Monthly Lake Michigan water temperature chart
The bar chart below shows the average monthly sea temperatures at Lake Michigan over the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| °C | 3.4 | 2.7 | 2.7 | 3.4 | 4.7 | 11.3 | 19.6 | 21.4 | 19.3 | 12.6 | 8.1 | 4.6 |
| °F | 38.1 | 36.9 | 36.9 | 38.1 | 40.5 | 52.3 | 67.3 | 70.5 | 66.7 | 54.7 | 46.6 | 40.3 |
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 | 2.4 | 1.4 | 1.2 | 2.1 | 2.1 | 4.9 | 14.9 | 19.4 | 16.1 | 9 | 4.6 | 1.7 |
| Max °C | 4.5 | 4 | 4.2 | 4.8 | 7.4 | 17.8 | 24.3 | 23.5 | 22.6 | 16.3 | 11.7 | 7.6 |
| Min °F | 37.1 | 35.6 | 35.4 | 36.8 | 37.9 | 45.9 | 62.6 | 68.5 | 63.5 | 51.1 | 43.1 | 37.4 |
| Max °F | 39.2 | 38.2 | 38.4 | 39.5 | 43.2 | 58.8 | 72 | 72.6 | 70 | 58.4 | 50.2 | 43.3 |