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

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)
Middle Branch Escanaba River, , MI (96.9 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)

Weather Near Copper Harbor, Michigan

Current Weather

66.9°F
Smoky haze
Smoky haze
66.9°F
69.3°F
73%
WNW 10.3 mph
21.6 mph
69.3°F
57.4°F
0 in
0%
6 mi
1019 mbar
0.1

Five Day Weather Forecast

Smoky haze
Thu
H: 69°F
L: 58°F
Patchy rain nearby
Fri
H: 59°F
L: 55°F
Patchy rain nearby
Sat
H: 56°F
L: 50°F
Sunny
Sun
H: 66°F
L: 55°F
Patchy rain nearby
Mon
H: 64°F
L: 51°F

Air Quality

AQI: 2 - Moderate
PM2.5: 55.6 μg/m3
PM10: 57.6 μg/m3
Carbon Monoxide: 304 μg/m3
Nitrogen Dioxide: 2.1 μg/m3
Sulphur Dioxide: 2.3 μg/m3
Ozone: 101 μg/m3

Astronomical

Sunrise: 6:05 AM
Sun Transit: 1:52 PM
Sunset: 9:39 PM
Daylight: 15 hrs 33 mins
Moonrise: 8:48 AM
Moon Transit: 4:07 PM
Moonset: 11:08 PM
Moon Phase: New
Moon Illumination: 2.4%

Best Times for Fishing or Hunting

Major Periods

3:39 AM - 6:09 AM
3:37 PM - 6:07 PM

Minor Periods

12:00 AM - 12:00 AM
8:18 AM - 9:48 AM

Action Rating: 4 out of 5

Thursday, July 16, 2026

Weather Forecast

Smoky haze
69.3°F
58.2°F
64.7°F
63%
0 in
17%
0%
14.8 mph
0.8


Air Quality

AQI: 3 - Unhealthy for Sensitive Groups
PM2.5: 42.79 μg/m3
PM10: 44.1 μg/m3
Carbon Monoxide: 212.08 μg/m3
Nitrogen Dioxide: 2.28 μg/m3
Sulphur Dioxide: 1.48 μg/m3
Ozone: 94.17 μg/m3

Astronomical

Sunrise: 6:05 AM
Sun Transit: 1:52 PM
Sunset: 9:39 PM
Daylight: 15 hrs 33 mins
Moonrise: 8:48 AM
Moon Transit: 4:07 PM
Moonset: 11:08 PM
Moon Phase: New
Moon Illumination: 2.4%

Best Times for Fishing or Hunting

Major Periods

3:39 AM - 6:09 AM
3:37 PM - 6:07 PM

Minor Periods

12:00 AM - 12:00 AM
8:18 AM - 9:48 AM

Action Rating: 4 out of 5

Friday, July 17, 2026

Weather Forecast

Patchy rain nearby
58.9°F
55.4°F
57.1°F
92%
0.34 in
88%
0%
13.6 mph
2


Air Quality

AQI: 1 - Good
PM2.5: 11.1 μg/m3
PM10: 11.37 μg/m3
Carbon Monoxide: 121.42 μg/m3
Nitrogen Dioxide: 0.88 μg/m3
Sulphur Dioxide: 0.33 μg/m3
Ozone: 90.17 μg/m3

Astronomical

Sunrise: 6:07 AM
Sun Transit: 1:52 PM
Sunset: 9:38 PM
Daylight: 15 hrs 31 mins
Moonrise: 10:09 AM
Moon Transit: 4:55 PM
Moonset: 12:08 AM
Moon Phase: Waxing Crescent
Moon Illumination: 7.0%

Best Times for Fishing or Hunting

Major Periods

4:30 AM - 7:00 AM
4:25 PM - 6:55 PM

Minor Periods

9:39 AM - 11:09 AM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Saturday, July 18, 2026

Weather Forecast

Patchy rain nearby
56.4°F
49.8°F
53.5°F
98%
0.05 in
78%
0%
13.6 mph
4.2


Air Quality

AQI: 1 - Good
PM2.5: 10.5 μg/m3
PM10: 10.64 μg/m3
Carbon Monoxide: 151.58 μg/m3
Nitrogen Dioxide: 1.09 μg/m3
Sulphur Dioxide: 0.37 μg/m3
Ozone: 96.75 μg/m3

Astronomical

Sunrise: 6:08 AM
Sun Transit: 1:52 PM
Sunset: 9:37 PM
Daylight: 15 hrs 29 mins
Moonrise: 11:25 AM
Moon Transit: 5:41 PM
Moonset: 12:26 AM
Moon Phase: Waxing Crescent
Moon Illumination: 13.9%

Best Times for Fishing or Hunting

Major Periods

5:16 AM - 7:46 AM
5:11 PM - 7:41 PM

Minor Periods

10:55 AM - 12:25 AM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Sunday, July 19, 2026

Weather Forecast

Sunny
66.3°F
55°F
58.9°F
84%
0.01 in
29%
0%
13 mph
0.2


Air Quality

AQI: 1 - Good
PM2.5: 12.99 μg/m3
PM10: 13.09 μg/m3
Carbon Monoxide: 175.2 μg/m3
Nitrogen Dioxide: 0.76 μg/m3
Sulphur Dioxide: 0.63 μg/m3
Ozone: 109.25 μg/m3

Astronomical

Sunrise: 6:09 AM
Sun Transit: 1:52 PM
Sunset: 9:36 PM
Daylight: 15 hrs 27 mins
Moonrise: 12:39 AM
Moon Transit: 6:24 PM
Moonset: 12:42 AM
Moon Phase: Waxing Crescent
Moon Illumination: 22.6%

Best Times for Fishing or Hunting

Major Periods

6:01 AM - 8:31 AM
5:54 PM - 8:24 PM

Minor Periods

12:09 AM - 1:39 PM
12:00 AM - 12:00 AM

Action Rating: 3 out of 5

Monday, July 20, 2026

Weather Forecast

Patchy rain nearby
63.7°F
50.5°F
56.6°F
83%
0.09 in
67%
0%
28.9 mph
4


Air Quality

AQI: 2 - Moderate
PM2.5: 22.01 μg/m3
PM10: 22.11 μg/m3
Carbon Monoxide: 338.44 μg/m3
Nitrogen Dioxide: 0.83 μg/m3
Sulphur Dioxide: 0.49 μg/m3
Ozone: 98 μg/m3

Astronomical

Sunrise: 6:10 AM
Sun Transit: 1:52 PM
Sunset: 9:35 PM
Daylight: 15 hrs 25 mins
Moonrise: 1:51 PM
Moon Transit: 7:08 PM
Moonset: 12:58 AM
Moon Phase: Waxing Crescent
Moon Illumination: 32.7%

Best Times for Fishing or Hunting

Major Periods

6:44 AM - 9:14 AM
6:38 PM - 9:08 PM

Minor Periods

1:21 PM - 2:51 PM
12:00 AM - 12:00 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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