In December warmest sea in California is usually observed in the following locations: Monterey, Santa Cruz, Fremont.
Table below shows the average sea water temperature for marine resorts of California in December for the last three years.
| Place name | December 2024 | December 2023 | December 2022 |
|---|---|---|---|
| Monterey | 54.7°F | 57.9°F | 54.5°F |
| Santa Cruz | 54.6°F | 57.4°F | 53.4°F |
| Fremont | 54.0°F | 55.3°F | 52.6°F |
| San Jose | 53.9°F | 55.3°F | 52.6°F |
| Oakland | 53.7°F | 55.2°F | 51.9°F |
| San Francisco | 53.6°F | 55.6°F | 52.2°F |
| Sausalito | 53.3°F | 55.3°F | 51.9°F |
| Incline Village | 45.8°F | 46.3°F | 46.0°F |
| Lake Tahoe | 45.7°F | 46.2°F | 46.2°F |
| Stateline | 45.5°F | 46.3°F | 46.3°F |
| Yosemite | 45.5°F | 44.3°F | 44.3°F |
| South Lake Tahoe | 45.3°F | 46.3°F | 46.3°F |
Charts below show average sea water temperature for California resorts with the warmest sea in December.
You can also check other months of the year to see sea temperature of California resorts at that time.
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