Where is the sea coldest in California in August?

East Beach Santa Barbara in United States has the coldest sea in California in August, averaging about 16.0 °C. Butterfly Beach (16.0 °C) and Refugio State Beach are the next coolest.

How many beaches in California are warm enough to swim in August?

1 of the top 25 ranked beaches in California average 22 °C or more in August, which most swimmers find comfortable without a wetsuit.

How are these August sea temperatures calculated?

Each figure is a long-term monthly average sea surface temperature for that location, so it reflects a typical August rather than today's reading. Open a beach page for the live water temperature and 7-day forecast.

Seasonal ranking

Coldest sea temperature in California in August

Where the sea is coolest across California during August, ranked by long-term monthly average water temperature. East Beach Santa Barbara (Central California, United States) is the coolest at around 16°C. Open any spot for today's live water temperature and a 7-day swim forecast.

1
East Beach Santa Barbara
Central California · United States · Pacific Ocean
Cool — shorty wetsuit recommended
16°C
August average
2
Butterfly Beach
Central California · United States · Pacific Ocean
Cool — shorty wetsuit recommended
16°C
August average
3
Refugio State Beach
Central California · United States · Pacific Ocean
Cool — shorty wetsuit recommended
16°C
August average
4
Pismo Beach
Central California · United States · Pacific Ocean
Cool — shorty wetsuit recommended
16°C
August average
5
Avila Beach
Central California · United States · Pacific Ocean
Cool — shorty wetsuit recommended
16°C
August average
6
Morro Bay Beach
Central California · United States · Pacific Ocean
Cool — shorty wetsuit recommended
16°C
August average
7
Cayucos Beach
Central California · United States · Pacific Ocean
Cool — shorty wetsuit recommended
16°C
August average
8
Carmel Beach
Central California · United States · Pacific Ocean
Cool — shorty wetsuit recommended
16°C
August average
9
Monterey State Beach
Central California · United States · Pacific Ocean
Cool — shorty wetsuit recommended
16°C
August average
10
Santa Cruz Main Beach
Central California · United States · Pacific Ocean
Cool — shorty wetsuit recommended
16°C
August average
11
Capitola Beach
Central California · United States · Pacific Ocean
Cool — shorty wetsuit recommended
16°C
August average
12
Pfeiffer Beach
Central California · United States · Pacific Ocean
Cool — shorty wetsuit recommended
16°C
August average
13
Stinson Beach
Central California · United States · Pacific Ocean
Cool — shorty wetsuit recommended
16°C
August average
14
Baker Beach
Central California · United States · Pacific Ocean
Cool — shorty wetsuit recommended
16°C
August average
15
Half Moon Bay
Central California · United States · Pacific Ocean
Cool — shorty wetsuit recommended
16°C
August average
16
Carmel River State Beach
Central California · United States · Pacific Ocean
Cool — shorty wetsuit recommended
16°C
August average
17
Moonstone Beach
Central California · United States · Pacific Ocean
Cool — shorty wetsuit recommended
16°C
August average
18
Grover Beach
Central California · United States · Pacific Ocean
Cool — shorty wetsuit recommended
16°C
August average
19
Oceano Dunes
Central California · United States · Pacific Ocean
Cool — shorty wetsuit recommended
16°C
August average
20
Jalama Beach
Central California · United States · Pacific Ocean
Cool — shorty wetsuit recommended
16°C
August average
21
Rincon Beach
Central California · United States · Pacific Ocean
Cool — shorty wetsuit recommended
16°C
August average
22
Silver Strand Beach Ventura
Central California · United States · Pacific Ocean
Cool — shorty wetsuit recommended
16°C
August average
23
Ventura Beach
Central California · United States · Pacific Ocean
Cool — shorty wetsuit recommended
16°C
August average
24
La Conchita Beach
Central California · United States · Pacific Ocean
Cool — shorty wetsuit recommended
16°C
August average
25
Coronado Beach
Southern California · United States · Pacific Ocean
Pleasant — swimmable without a wetsuit
22°C
August average

Coldest sea in August elsewhere

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California in August — frequently asked questions

Where is the sea coldest in California in August?: East Beach Santa Barbara in United States has the coldest sea in California in August, averaging about 16.0 °C. Butterfly Beach (16.0 °C) and Refugio State Beach are the next coolest.
How many beaches in California are warm enough to swim in August?: 1 of the top 25 ranked beaches in California average 22 °C or more in August, which most swimmers find comfortable without a wetsuit.
How are these August sea temperatures calculated?: Each figure is a long-term monthly average sea surface temperature for that location, so it reflects a typical August rather than today's reading. Open a beach page for the live water temperature and 7-day forecast.

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