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

71.1°F
Sunny
Sunny
71.1°F
77.2°F
87%
SSW 11.2 mph
23.5 mph
73.2°F
69.4°F
0 in
0%
6 mi
1005 mbar
0.4

Five Day Weather Forecast

Sunny
Tue
H: 86°F
L: 60°F
Sunny
Wed
H: 62°F
L: 55°F
Sunny
Thu
H: 62°F
L: 52°F
Sunny
Fri
H: 59°F
L: 47°F
Patchy rain nearby
Sat
H: 54°F
L: 47°F

Air Quality

AQI: 1 - Good
PM2.5: 3.2 μg/m3
PM10: 3.5 μg/m3
Carbon Monoxide: 109 μg/m3
Nitrogen Dioxide: 0.8 μg/m3
Sulphur Dioxide: 0.2 μg/m3
Ozone: 68 μg/m3

Astronomical

Sunrise: 5:52 AM
Sun Transit: 1:50 PM
Sunset: 9:48 PM
Daylight: 15 hrs 55 mins
Moonrise: 10:49 PM
Moon Transit: 2:03 AM
Moonset: 5:58 AM
Moon Phase: Full
Moon Illumination: 98.6%

Best Times for Fishing or Hunting

Major Periods

1:33 AM - 4:03 AM
2:27 PM - 4:57 PM

Minor Periods

10:19 PM - 11:49 PM
5:28 AM - 6:58 AM

Action Rating: 4 out of 5

Small Craft Advisory issued June 29 at 10:10PM EDT until June 30 at 6:00AM EDT by NWS Marquette MI

Effective: Mon June 29, 2026, 10:10 PM
Expires: Tue June 30, 2026, 6:00 AM

* WHAT...South winds 10 to 15 kt with gusts up to 25 kt and waves 1 to 4 ft occurring. * WHERE...Eagle River to Manitou Island MI and Manitou Island to Point Isabelle MI. * WHEN...Until 6 AM EDT Tuesday. * IMPACTS...Conditions will be hazardous to small craft.

Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions.
Tuesday, June 30, 2026

Weather Forecast

Sunny
85.5°F
59.5°F
71.6°F
85%
0.11 in
65%
0%
17.4 mph
7.1


Air Quality

AQI: 1 - Good
PM2.5: 3.11 μg/m3
PM10: 3.31 μg/m3
Carbon Monoxide: 115.88 μg/m3
Nitrogen Dioxide: 1.06 μg/m3
Sulphur Dioxide: 0.22 μg/m3
Ozone: 81.04 μg/m3

Astronomical

Sunrise: 5:52 AM
Sun Transit: 1:50 PM
Sunset: 9:48 PM
Daylight: 15 hrs 55 mins
Moonrise: 10:49 PM
Moon Transit: 2:03 AM
Moonset: 5:58 AM
Moon Phase: Full
Moon Illumination: 98.6%

Best Times for Fishing or Hunting

Major Periods

1:33 AM - 4:03 AM
2:27 PM - 4:57 PM

Minor Periods

10:19 PM - 11:49 PM
5:28 AM - 6:58 AM

Action Rating: 4 out of 5

Wednesday, July 1, 2026

Weather Forecast

Sunny
61.5°F
54.7°F
57.3°F
85%
1.17 in
80%
0%
18.6 mph
6.4


Air Quality

AQI: 1 - Good
PM2.5: 4.38 μg/m3
PM10: 5.54 μg/m3
Carbon Monoxide: 114.04 μg/m3
Nitrogen Dioxide: 1.16 μg/m3
Sulphur Dioxide: 0.2 μg/m3
Ozone: 77.21 μg/m3

Astronomical

Sunrise: 5:53 AM
Sun Transit: 1:50 PM
Sunset: 9:47 PM
Daylight: 15 hrs 55 mins
Moonrise: 11:16 PM
Moon Transit: 2:53 AM
Moonset: 7:05 AM
Moon Phase: Full
Moon Illumination: 94.7%

Best Times for Fishing or Hunting

Major Periods

2:23 AM - 4:53 AM
3:15 PM - 5:45 PM

Minor Periods

12:00 AM - 12:00 AM
6:35 AM - 8:05 AM

Action Rating: 3 out of 5

Thursday, July 2, 2026

Weather Forecast

Sunny
62.2°F
52.4°F
56.2°F
90%
0 in
25%
0%
18.3 mph
6.2


Air Quality

AQI: 1 - Good
PM2.5: 3.91 μg/m3
PM10: 4.09 μg/m3
Carbon Monoxide: 114.92 μg/m3
Nitrogen Dioxide: 1.1 μg/m3
Sulphur Dioxide: 0.22 μg/m3
Ozone: 89.58 μg/m3

Astronomical

Sunrise: 5:53 AM
Sun Transit: 1:50 PM
Sunset: 9:47 PM
Daylight: 15 hrs 54 mins
Moonrise: 12:16 AM
Moon Transit: 3:41 AM
Moonset: 8:15 AM
Moon Phase: Waning Gibbous
Moon Illumination: 88.5%

Best Times for Fishing or Hunting

Major Periods

3:11 AM - 5:41 AM
4:02 PM - 6:32 PM

Minor Periods

7:45 AM - 9:15 AM
12:00 AM - 12:00 AM

Action Rating: 3 out of 5

Friday, July 3, 2026

Weather Forecast

Sunny
59°F
47.2°F
54.6°F
93%
0.38 in
83%
0%
13.4 mph
5.3


Air Quality

AQI: 1 - Good
PM2.5: 2.08 μg/m3
PM10: 2.12 μg/m3
Carbon Monoxide: 123.34 μg/m3
Nitrogen Dioxide: 1.32 μg/m3
Sulphur Dioxide: 0.17 μg/m3
Ozone: 66.5 μg/m3

Astronomical

Sunrise: 5:54 AM
Sun Transit: 1:50 PM
Sunset: 9:47 PM
Daylight: 15 hrs 53 mins
Moonrise: 12:38 AM
Moon Transit: 4:26 AM
Moonset: 9:25 AM
Moon Phase: Waning Gibbous
Moon Illumination: 80.3%

Best Times for Fishing or Hunting

Major Periods

3:56 AM - 6:26 AM
4:46 PM - 7:16 PM

Minor Periods

8:55 AM - 10:25 AM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Saturday, July 4, 2026

Weather Forecast

Patchy rain nearby
53.9°F
46.8°F
48.8°F
96%
0.03 in
63%
0%
16.6 mph
3


Air Quality

AQI: 1 - Good
PM2.5: 1.54 μg/m3
PM10: 1.61 μg/m3
Carbon Monoxide: 163.22 μg/m3
Nitrogen Dioxide: 1.08 μg/m3
Sulphur Dioxide: 0.29 μg/m3
Ozone: 70.56 μg/m3

Astronomical

Sunrise: 5:55 AM
Sun Transit: 1:50 PM
Sunset: 9:46 PM
Daylight: 15 hrs 52 mins
Moonrise: 12:56 AM
Moon Transit: 5:10 AM
Moonset: 10:36 AM
Moon Phase: Waning Gibbous
Moon Illumination: 70.6%

Best Times for Fishing or Hunting

Major Periods

4:40 AM - 7:10 AM
5:30 PM - 8:00 PM

Minor Periods

10:06 AM - 11:36 AM
12:00 AM - 12:00 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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