Monthly St Lucia water temperature chart
The bar chart below shows the average monthly sea temperatures at St Lucia over the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| °C | 26.9 | 26.9 | 26.9 | 25.9 | 24.4 | 23.1 | 22.2 | 21.6 | 22.5 | 22.8 | 23.6 | 25.2 |
| °F | 80.4 | 80.4 | 80.4 | 78.6 | 75.9 | 73.6 | 72 | 70.9 | 72.5 | 73 | 74.5 | 77.4 |
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 | 25.4 | 25.9 | 25.8 | 24.3 | 23.5 | 22.3 | 20.6 | 20.4 | 21.6 | 21.1 | 22.2 | 23.8 |
| Max °C | 28.4 | 28 | 28 | 27.6 | 25.4 | 24 | 23.9 | 22.8 | 23.4 | 24.5 | 25.1 | 26.7 |
| Min °F | 78.9 | 79.4 | 79.3 | 77 | 75 | 72.8 | 70.4 | 69.7 | 71.6 | 71.3 | 73.1 | 76 |
| Max °F | 81.9 | 81.5 | 81.5 | 80.3 | 76.9 | 74.5 | 73.7 | 72.1 | 73.4 | 74.7 | 76 | 78.9 |