Monthly Lake Hartwell water temperature chart
The bar chart below shows the average monthly sea temperatures at Lake Hartwell over the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| °C | 10.4 | 10.1 | 11.1 | 14.6 | 18.6 | 23.8 | 26.9 | 27.3 | 25.7 | 22.1 | 17.2 | 12.7 |
| °F | 50.7 | 50.2 | 52 | 58.3 | 65.5 | 74.8 | 80.4 | 81.1 | 78.3 | 71.8 | 63 | 54.9 |
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 | 8.8 | 8.6 | 9.4 | 12 | 15.4 | 21.3 | 25.7 | 26.5 | 24.2 | 19.1 | 14.6 | 10.8 |
| Max °C | 12.1 | 11.6 | 12.9 | 17.2 | 21.8 | 26.4 | 28.1 | 28.1 | 27.3 | 25.2 | 19.8 | 14.7 |
| Min °F | 49.1 | 48.7 | 50.3 | 55.7 | 62.3 | 72.3 | 79.2 | 80.3 | 76.8 | 68.8 | 60.4 | 53 |
| Max °F | 52.4 | 51.7 | 53.8 | 60.9 | 68.7 | 77.4 | 81.6 | 81.9 | 79.9 | 74.9 | 65.6 | 56.9 |