Where is the sea coldest in California in October?

East Beach Santa Barbara in United States has the coldest sea in California in October, averaging about 15.0 °C. Butterfly Beach (15.0 °C) and Refugio State Beach are the next coolest.

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

None of the top 25 ranked beaches in California reach 22 °C in October, so a wetsuit is recommended for anything longer than a quick dip.

How are these October sea temperatures calculated?

Each figure is a long-term monthly average sea surface temperature for that location, so it reflects a typical October 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 October

Where the sea is coolest across California during October, ranked by long-term monthly average water temperature. East Beach Santa Barbara (Central California, United States) is the coolest at around 15°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
15°C
October average
2
Butterfly Beach
Central California · United States · Pacific Ocean
Cool — shorty wetsuit recommended
15°C
October average
3
Refugio State Beach
Central California · United States · Pacific Ocean
Cool — shorty wetsuit recommended
15°C
October average
4
Pismo Beach
Central California · United States · Pacific Ocean
Cool — shorty wetsuit recommended
15°C
October average
5
Avila Beach
Central California · United States · Pacific Ocean
Cool — shorty wetsuit recommended
15°C
October average
6
Morro Bay Beach
Central California · United States · Pacific Ocean
Cool — shorty wetsuit recommended
15°C
October average
7
Cayucos Beach
Central California · United States · Pacific Ocean
Cool — shorty wetsuit recommended
15°C
October average
8
Carmel Beach
Central California · United States · Pacific Ocean
Cool — shorty wetsuit recommended
15°C
October average
9
Monterey State Beach
Central California · United States · Pacific Ocean
Cool — shorty wetsuit recommended
15°C
October average
10
Santa Cruz Main Beach
Central California · United States · Pacific Ocean
Cool — shorty wetsuit recommended
15°C
October average
11
Capitola Beach
Central California · United States · Pacific Ocean
Cool — shorty wetsuit recommended
15°C
October average
12
Pfeiffer Beach
Central California · United States · Pacific Ocean
Cool — shorty wetsuit recommended
15°C
October average
13
Stinson Beach
Central California · United States · Pacific Ocean
Cool — shorty wetsuit recommended
15°C
October average
14
Baker Beach
Central California · United States · Pacific Ocean
Cool — shorty wetsuit recommended
15°C
October average
15
Half Moon Bay
Central California · United States · Pacific Ocean
Cool — shorty wetsuit recommended
15°C
October average
16
Carmel River State Beach
Central California · United States · Pacific Ocean
Cool — shorty wetsuit recommended
15°C
October average
17
Moonstone Beach
Central California · United States · Pacific Ocean
Cool — shorty wetsuit recommended
15°C
October average
18
Grover Beach
Central California · United States · Pacific Ocean
Cool — shorty wetsuit recommended
15°C
October average
19
Oceano Dunes
Central California · United States · Pacific Ocean
Cool — shorty wetsuit recommended
15°C
October average
20
Jalama Beach
Central California · United States · Pacific Ocean
Cool — shorty wetsuit recommended
15°C
October average
21
Rincon Beach
Central California · United States · Pacific Ocean
Cool — shorty wetsuit recommended
15°C
October average
22
Silver Strand Beach Ventura
Central California · United States · Pacific Ocean
Cool — shorty wetsuit recommended
15°C
October average
23
Ventura Beach
Central California · United States · Pacific Ocean
Cool — shorty wetsuit recommended
15°C
October average
24
La Conchita Beach
Central California · United States · Pacific Ocean
Cool — shorty wetsuit recommended
15°C
October average
25
Coronado Beach
Southern California · United States · Pacific Ocean
Mild — fine for a swim, cool at first
20°C
October average

Coldest sea in October elsewhere

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California in October — frequently asked questions

Where is the sea coldest in California in October?: East Beach Santa Barbara in United States has the coldest sea in California in October, averaging about 15.0 °C. Butterfly Beach (15.0 °C) and Refugio State Beach are the next coolest.
How many beaches in California are warm enough to swim in October?: None of the top 25 ranked beaches in California reach 22 °C in October, so a wetsuit is recommended for anything longer than a quick dip.
How are these October sea temperatures calculated?: Each figure is a long-term monthly average sea surface temperature for that location, so it reflects a typical October rather than today's reading. Open a beach page for the live water temperature and 7-day forecast.

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