Monthly Saint-Louis water temperature chart
The bar chart below shows the average monthly sea temperatures at Saint-Louis over the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| °C | 21.3 | 19.4 | 18.9 | 19.8 | 21.7 | 24.8 | 26.6 | 28.1 | 28.6 | 28.2 | 25.5 | 23.4 |
| °F | 70.3 | 66.9 | 66 | 67.6 | 71.1 | 76.6 | 79.9 | 82.6 | 83.5 | 82.8 | 77.9 | 74.1 |
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 | 18 | 17.4 | 17.5 | 18.1 | 18.6 | 22.5 | 24.5 | 26.3 | 27.8 | 26.9 | 22.5 | 21.4 |
| Max °C | 24.6 | 21.4 | 20.4 | 21.5 | 24.8 | 27.1 | 28.7 | 29.9 | 29.4 | 29.6 | 28.6 | 25.5 |
| Min °F | 67 | 64.9 | 64.6 | 65.9 | 68 | 74.3 | 77.8 | 80.8 | 82.7 | 81.5 | 74.9 | 72.1 |
| Max °F | 73.6 | 68.9 | 67.5 | 69.3 | 74.2 | 78.9 | 82 | 84.4 | 84.3 | 84.2 | 81 | 76.2 |