Water Temperature of Lake Superior Near Copper Harbor, MI
Current Water Temperature
Severe hypothermia and cold water shock risk. Unprotected swimming causes rapid loss of dexterity in under 5 minutes.
Measurement Time: Tuesday, December 2, 2025, 1:20 PM EST
Temperature Locations
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Local Points of Interest
Quebec HarbourSponsored Content
Station Name: EAST SUPERIOR -70 NM NE Marquette, MI
Station Type: Other
Data Source: National Data Buoy Center
Elevation Above Sea Level: 0 feet
Nearest Address:
Offshore
Copper Harbor, MI 49918
Keweenaw County
GPS Coordinates: 47.585, -86.585
Nearby Water Temperatures
Lake Superior, Isle Royale, MI (61.5 mi)Lake Superior, Terrace Bay Township, ON (68.1 mi)
Miners River, Munising, MI (75.8 mi)
Lake Superior, Marquette, MI (80.9 mi)
East Branch Salmon Trout River, Powell, MI (81.2 mi)
Salmon Trout River, Champion, MI (82.2 mi)
Keweenaw Bay, Jacobsville, MI (95 mi)
Middle Branch Escanaba River, Humboldt, MI (96.6 mi)
Lake Superior, Calumet, MI (97 mi)
Pilgrim River, Houghton, MI (98.3 mi)
Falls River, L'Anse, MI (105.2 mi)
Sturgeon River, Pelkie, MI (114.2 mi)
Seul Choix Bay, Port Inland, MI (116.6 mi)
Escanaba River, Cornell, MI (119.6 mi)
Washington Creek, Windigo, MI (121.2 mi)
Weather Near Copper Harbor, Michigan
Current Weather

Humidity: 72%
Feels Like: 28.4°F
Wind: N 30.6 mph
Wind Gusts: 33.4 mph
Precipitation: 0 in
Cloud Cover: 100%
Visibility: 6 mi
UV Index: 0.3
Weather Forecast

Thu
H: 48°F
L: 39°F

Fri
H: 41°F
L: 37°F

Sat
H: 46°F
L: 39°F
Air Quality
Air quality is satisfactory, and air pollution poses little or no risk.
Astronomical
Best Times for Fishing or Hunting
Major Periods
9:12 AM - 11:42 AM9:34 PM - 12:04 AM
Minor Periods
3:07 AM - 4:37 AM3:04 PM - 4:34 PM
Gale Warning issued November 5 at 11:09AM EST until November 6 at 1:00AM EST by NWS Marquette MI
Effective: Thu November 5, 2026, 11:09 AM
Expires: Thu November 5, 2026, 11:15 PM
* WHAT...North winds 25 to 35 kt with gusts up to 45 kt and waves 11 to 16 ft expected. * WHERE...Portions of Central and Eastern Lake Superior. * WHEN...Until 1 AM EST Friday. * IMPACTS...Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility.
Weather Forecast
Average Temperature: 42.5°F
Average Humidity: 83%
Wind: 36.5 mph
UV Index: 0.3
Astronomical
Best Times for Fishing or Hunting
Major Periods
9:12 AM - 11:42 AM9:34 PM - 12:04 AM
Minor Periods
3:07 AM - 4:37 AM3:04 PM - 4:34 PM
Weather Forecast
Average Temperature: 38.5°F
Average Humidity: 71%
Wind: 24.2 mph
UV Index: 1.7
Astronomical
Best Times for Fishing or Hunting
Major Periods
9:56 AM - 12:26 PM10:18 PM - 12:48 AM
Minor Periods
4:20 AM - 5:50 AM3:21 PM - 4:51 PM
Weather Forecast
Average Temperature: 42.4°F
Average Humidity: 64%
Wind: 13.9 mph
UV Index: 1.6
Astronomical
Best Times for Fishing or Hunting
Major Periods
10:40 AM - 1:10 PM11:03 PM - 1:33 AM
Minor Periods
5:32 AM - 7:02 AM3:39 PM - 5:09 PM
