Monthly Chepstow water temperature chart
The bar chart below shows the average monthly sea temperatures at Chepstow over the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| °C | 8.8 | 8.4 | 8.2 | 9.5 | 11.2 | 13.4 | 15.4 | 16.5 | 16.4 | 15.3 | 13.3 | 10.9 |
| °F | 47.8 | 47.1 | 46.8 | 49.1 | 52.2 | 56.1 | 59.7 | 61.7 | 61.5 | 59.5 | 55.9 | 51.6 |
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 | 7.1 | 7.1 | 7.2 | 8.1 | 10.1 | 12 | 14 | 15.9 | 15.5 | 14.2 | 11.9 | 9.4 |
| Max °C | 10.5 | 9.8 | 9.3 | 10.9 | 12.3 | 14.9 | 16.8 | 17.2 | 17.3 | 16.5 | 14.7 | 12.4 |
| Min °F | 46.1 | 45.8 | 45.8 | 47.7 | 51.1 | 54.7 | 58.3 | 61.1 | 60.6 | 58.4 | 54.5 | 50.1 |
| Max °F | 49.5 | 48.5 | 47.9 | 50.5 | 53.3 | 57.6 | 61.1 | 62.4 | 62.4 | 60.7 | 57.3 | 53.1 |