sur

September
Average sea temperature 58°F
Minimum sea temperature 56°F
Maximum sea temperature 60°F
Average outside temperature 67°F
Maximum outside temperature 72°F
Minimum outside temperature 61°F
Precipitation 0.2in
Number of days of precipitation 0 jour(s)
(1%)
Cloud cover 12%
Our opinion freezing swimming

More information on swimming in Big Sur in september

Cambria

September
Average sea temperature 59°F
Minimum sea temperature 55°F
Maximum sea temperature 62°F
Average outside temperature 70°F
Maximum outside temperature 77°F
Minimum outside temperature 65°F
Precipitation 0.3in
Number of days of precipitation 0 jour(s)
(2%)
Cloud cover 7%
Our opinion freezing swimming

More information on swimming in Cambria in september

List of coastal cities in California

Los Angeles in septembercool swimming
San Francisco in septemberfreezing swimming
San Diego in septembercool swimming
Big Sur in septemberfreezing swimming
Cambria in septemberfreezing swimming
Carmel-by-the-Sea in septemberfreezing swimming
Channel Islands National Park in septembercold swimming
Crescent City in septemberfreezing swimming
Encinitas in septembercool swimming
Eureka in septemberfreezing swimming
Gaviota in septembercold swimming
Golden Gate National Recreation Area in septemberfreezing swimming
Gualala in septemberfreezing swimming
Half Moon Bay in septemberfreezing swimming
Hollywood in septembercool swimming
Jenner in septemberfreezing swimming
Klamath in septemberfreezing swimming
Malibu in septembercool swimming
Manhattan Beach in septembercool swimming
McKinleyville in septemberfreezing swimming
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