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

57°F
Sunny
Sunny
53.3°F
56.2°F
67%
WSW 17 mph
35.7 mph
52.8°F
43.4°F
0 in
0%
6 mi
1007 mbar
2.7

Five Day Weather Forecast

Patchy rain nearby
Mon
H: 64°F
L: 51°F
Patchy rain nearby
Tue
H: 45°F
L: 41°F
Patchy rain nearby
Wed
H: 48°F
L: 44°F
Partly Cloudy
Thu
H: 47°F
L: 43°F
Partly Cloudy
Fri
H: 49°F
L: 44°F

Air Quality

AQI: 1 - Good
PM2.5: 1.4 μg/m3
PM10: 1.5 μg/m3
Carbon Monoxide: 101 μg/m3
Nitrogen Dioxide: 0.5 μg/m3
Sulphur Dioxide: 0.1 μg/m3
Ozone: 66 μg/m3

Astronomical

Sunrise: 5:48 AM
Sun Transit: 1:46 PM
Sunset: 9:46 PM
Daylight: 15 hrs 58 mins
Moonrise: 5:43 AM
Moon Transit: 2:27 PM
Moonset: 11:06 PM
Moon Phase: New
Moon Illumination: 3.8%

Best Times for Fishing or Hunting

Major Periods

1:52 AM - 4:22 AM
1:57 PM - 4:27 PM

Minor Periods

12:00 AM - 12:00 AM
5:13 AM - 6:43 AM

Action Rating: 3 out of 5

Small Craft Advisory issued June 15 at 4:32AM EDT until June 15 at 8:00PM EDT by NWS Marquette MI

Effective: Mon June 15, 2026, 4:32 AM
Expires: Mon June 15, 2026, 4:45 PM

* WHAT...West winds 10 to 15 kt with gusts up to 25 kt and waves 1 to 2 ft expected. * WHERE...Point Isabelle to Lower Entrance of Portage Canal MI and Lower Entrance of Portage Canal To Huron Islands MI Including Keweenaw and Huron Bays. * WHEN...From 2 PM this afternoon to 8 PM EDT this evening. * IMPACTS...Conditions will be hazardous to small craft.

Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions.
Monday, June 15, 2026

Weather Forecast

Patchy rain nearby
63.7°F
51.3°F
56.9°F
54%
0 in
17%
0%
19 mph
6.5


Air Quality

AQI: 1 - Good
PM2.5: 1.93 μg/m3
PM10: 2.08 μg/m3
Carbon Monoxide: 101.67 μg/m3
Nitrogen Dioxide: 0.77 μg/m3
Sulphur Dioxide: 0.11 μg/m3
Ozone: 75.83 μg/m3

Astronomical

Sunrise: 5:48 AM
Sun Transit: 1:46 PM
Sunset: 9:46 PM
Daylight: 15 hrs 58 mins
Moonrise: 5:43 AM
Moon Transit: 2:27 PM
Moonset: 11:06 PM
Moon Phase: New
Moon Illumination: 3.8%

Best Times for Fishing or Hunting

Major Periods

1:52 AM - 4:22 AM
1:57 PM - 4:27 PM

Minor Periods

12:00 AM - 12:00 AM
5:13 AM - 6:43 AM

Action Rating: 3 out of 5

Tuesday, June 16, 2026

Weather Forecast

Patchy rain nearby
45.2°F
40.6°F
43.6°F
96%
0.1 in
83%
0%
14.3 mph
3.6


Air Quality

AQI: 1 - Good
PM2.5: 1.48 μg/m3
PM10: 1.58 μg/m3
Carbon Monoxide: 99.46 μg/m3
Nitrogen Dioxide: 0.78 μg/m3
Sulphur Dioxide: 0.13 μg/m3
Ozone: 59.54 μg/m3

Astronomical

Sunrise: 5:48 AM
Sun Transit: 1:47 PM
Sunset: 9:46 PM
Daylight: 15 hrs 58 mins
Moonrise: 7:01 AM
Moon Transit: 3:33 PM
Moonset: 12:06 AM
Moon Phase: New
Moon Illumination: 1.0%

Best Times for Fishing or Hunting

Major Periods

2:59 AM - 5:29 AM
3:03 PM - 5:33 PM

Minor Periods

6:31 AM - 8:01 AM
12:00 AM - 12:00 AM

Action Rating: 4 out of 5

Wednesday, June 17, 2026

Weather Forecast

Patchy rain nearby
47.5°F
43.8°F
45.2°F
86%
0.01 in
26%
0%
12.8 mph
7.4


Air Quality

AQI: 1 - Good
PM2.5: 0.63 μg/m3
PM10: 0.68 μg/m3
Carbon Monoxide: 93.75 μg/m3
Nitrogen Dioxide: 0.95 μg/m3
Sulphur Dioxide: 0.1 μg/m3
Ozone: 53 μg/m3

Astronomical

Sunrise: 5:48 AM
Sun Transit: 1:47 PM
Sunset: 9:47 PM
Daylight: 15 hrs 59 mins
Moonrise: 8:27 AM
Moon Transit: 4:34 PM
Moonset: 12:51 AM
Moon Phase: Waxing Crescent
Moon Illumination: 4.6%

Best Times for Fishing or Hunting

Major Periods

4:03 AM - 6:33 AM
4:04 PM - 6:34 PM

Minor Periods

7:57 AM - 9:27 AM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Thursday, June 18, 2026

Weather Forecast

Partly Cloudy
47°F
43.3°F
45.8°F
92%
0 in
21%
0%
18.8 mph
7.2


Air Quality

AQI: 1 - Good
PM2.5: 1.06 μg/m3
PM10: 1.2 μg/m3
Carbon Monoxide: 98.9 μg/m3
Nitrogen Dioxide: 0.62 μg/m3
Sulphur Dioxide: 0.13 μg/m3
Ozone: 55.92 μg/m3

Astronomical

Sunrise: 5:48 AM
Sun Transit: 1:47 PM
Sunset: 9:47 PM
Daylight: 15 hrs 59 mins
Moonrise: 9:53 AM
Moon Transit: 5:28 PM
Moonset: 12:23 AM
Moon Phase: Waxing Crescent
Moon Illumination: 10.4%

Best Times for Fishing or Hunting

Major Periods

5:00 AM - 7:30 AM
4:58 PM - 7:28 PM

Minor Periods

9:23 AM - 10:53 AM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Friday, June 19, 2026

Weather Forecast

Partly Cloudy
49.1°F
44.3°F
46.6°F
81%
0 in
13%
0%
17.4 mph
0.6


Air Quality

AQI: 1 - Good
PM2.5: 0.69 μg/m3
PM10: 0.71 μg/m3
Carbon Monoxide: 115.44 μg/m3
Nitrogen Dioxide: 0.91 μg/m3
Sulphur Dioxide: 0.13 μg/m3
Ozone: 54 μg/m3

Astronomical

Sunrise: 5:48 AM
Sun Transit: 1:47 PM
Sunset: 9:47 PM
Daylight: 15 hrs 59 mins
Moonrise: 11:14 AM
Moon Transit: 6:18 PM
Moonset: 12:47 AM
Moon Phase: Waxing Crescent
Moon Illumination: 18.3%

Best Times for Fishing or Hunting

Major Periods

5:52 AM - 8:22 AM
5:48 PM - 8:18 PM

Minor Periods

10:44 AM - 12:14 AM
12:17 AM - 1:47 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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