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Lake Superior Water Temperature Today

Lake Superior averaged 49.0°F (9.4°C) at the surface on Nov 6, 2026, 3.1°F above the 1995–2025 average for that date (NOAA GLERL, satellite).

Updated · Source: NOAA GLERL (GLSEA)NOAA GLERL

Water temperature

49.0°F

Lake-wide average, Nov 6, 2026
9.4°C

  • −0.3°Fin 7 days
  • ColdHow the water feels
  • +3.1°Fvs the Nov 6 average (45.9°F, 1995–2025)
40°50°60°70°80°40°50°60°70°80°
  • Nov 6 average

Water temperature at the shore

Lake Superior water temperature by station. Column headers sort the table.
Duluth, MN909906455.4°F8:48 PM CST, Nov 7
Shore gauges read the water at one spot; it can differ by several degrees from the lake average.

This season

  • 2026
  • 2025
Source: NOAA GLERL, GLSEA · lake-wide daily average

How the water feels

  • cold — wetsuit
  • cool
  • comfortable
  • warm

A rough guide to how the water feels, not a safety rating. The National Weather Service warns that water below 70°F can cause cold shock. Waves and currents are separate risks: check beach forecasts and local advisories.

Quick answers

How warm is Lake Superior today?
The lake-wide average surface temperature was 49.0°F (9.4°C) on Nov 6, 2026, +3.1°F compared with the average for that date.
Is it warmer than last year?
A year earlier the lake averaged 48.5°F, so it is 0.5°F warmer now.
Where does the temperature come from?
From the Great Lakes Surface Environmental Analysis (GLSEA) of NOAA GLERL, which maps the surface temperature of the whole lake from satellite every day. It usually runs one or two days behind.
Lake Superior water level: 601.94 ft

Where this data comes from

Lake-wide surface temperature from the Great Lakes Surface Environmental Analysis (GLSEA) of NOAA GLERL. Shore temperatures from NOAA CO-OPS stations.

Lake Levels Daily is an independent site, not affiliated with TWDB, LCRA, USACE, USGS, NOAA, TVA or any lake operator. Check official sources before making safety decisions.