Water Temperature of Lake Superior Near Copper Harbor, MI

Current Water Temperature

40.1°F 4.5°C
Frigid Dangerously Cold
40.1°F
Frigid < 50°F
Cold 50°–60°
Cool 60°–70°
Comfortable 70°–80°
Warm 80°+

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 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

39°F
Blowing snow
Conditions: Blowing snow
Humidity: 74%
Feels Like: 29.3°F
Wind: NNE 19 mph
Wind Gusts: 24.6 mph
Pressure: 30.18 in
Precipitation: 0 in
Cloud Cover: 100%
Visibility: 1 mi
UV Index: 0

Weather Forecast

Blowing snow
Fri
H: 41°F
L: 37°F
Sunny
Sat
H: 47°F
L: 39°F
Overcast
Sun
H: 49°F
L: 44°F

Air Quality

EPA Index 1 • Good

Air quality is satisfactory, and air pollution poses little or no risk.

PM2.5
0.2 μg/m³
Good
PM10
0.3 μg/m³
Good
Ozone (O3)
79 μg/m³
Photochemical
NO2
0.1 μg/m³
Nitrogen Dioxide
SO2
0 μg/m³
Sulfur Dioxide
CO
115 μg/m³
Carbon Monoxide

Astronomical

Sun
9h 43m daylight
Sunrise 7:38 AM
Solar Noon 12:29 PM
Sunset 5:21 PM
Moon
Waning Crescent • 5%
Moonrise 4:50 AM
Transit 10:26 AM
Moonset 3:51 PM

Best Times for Fishing or Hunting

Major Periods

9:56 AM - 12:26 PM
10:18 PM - 12:48 AM

Minor Periods

4:20 AM - 5:50 AM
3:21 PM - 4:51 PM
Action Rating:
Fair Action 2/5
Friday, November 6, 2026

Weather Forecast

Conditions: Blowing snow
Average Temperature: 38.4°F
Average Humidity: 70%
Chance of Rain: 30%
Wind: 23.7 mph
UV Index: 1.7

Astronomical

Sun
9h 43m daylight
Sunrise 7:38 AM
Solar Noon 12:29 PM
Sunset 5:21 PM
Moon
Waning Crescent • 5%
Moonrise 4:50 AM
Transit 10:26 AM
Moonset 3:51 PM

Best Times for Fishing or Hunting

Major Periods

9:56 AM - 12:26 PM
10:18 PM - 12:48 AM

Minor Periods

4:20 AM - 5:50 AM
3:21 PM - 4:51 PM
Action Rating:
Fair Action 2/5
Saturday, November 7, 2026

Weather Forecast

Conditions: Sunny
Average Temperature: 42.5°F
Average Humidity: 65%
Chance of Rain: 8%
Wind: 14.8 mph
UV Index: 1.6

Astronomical

Sun
9h 40m daylight
Sunrise 7:39 AM
Solar Noon 12:30 PM
Sunset 5:20 PM
Moon
Waning Crescent • 1%
Moonrise 6:02 AM
Transit 11:10 AM
Moonset 4:09 PM

Best Times for Fishing or Hunting

Major Periods

10:40 AM - 1:10 PM
11:03 PM - 1:33 AM

Minor Periods

5:32 AM - 7:02 AM
3:39 PM - 5:09 PM
Action Rating:
Good Action 3/5
Sunday, November 8, 2026

Weather Forecast

Conditions: Overcast
Average Temperature: 46.3°F
Average Humidity: 75%
Chance of Rain: 21%
Wind: 29.1 mph
UV Index: 1.6

Astronomical

Sun
9h 37m daylight
Sunrise 7:41 AM
Solar Noon 12:30 PM
Sunset 5:18 PM
Moon
New • 0%
Moonrise 7:14 AM
Transit 11:56 AM
Moonset 4:31 PM

Best Times for Fishing or Hunting

Major Periods

11:26 AM - 1:56 PM
11:51 PM - 2:21 AM

Minor Periods

6:44 AM - 8:14 AM
4:01 PM - 5:31 PM
Action Rating:
Very Good 4/5
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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