Saint Ignace Water Temperature

(Today) 2024

11.9°C / 53.4°F

The water will feel cool (fresh). Probably too cold for all but seasoned swimmers. We'd recommend a 4mm or 5mm wetsuit if you want to stay in the water.

*Live data from Mackinaw City, MI: 12.1°C / 53.8°F

Current weather

10°C / 50°F
(clear sky)
Partly cloudy
Wind
10 mph
Humidity
67%

The measurements for the water temperature in Saint Ignace, Michigan are provided by the daily satellite readings provided by the NOAA. The temperatures given are the sea surface temperature (SST) which is most relevant to recreational users.

*Live data may vary from satellite readings for a number of reasons. These include local factors, depth of smapling and time of day.

Water temp by month

Monthly average max / min water temperatures

The graph below shows the range of monthly Saint Ignace water temperature derived from many years of historical sea surface temperature data.

Saint Ignace average maximum / minimum water temperatures
Maximum and minimum monthly sea temperatures in Saint Ignace
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C 1.1 -0.4 -0.3 0.7 1.8 5.2 13.7 18.5 15.4 9.6 5.6 2.6
Max °C 3.8 2 1.5 3.8 6.8 15.3 22.7 22.2 21.2 16.7 10.8 6.6
Min °F 35 32.3 32.2 34.5 37.2 45.4 60.3 66.7 62 52.1 44.2 38.3
Max °F 37.7 34.6 34 37.6 42.2 55.5 69.3 70.4 67.8 59.2 49.4 42.3

The warmest water temperature is in August with an average around 68.5°F / 20.3°C. The coldest month is March with an average water temperature of 33.1°F / 0.6°C.