Lake Michigan water temperature
Lake Michigan, Mackinaw City · Lake
The current water temperature at Lake Michigan is 11.7 °C (as of November 6, 2026, source: NOAA CO-OPS).
Lakes stratify in summer: bathing-warm on top, markedly colder a few metres down. Measurements are taken at the surface — right where you swim.
Measurement series & statistics
This measurement series includes 1169 data points since September 7, 2026.
Lowest recorded value: 10.6 °C on October 18, 2026 · highest value: 20.6 °C on September 8, 2026.
In November, temperatures have ranged between 11.1 °C and 13.4 °C.
The current value is 0.5 °C below the November average of this series.
Nearby waters
More measuring points: Lake Michigan
Frequently asked questions
Can you swim at Lake Michigan right now?
The current water temperature is 11.7 °C. See live swimming conditions, weather and quality in the BrrChecker app.
How warm is the water at Lake Michigan?
Currently 11.7 °C (updated continuously).
How warm is at Lake Michigan in November?
In November, the water temperature recently averaged 12.2 °C.
When is the water warmest at Lake Michigan?
Across the measurement record, September is on average the warmest month (17.3 °C).
