California water temperature in September

Average California water temperatures in September (°C/°F)
Min (°C/°F) Avg (°C/°F) Max (°C/°F) Current (°C/°F)
Blacks Beach 17.8 (64) 19.3 (66.7) 20.9 (69.5) 17.4 (63.3)
Carlsbad 17.7 (63.8) 19.3 (66.7) 21 (69.7) 17.5 (63.5)
Coronado 17.8 (64) 19.3 (66.7) 20.9 (69.5) 17.1 (62.8)
Del Mar 17.8 (64) 19.3 (66.7) 20.9 (69.5) 17.5 (63.4)
Huntington Beach 17.7 (63.8) 19.3 (66.7) 21 (69.7) 17.4 (63.4)
La Jolla 17.8 (64) 19.3 (66.7) 20.9 (69.5) 17.4 (63.4)
Laguna Beach 17.7 (63.8) 19.3 (66.7) 21 (69.7) 17.4 (63.4)
Lake Tahoe 12.5 (54.5) 13.8 (56.8) 15.1 (59.2) 6.6 (43.9)
Long Beach 17.3 (63.1) 18.9 (66) 20.6 (69) 17.7 (63.9)
Los Angeles 15.5 (59.8) 17.1 (62.8) 18.8 (65.8) 17.3 (63.2)
Malibu 15.5 (59.8) 17.1 (62.8) 18.8 (65.8) 17 (62.7)
Malibu Beach 15.5 (59.8) 17.1 (62.8) 18.8 (65.8) 17.1 (62.8)
Mission Bay 17.8 (64) 19.3 (66.7) 20.9 (69.5) 17.3 (63.1)
Monterey 13.4 (56.1) 14.5 (58.1) 15.6 (60.1) 14.4 (57.9)
Newport Beach 17.7 (63.8) 19.3 (66.7) 21 (69.7) 17.4 (63.4)
Ocean Beach 12.9 (55.1) 13.8 (56.8) 14.8 (58.6) 12.7 (54.8)
Oceanside 17.7 (63.8) 19.3 (66.7) 21 (69.7) 17.5 (63.5)
San Clemente 17.7 (63.8) 19.3 (66.7) 21 (69.7) 17.6 (63.6)
San Diego 17.8 (64) 19.3 (66.7) 20.9 (69.5) 17.1 (62.8)
San Francisco 12.9 (55.1) 13.8 (56.8) 14.8 (58.6) 12.5 (54.6)
San Onofre 17.7 (63.8) 19.3 (66.7) 21 (69.7) 17.5 (63.5)
Santa Barbara 14.4 (57.9) 16.1 (61) 17.8 (64) 17 (62.5)
Santa Catalina Island 17.3 (63.1) 18.9 (66) 20.6 (69) 17.5 (63.5)
Santa Cruz 13.7 (56.6) 14.7 (58.5) 15.8 (60.4) 14.1 (57.4)
Santa Monica 15.5 (59.8) 17.1 (62.8) 18.8 (65.8) 17.6 (63.7)
Tomales Bay 12.7 (54.8) 13.4 (56.1) 14.2 (57.5) 12.8 (55)
Ventura 14.4 (57.9) 16.1 (61) 17.8 (64) 16.6 (61.8)