Lake Superior Water Temperature
(Today) Sep 2025
15.2°C / 59.3°F
The water will feel medium. The water will feel a bit chilly in just bathers / swimming costume. If you plan on wearing a wetsuit 4/3mm should be thick enough.
Current weather
25°C / 77°F
(overcast clouds)
(overcast clouds)
Wind
6 mph
Humidity
68%
Water temps is based on average surface temperatures measured throughout Lake Superior.
Map showing Lake Superior locations. Click on pins to view water temperature.
6 locations listed in Lake Superior.
Based on readings from Ashland