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

82°F
Sunny
Sunny
86.7°F
82.3°F
67%
WSW 20.6 mph
43.2 mph
79.2°F
68°F
0 in
0%
6 mi
1016 mbar
0.7

Five Day Weather Forecast

Sunny
Mon
H: 88°F
L: 69°F
Sunny
Tue
H: 68°F
L: 59°F
Sunny
Wed
H: 63°F
L: 57°F
Sunny
Thu
H: 62°F
L: 52°F
Sunny
Fri
H: 58°F
L: 55°F

Air Quality

AQI: 1 - Good
PM2.5: 3.7 μg/m3
PM10: 3.9 μg/m3
Carbon Monoxide: 118 μg/m3
Nitrogen Dioxide: 1.2 μg/m3
Sulphur Dioxide: 0.2 μg/m3
Ozone: 84 μg/m3

Astronomical

Sunrise: 6:02 AM
Sun Transit: 1:52 PM
Sunset: 9:41 PM
Daylight: 15 hrs 39 mins
Moonrise: 4:31 AM
Moon Transit: 1:11 PM
Moonset: 9:41 PM
Moon Phase: New
Moon Illumination: 0.1%

Best Times for Fishing or Hunting

Major Periods

12:37 AM - 3:07 AM
12:41 AM - 3:11 PM

Minor Periods

9:11 PM - 10:41 PM
4:01 AM - 5:31 AM

Action Rating: 3 out of 5

Small Craft Advisory issued July 12 at 9:35PM EDT until July 13 at 8:00PM EDT by NWS Marquette MI

Effective: Sun July 12, 2026, 9:35 PM
Expires: Mon July 13, 2026, 9:45 AM

* WHAT...Southwest to west winds 10 to 20 kt with gusts up to 30 kt and waves 2 to 5 ft occurring. * WHERE...Ontonagon to Upper Entrance of Portage Canal MI, Upper Entrance of Portage Canal to Eagle River MI and Eagle River to Manitou Island MI. * WHEN...Until 8 PM EDT Monday. * IMPACTS...Conditions will be hazardous to small craft.

Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions.
Monday, July 13, 2026

Weather Forecast

Sunny
88°F
68.6°F
77.5°F
65%
0 in
5%
0%
23.9 mph
8.9


Air Quality

AQI: 1 - Good
PM2.5: 3.65 μg/m3
PM10: 3.88 μg/m3
Carbon Monoxide: 117.63 μg/m3
Nitrogen Dioxide: 0.93 μg/m3
Sulphur Dioxide: 0.28 μg/m3
Ozone: 107.29 μg/m3

Astronomical

Sunrise: 6:02 AM
Sun Transit: 1:52 PM
Sunset: 9:41 PM
Daylight: 15 hrs 39 mins
Moonrise: 4:31 AM
Moon Transit: 1:11 PM
Moonset: 9:41 PM
Moon Phase: New
Moon Illumination: 0.1%

Best Times for Fishing or Hunting

Major Periods

12:37 AM - 3:07 AM
12:41 AM - 3:11 PM

Minor Periods

9:11 PM - 10:41 PM
4:01 AM - 5:31 AM

Action Rating: 3 out of 5

Tuesday, July 14, 2026

Weather Forecast

Sunny
67.7°F
59.2°F
63.8°F
77%
0 in
9%
0%
26.4 mph
8.9


Air Quality

AQI: 1 - Good
PM2.5: 3.91 μg/m3
PM10: 4.08 μg/m3
Carbon Monoxide: 120.21 μg/m3
Nitrogen Dioxide: 1.02 μg/m3
Sulphur Dioxide: 0.24 μg/m3
Ozone: 101.67 μg/m3

Astronomical

Sunrise: 6:03 AM
Sun Transit: 1:52 PM
Sunset: 9:40 PM
Daylight: 15 hrs 37 mins
Moonrise: 5:54 AM
Moon Transit: 2:15 PM
Moonset: 10:19 PM
Moon Phase: New
Moon Illumination: 1.9%

Best Times for Fishing or Hunting

Major Periods

1:42 AM - 4:12 AM
1:45 PM - 4:15 PM

Minor Periods

9:49 PM - 11:19 PM
5:24 AM - 6:54 AM

Action Rating: 4 out of 5

Wednesday, July 15, 2026

Weather Forecast

Sunny
62.7°F
56.7°F
59.3°F
69%
0 in
7%
0%
12.5 mph
8.2


Air Quality

AQI: 1 - Good
PM2.5: 3.38 μg/m3
PM10: 3.45 μg/m3
Carbon Monoxide: 108.92 μg/m3
Nitrogen Dioxide: 0.86 μg/m3
Sulphur Dioxide: 0.32 μg/m3
Ozone: 73.25 μg/m3

Astronomical

Sunrise: 6:04 AM
Sun Transit: 1:52 PM
Sunset: 9:40 PM
Daylight: 15 hrs 35 mins
Moonrise: 7:22 AM
Moon Transit: 3:14 PM
Moonset: 10:47 PM
Moon Phase: New
Moon Illumination: 0.2%

Best Times for Fishing or Hunting

Major Periods

2:43 AM - 5:13 AM
2:44 PM - 5:14 PM

Minor Periods

10:17 PM - 11:47 PM
6:52 AM - 8:22 AM

Action Rating: 3 out of 5

Thursday, July 16, 2026

Weather Forecast

Sunny
62.3°F
51.9°F
55.8°F
75%
0 in
8%
0%
10.1 mph
8.1


Air Quality

AQI: 1 - Good
PM2.5: 4.65 μg/m3
PM10: 4.72 μg/m3
Carbon Monoxide: 121.88 μg/m3
Nitrogen Dioxide: 1.43 μg/m3
Sulphur Dioxide: 0.38 μg/m3
Ozone: 66.17 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

Sunny
57.6°F
54.5°F
56.5°F
72%
0.08 in
57%
0%
11.2 mph
4


Air Quality

AQI: 1 - Good
PM2.5: 6.13 μg/m3
PM10: 6.27 μg/m3
Carbon Monoxide: 160.11 μg/m3
Nitrogen Dioxide: 1.59 μg/m3
Sulphur Dioxide: 0.58 μg/m3
Ozone: 56.22 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

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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