California water temperature in May
| Min (°C/°F) | Avg (°C/°F) | Max (°C/°F) | Current (°C/°F) | |
|---|---|---|---|---|
| Blacks Beach | 15.1 (59.2) | 17.0 (62.6) | 18.9 (66) | 21.2 (70.2) |
| Carlsbad | 15 (59) | 16.8 (62.2) | 18.6 (65.5) | 21.4 (70.5) |
| Coronado | 15.1 (59.2) | 17.0 (62.6) | 18.9 (66) | 20.6 (69) |
| Del Mar | 15.1 (59.2) | 17.0 (62.6) | 18.9 (66) | 21.4 (70.5) |
| Huntington Beach | 15 (59) | 16.8 (62.2) | 18.6 (65.5) | 20.2 (68.3) |
| La Jolla | 15.1 (59.2) | 17.0 (62.6) | 18.9 (66) | 21.4 (70.5) |
| Laguna Beach | 15 (59) | 16.8 (62.2) | 18.6 (65.5) | 20.3 (68.6) |
| Lake Tahoe | 9.3 (48.7) | 10.8 (51.4) | 12.4 (54.2) | 5.3 (41.5) |
| Long Beach | 14.4 (57.9) | 16.1 (61) | 17.8 (64) | 20.5 (69) |
| Los Angeles | 12.7 (54.9) | 13.9 (57) | 15.1 (59.2) | 19.9 (67.8) |
| Malibu | 12.7 (54.9) | 13.9 (57) | 15.1 (59.2) | 19.5 (67.1) |
| Malibu Beach | 12.7 (54.9) | 13.9 (57) | 15.1 (59.2) | 19.6 (67.3) |
| Mission Bay | 15.1 (59.2) | 17.0 (62.6) | 18.9 (66) | 21 (69.8) |
| Monterey | 10.4 (50.6) | 12.3 (54.1) | 14.3 (57.7) | 15.3 (59.6) |
| Newport Beach | 15 (59) | 16.8 (62.2) | 18.6 (65.5) | 20.2 (68.4) |
| Ocean Beach | 9.4 (48.9) | 11.5 (52.7) | 13.6 (56.5) | 13.6 (56.5) |
| Oceanside | 15 (59) | 16.8 (62.2) | 18.6 (65.5) | 21.3 (70.3) |
| San Clemente | 15 (59) | 16.8 (62.2) | 18.6 (65.5) | 20.8 (69.4) |
| San Diego | 15.1 (59.2) | 17.0 (62.6) | 18.9 (66) | 20.5 (68.9) |
| San Francisco | 9.4 (48.9) | 11.5 (52.7) | 13.6 (56.5) | 13.5 (56.4) |
| San Onofre | 15 (59) | 16.8 (62.2) | 18.6 (65.5) | 20.8 (69.5) |
| Santa Barbara | 11.7 (53) | 13.2 (55.8) | 14.8 (58.6) | 15.7 (60.2) |
| Santa Catalina Island | 14.4 (57.9) | 16.1 (61) | 17.8 (64) | 20.5 (69) |
| Santa Cruz | 10.3 (50.5) | 12.4 (54.3) | 14.5 (58.1) | 13.3 (56) |
| Santa Monica | 12.7 (54.9) | 13.9 (57) | 15.1 (59.2) | 20.2 (68.3) |
| Tomales Bay | 9.2 (48.5) | 11.3 (52.3) | 13.5 (56.2) | 11.6 (53) |
| Ventura | 11.7 (53) | 13.2 (55.8) | 14.8 (58.6) | 17.9 (64.2) |