California water temperature in August
| Min (°C/°F) | Avg (°C/°F) | Max (°C/°F) | Current (°C/°F) | |
|---|---|---|---|---|
| Blacks Beach | 18.4 (65.1) | 19.8 (67.6) | 21.2 (70.2) | 21.2 (70.2) |
| Carlsbad | 18.6 (65.4) | 19.8 (67.6) | 21.1 (69.9) | 21.4 (70.5) |
| Coronado | 18.4 (65.1) | 19.8 (67.6) | 21.2 (70.2) | 20.6 (69) |
| Del Mar | 18.4 (65.1) | 19.8 (67.6) | 21.2 (70.2) | 21.4 (70.5) |
| Huntington Beach | 18.6 (65.4) | 19.8 (67.6) | 21.1 (69.9) | 20.2 (68.3) |
| La Jolla | 18.4 (65.1) | 19.8 (67.6) | 21.2 (70.2) | 21.4 (70.5) |
| Laguna Beach | 18.6 (65.4) | 19.8 (67.6) | 21.1 (69.9) | 20.3 (68.6) |
| Lake Tahoe | 12.7 (54.9) | 14.1 (57.4) | 15.5 (59.9) | 5.3 (41.5) |
| Long Beach | 18.1 (64.5) | 19.4 (66.9) | 20.8 (69.4) | 20.5 (69) |
| Los Angeles | 16.1 (60.9) | 17.6 (63.7) | 19.2 (66.5) | 19.9 (67.8) |
| Malibu | 16.1 (60.9) | 17.6 (63.7) | 19.2 (66.5) | 19.5 (67.1) |
| Malibu Beach | 16.1 (60.9) | 17.6 (63.7) | 19.2 (66.5) | 19.6 (67.3) |
| Mission Bay | 18.4 (65.1) | 19.8 (67.6) | 21.2 (70.2) | 21 (69.8) |
| Monterey | 13.1 (55.6) | 14.5 (58.1) | 15.9 (60.6) | 15.3 (59.6) |
| Newport Beach | 18.6 (65.4) | 19.8 (67.6) | 21.1 (69.9) | 20.2 (68.4) |
| Ocean Beach | 12 (53.6) | 13.4 (56.1) | 14.8 (58.6) | 13.6 (56.5) |
| Oceanside | 18.6 (65.4) | 19.8 (67.6) | 21.1 (69.9) | 21.3 (70.3) |
| San Clemente | 18.6 (65.4) | 19.8 (67.6) | 21.1 (69.9) | 20.8 (69.4) |
| San Diego | 18.4 (65.1) | 19.8 (67.6) | 21.2 (70.2) | 20.5 (68.9) |
| San Francisco | 12 (53.6) | 13.4 (56.1) | 14.8 (58.6) | 13.5 (56.4) |
| San Onofre | 18.6 (65.4) | 19.8 (67.6) | 21.1 (69.9) | 20.8 (69.5) |
| Santa Barbara | 15 (58.9) | 16.6 (61.9) | 18.3 (64.9) | 15.7 (60.2) |
| Santa Catalina Island | 18.1 (64.5) | 19.4 (66.9) | 20.8 (69.4) | 20.5 (69) |
| Santa Cruz | 13.2 (55.8) | 14.4 (57.9) | 15.6 (60.1) | 13.3 (56) |
| Santa Monica | 16.1 (60.9) | 17.6 (63.7) | 19.2 (66.5) | 20.2 (68.3) |
| Tomales Bay | 11.9 (53.3) | 13.1 (55.6) | 14.4 (57.8) | 11.6 (53) |
| Ventura | 15 (58.9) | 16.6 (61.9) | 18.3 (64.9) | 17.9 (64.2) |