In October warmest sea in California is usually observed in the following locations: Fremont, San Jose, Oakland.
Table below shows the average sea water temperature for marine resorts of California in October for the last three years.
| Place name | October 2023 | October 2022 | October 2021 |
|---|---|---|---|
| Fremont | 66.0°F | 64.3°F | 62.7°F |
| San Jose | 65.9°F | 64.2°F | 62.5°F |
| Oakland | 64.7°F | 64.1°F | 63.0°F |
| San Francisco | 63.0°F | 62.7°F | 61.3°F |
| Sausalito | 62.6°F | 62.0°F | 60.7°F |
| Santa Cruz | 59.9°F | 59.0°F | 57.6°F |
| Lake Tahoe | 59.4°F | 61.4°F | 57.4°F |
| Incline Village | 59.3°F | 61.4°F | 57.6°F |
| Monterey | 59.3°F | 58.8°F | 57.6°F |
| Stateline | 59.2°F | 61.2°F | 57.5°F |
| South Lake Tahoe | 59.2°F | 61.2°F | 57.6°F |
| Yosemite | 56.9°F | 56.9°F | 56.9°F |
Charts below show average sea water temperature for California resorts with the warmest sea in October.
You can also check other months of the year to see sea temperature of California resorts at that time.
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