Monthly Lake Winnipesaukee water temperature chart
The bar chart below shows the average monthly sea temperatures at Lake Winnipesaukee over the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| °C | 4.5 | 3.2 | 2.8 | 4.6 | 7.2 | 12.7 | 17.1 | 18.3 | 16.6 | 13.1 | 9.6 | 6.8 |
| °F | 40.1 | 37.8 | 37 | 40.3 | 45 | 54.9 | 62.8 | 64.9 | 61.9 | 55.6 | 49.3 | 44.2 |
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 | 2.9 | 1.8 | 1.4 | 3 | 4.9 | 9.7 | 14.9 | 17.1 | 14.6 | 10.2 | 8 | 4.6 |
| Max °C | 6.1 | 4.6 | 4.3 | 6.3 | 9.6 | 15.8 | 19.4 | 19.6 | 18.7 | 16 | 11.3 | 9 |
| Min °F | 38.5 | 36.4 | 35.6 | 38.7 | 42.7 | 51.9 | 60.6 | 63.7 | 59.9 | 52.7 | 47.7 | 42 |
| Max °F | 41.7 | 39.2 | 38.5 | 42 | 47.4 | 58 | 65.1 | 66.2 | 64 | 58.5 | 51 | 46.4 |