California water temperature in March
| Min (°C/°F) | Avg (°C/°F) | Max (°C/°F) | Current (°C/°F) | |
|---|---|---|---|---|
| Blacks Beach | 13.9 (57) | 15.2 (59.4) | 16.5 (61.7) | 21.4 (70.6) |
| Carlsbad | 13.1 (55.5) | 14.7 (58.5) | 16.4 (61.4) | 21.8 (71.3) |
| Coronado | 13.9 (57) | 15.2 (59.4) | 16.5 (61.7) | 20.4 (68.7) |
| Del Mar | 13.9 (57) | 15.2 (59.4) | 16.5 (61.7) | 21.7 (71.1) |
| Huntington Beach | 13.1 (55.5) | 14.7 (58.5) | 16.4 (61.4) | 20.2 (68.4) |
| La Jolla | 13.9 (57) | 15.2 (59.4) | 16.5 (61.7) | 21.6 (70.8) |
| Laguna Beach | 13.1 (55.5) | 14.7 (58.5) | 16.4 (61.4) | 20.5 (68.9) |
| Lake Tahoe | 9.1 (48.4) | 10.8 (51.4) | 12.5 (54.5) | 5.2 (41.3) |
| Long Beach | 12.5 (54.4) | 14.4 (57.9) | 16.4 (61.4) | 20.4 (68.8) |
| Los Angeles | 11.4 (52.4) | 13.4 (56.1) | 15.5 (59.8) | 20 (68) |
| Malibu | 11.4 (52.4) | 13.4 (56.1) | 15.5 (59.8) | 19.7 (67.5) |
| Malibu Beach | 11.4 (52.4) | 13.4 (56.1) | 15.5 (59.8) | 19.9 (67.8) |
| Mission Bay | 13.9 (57) | 15.2 (59.4) | 16.5 (61.7) | 21 (69.8) |
| Monterey | 10.6 (51.1) | 12.5 (54.5) | 14.4 (57.9) | 14.8 (58.6) |
| Newport Beach | 13.1 (55.5) | 14.7 (58.5) | 16.4 (61.4) | 20.3 (68.6) |
| Ocean Beach | 10.1 (50.1) | 12.1 (53.8) | 14.2 (57.5) | 14.4 (57.9) |
| Oceanside | 13.1 (55.5) | 14.7 (58.5) | 16.4 (61.4) | 21.7 (71) |
| San Clemente | 13.1 (55.5) | 14.7 (58.5) | 16.4 (61.4) | 21 (69.9) |
| San Diego | 13.9 (57) | 15.2 (59.4) | 16.5 (61.7) | 20.3 (68.6) |
| San Francisco | 10.1 (50.1) | 12.1 (53.8) | 14.2 (57.5) | 14.2 (57.6) |
| San Onofre | 13.1 (55.5) | 14.7 (58.5) | 16.4 (61.4) | 21.1 (70) |
| Santa Barbara | 11 (51.8) | 13.2 (55.8) | 15.4 (59.7) | 15.7 (60.3) |
| Santa Catalina Island | 12.5 (54.4) | 14.4 (57.9) | 16.4 (61.4) | 20.4 (68.7) |
| Santa Cruz | 11 (51.7) | 12.6 (54.7) | 14.3 (57.7) | 13 (55.4) |
| Santa Monica | 11.4 (52.4) | 13.4 (56.1) | 15.5 (59.8) | 20.5 (68.9) |
| Tomales Bay | 9.9 (49.8) | 11.7 (53.1) | 13.5 (56.3) | 12.1 (53.9) |
| Ventura | 11 (51.8) | 13.2 (55.8) | 15.4 (59.7) | 17.8 (64) |