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

55°F
Clear
Clear
51°F
57.2°F
86%
NW 15.4 mph
32.4 mph
53.9°F
46.5°F
0 in
0%
6 mi
1014 mbar
0

Five Day Weather Forecast

Sunny
Tue
H: 68°F
L: 55°F
Sunny
Wed
H: 60°F
L: 54°F
Sunny
Thu
H: 65°F
L: 55°F
Sunny
Fri
H: 63°F
L: 60°F
Sunny
Sat
H: 65°F
L: 58°F

Air Quality

AQI: 1 - Good
PM2.5: 6.7 μg/m3
PM10: 7.2 μg/m3
Carbon Monoxide: 90 μg/m3
Nitrogen Dioxide: 0.5 μg/m3
Sulphur Dioxide: 0.1 μg/m3
Ozone: 72 μg/m3

Astronomical

Sunrise: 6:11 AM
Sun Transit: 1:52 PM
Sunset: 9:34 PM
Daylight: 15 hrs 23 mins
Moonrise: 3:02 PM
Moon Transit: 7:52 PM
Moonset: 12:15 AM
Moon Phase: First Quarter
Moon Illumination: 43.7%

Best Times for Fishing or Hunting

Major Periods

7:28 AM - 9:58 AM
7:22 PM - 9:52 PM

Minor Periods

2:32 PM - 4:02 PM
12:00 AM - 12:00 AM

Action Rating: 3 out of 5

Gale Warning issued July 21 at 10:44AM EDT until July 21 at 8:00PM EDT by NWS Marquette MI

Effective: Tue July 21, 2026, 10:44 AM
Expires: Tue July 21, 2026, 8:00 PM

* WHAT...Northwest winds 20 to 25 kt with gusts up to 40 kt and waves 6 to 9 ft occurring. * WHERE...Portions of Central, Eastern and Western Lake Superior. * WHEN...Until 8 PM EDT this evening. * IMPACTS...Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility.

Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions.


Gale Warning issued July 21 at 3:35PM EDT until July 21 at 8:00PM EDT by NWS Marquette MI

Effective: Tue July 21, 2026, 3:35 PM
Expires: Tue July 21, 2026, 8:00 PM

* WHAT...Northwest winds 20 to 25 kt with gusts up to 35 kt and waves 6 to 9 ft occurring. * WHERE...Portions of Central, Eastern and Western Lake Superior. * WHEN...Until 8 PM EDT this evening. * IMPACTS...Strong winds will cause hazardous waves which could capsize or damage vessels and reduce visibility.

Mariners should alter plans to avoid these hazardous conditions. Remain in port, seek safe harbor, alter course, and/or secure the vessel for hazardous conditions.
Tuesday, July 21, 2026

Weather Forecast

Sunny
67.8°F
54.7°F
60.1°F
80%
0.03 in
50%
0%
28.2 mph
3.8


Air Quality

AQI: 1 - Good
PM2.5: 3.26 μg/m3
PM10: 3.38 μg/m3
Carbon Monoxide: 105.96 μg/m3
Nitrogen Dioxide: 0.54 μg/m3
Sulphur Dioxide: 0.12 μg/m3
Ozone: 77.5 μg/m3

Astronomical

Sunrise: 6:11 AM
Sun Transit: 1:52 PM
Sunset: 9:34 PM
Daylight: 15 hrs 23 mins
Moonrise: 3:02 PM
Moon Transit: 7:52 PM
Moonset: 12:15 AM
Moon Phase: First Quarter
Moon Illumination: 43.7%

Best Times for Fishing or Hunting

Major Periods

7:28 AM - 9:58 AM
7:22 PM - 9:52 PM

Minor Periods

2:32 PM - 4:02 PM
12:00 AM - 12:00 AM

Action Rating: 3 out of 5

Wednesday, July 22, 2026

Weather Forecast

Sunny
59.9°F
53.7°F
56.9°F
72%
0 in
7%
0%
15.7 mph
6.6


Air Quality

AQI: 1 - Good
PM2.5: 6.05 μg/m3
PM10: 6.31 μg/m3
Carbon Monoxide: 104.46 μg/m3
Nitrogen Dioxide: 0.95 μg/m3
Sulphur Dioxide: 0.26 μg/m3
Ozone: 71.54 μg/m3

