Water Temperature of Lake Superior Near Copper Harbor, MI

Current Water Temperature

40.1°F

Measurement Time: Tuesday, December 2, 2025, 1:20 PM EST

Temperature Locations

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Local Points of Interest

Quebec Harbour

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Lake Superior

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

46.4°F
Clear
Conditions: Clear
Humidity: 100%
Feels Like: 39.2°F
Wind: N 18.6 mph
Wind Gusts: 25.3 mph
Pressure: 29.46 in
Precipitation: 0 in
Cloud Cover: 0%
Visibility: 6 mi
UV Index: 0

Weather Forecast

Patchy rain nearby
Thu
H: 49°F
L: 39°F
Partly Cloudy
Fri
H: 41°F
L: 37°F
Sunny
Sat
H: 44°F
L: 39°F

Air Quality

AQI: 1 - Good
PM2.5: 0.1 μg/m3
PM10: 0.1 μg/m3
Carbon Monoxide: 127 μg/m3
Nitrogen Dioxide: 0.3 μg/m3
Sulphur Dioxide: 0.1 μg/m3
Ozone: 59 μg/m3

Astronomical

Sunrise: 7:36 AM
Sun Transit: 12:29 AM
Sunset: 5:22 PM
Daylight: 9 hrs 46 mins
Moonrise: 3:37 AM
Moon Transit: 9:42 AM
Moonset: 3:34 PM
Moon Phase: Waning Crescent
Moon Illumination: 10.6%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
9:12 AM - 11:42 AM

Minor Periods

3:04 PM - 4:34 PM
3:07 AM - 4:37 AM

Action Rating: 2 out of 5

Gale Warning issued November 4 at 9:43PM EST until November 6 at 1:00AM EST by NWS Marquette MI

Effective: Wed November 4, 2026, 9:43 PM
Expires: Thu November 5, 2026, 9:45 AM

* 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...From 7 AM Thursday to 1 AM EST Friday. * IMPACTS...Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility.
Thursday, November 5, 2026

Weather Forecast

Conditions: Patchy rain nearby
Average Temperature: 42.7°F
Average Humidity: 85%
Chance of Rain: 88%
Wind: 36.5 mph
UV Index: 0.3

Astronomical

Sunrise: 7:36 AM
Sun Transit: 12:29 AM
Sunset: 5:22 PM
Daylight: 9 hrs 46 mins
Moonrise: 3:37 AM
Moon Transit: 9:42 AM
Moonset: 3:34 PM
Moon Phase: Waning Crescent
Moon Illumination: 10.6%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
9:12 AM - 11:42 AM

Minor Periods

3:04 PM - 4:34 PM
3:07 AM - 4:37 AM

Action Rating: 2 out of 5

Friday, November 6, 2026

Weather Forecast

Conditions: Partly Cloudy
Average Temperature: 38.4°F
Average Humidity: 71%
Chance of Rain: 28%
Wind: 24.8 mph
UV Index: 1.7

Astronomical

Sunrise: 7:38 AM
Sun Transit: 12:29 AM
Sunset: 5:21 PM
Daylight: 9 hrs 43 mins
Moonrise: 4:50 AM
Moon Transit: 10:26 AM
Moonset: 3:51 PM
Moon Phase: Waning Crescent
Moon Illumination: 4.7%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
9:56 AM - 12:26 AM

Minor Periods

3:21 PM - 4:51 PM
4:20 AM - 5:50 AM

Action Rating: 2 out of 5

Saturday, November 7, 2026

Weather Forecast

Conditions: Sunny
Average Temperature: 41.3°F
Average Humidity: 66%
Chance of Rain: 7%
Wind: 9.6 mph
UV Index: 1.6

Astronomical

Sunrise: 7:39 AM
Sun Transit: 12:30 AM
Sunset: 5:20 PM
Daylight: 9 hrs 40 mins
Moonrise: 6:02 AM
Moon Transit: 11:10 AM
Moonset: 4:09 PM
Moon Phase: Waning Crescent
Moon Illumination: 1.1%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
10:40 AM - 1:10 PM

Minor Periods

3:39 PM - 5:09 PM
5:32 AM - 7:02 AM

Action Rating: 3 out of 5

The times presented here are based upon the solunar theory, which is the idea that the movements of fish and other animals are affected by the location of the sun and moon. The major periods are believed to be the times of the greatest animal activity and occur when the moon is directly overhead or underfoot (lunar transits). The minor periods also see increased activity and occur when the moon is rising or setting. The strongest activity occurs during full or new moons, and the weakest during quarter or three quarter moons. This is indicated by the Action Rating.

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