Monthly San Diego water temperature chart
The bar chart below shows the average monthly sea temperatures at San Diego over the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| °C | 15.1 | 14.9 | 15.2 | 15.9 | 17.0 | 18.1 | 19.4 | 19.8 | 19.3 | 18.3 | 17.1 | 15.8 |
| °F | 59.2 | 58.8 | 59.4 | 60.6 | 62.6 | 64.6 | 66.9 | 67.6 | 66.7 | 64.9 | 62.8 | 60.4 |
Monthly average max / min water temperatures
The graph below shows the range of monthly water temperatures over several years.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Min °C | 14 | 14.1 | 13.9 | 15.1 | 15.1 | 16.3 | 17.9 | 18.4 | 17.8 | 16.9 | 16.1 | 14.6 |
| Max °C | 16.2 | 15.8 | 16.5 | 16.8 | 18.9 | 19.9 | 21 | 21.2 | 20.9 | 19.8 | 18.2 | 17.1 |
| Min °F | 58.1 | 58 | 58.1 | 59.8 | 60.7 | 62.8 | 65.4 | 66.2 | 65.2 | 63.5 | 61.8 | 59.2 |
| Max °F | 60.3 | 59.7 | 60.7 | 61.5 | 64.5 | 66.4 | 68.5 | 69 | 68.3 | 66.4 | 63.9 | 61.7 |