Astronomical

Sunrise: 6:12 AM
Sun Transit: 1:52 PM
Sunset: 9:33 PM
Daylight: 15 hrs 21 mins
Moonrise: 4:12 PM
Moon Transit: 8:38 PM
Moonset: 12:34 AM
Moon Phase: First Quarter
Moon Illumination: 55.0%

Best Times for Fishing or Hunting

Major Periods

8:13 AM - 10:43 AM
8:08 PM - 10:38 PM

Minor Periods

3:42 PM - 5:12 PM
12:04 AM - 1:34 AM

Action Rating: 2 out of 5

Thursday, July 23, 2026

Weather Forecast

Sunny
64.6°F
54.9°F
58.9°F
70%
0 in
7%
0%
17.2 mph
7


Air Quality

AQI: 1 - Good
PM2.5: 6 μg/m3
PM10: 6.2 μg/m3
Carbon Monoxide: 123 μg/m3
Nitrogen Dioxide: 1.08 μg/m3
Sulphur Dioxide: 0.27 μg/m3
Ozone: 90.71 μg/m3

Astronomical

Sunrise: 6:13 AM
Sun Transit: 1:52 PM
Sunset: 9:32 PM
Daylight: 15 hrs 19 mins
Moonrise: 5:20 PM
Moon Transit: 9:26 PM
Moonset: 12:57 AM
Moon Phase: First Quarter
Moon Illumination: 66.1%

Best Times for Fishing or Hunting

Major Periods

9:00 AM - 11:30 AM
8:56 PM - 11:26 PM

Minor Periods

4:50 PM - 6:20 PM
12:27 AM - 1:57 AM

Action Rating: 2 out of 5

Friday, July 24, 2026

Weather Forecast

Sunny
63.2°F
59.9°F
61.2°F
76%
0 in
9%
0%
19.9 mph
7.2


Air Quality

AQI: 1 - Good
PM2.5: 7.24 μg/m3
PM10: 7.44 μg/m3
Carbon Monoxide: 153.75 μg/m3
Nitrogen Dioxide: 1.03 μg/m3
Sulphur Dioxide: 0.29 μg/m3
Ozone: 97.54 μg/m3

Astronomical

Sunrise: 6:14 AM
Sun Transit: 1:52 PM
Sunset: 9:31 PM
Daylight: 15 hrs 16 mins
Moonrise: 6:26 PM
Moon Transit: 10:15 PM
Moonset: 1:26 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 76.3%

Best Times for Fishing or Hunting

Major Periods

9:49 AM - 12:19 AM
12:00 AM - 12:00 AM

Minor Periods

5:56 PM - 7:26 PM
12:56 AM - 2:26 AM

Action Rating: 3 out of 5

Saturday, July 25, 2026

Weather Forecast

Sunny
64.7°F
58.1°F
60.2°F
89%
0.19 in
78%
0%
17.2 mph
5


Air Quality

AQI: 1 - Good
PM2.5: 4.83 μg/m3
PM10: 4.95 μg/m3
Carbon Monoxide: 138.75 μg/m3
Nitrogen Dioxide: 0.94 μg/m3
Sulphur Dioxide: 0.23 μg/m3
Ozone: 100.96 μg/m3

Astronomical

Sunrise: 6:16 AM
Sun Transit: 1:52 PM
Sunset: 9:29 PM
Daylight: 15 hrs 14 mins
Moonrise: 7:23 PM
Moon Transit: 11:07 PM
Moonset: 2:04 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 85.2%

Best Times for Fishing or Hunting

Major Periods

10:39 AM - 1:09 PM
12:00 AM - 12:00 AM

Minor Periods

6:53 PM - 8:23 PM
1:34 AM - 3:04 AM

Action Rating: 2 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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