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

39°F
Overcast
Overcast
34.1°F
35.4°F
72%
NW 6.7 mph
12.5 mph
31°F
30.3°F
0 in
0%
6 mi
1008 mbar
0.7

Five Day Weather Forecast

Patchy rain nearby
Mon
H: 36°F
L: 23°F
Overcast
Tue
H: 26°F
L: 24°F
Blizzard
Wed
H: 28°F
L: 27°F
Blowing snow
Thu
H: 30°F
L: 27°F
Blizzard
Fri
H: 30°F
L: 26°F

Air Quality

AQI: 1 - Good
PM2.5: 1.28 μg/m3
PM10: 1.38 μg/m3
Carbon Monoxide: 185.68 μg/m3
Nitrogen Dioxide: 1.68 μg/m3
Sulphur Dioxide: 1.18 μg/m3
Ozone: 77 μg/m3

Astronomical

Sunrise: 7:50 AM
Sun Transit: 1:00 PM
Sunset: 6:12 PM
Daylight: 10 hrs 22 mins
Moonrise: 7:41 AM
Moon Transit: 12:26 AM
Moonset: 5:22 PM
Moon Phase: New
Moon Illumination: 0.9%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 2:30 AM
11:56 AM - 2:26 PM

Minor Periods

4:52 PM - 6:22 PM
7:11 AM - 8:41 AM

Action Rating: 4 out of 5

Winter Storm Watch issued February 16 at 2:36AM EST until February 18 at 7:00PM EST by NWS Marquette MI

Effective: Mon February 16, 2026, 2:36 AM
Expires: Mon February 16, 2026, 4:00 PM

* WHAT...Mixed precipitation changing to heavy snow. Ice accumulations around one tenth of an inch possible in Marquette and Baraga Counties. Total snow accumulations between 4 and 8 inches, greatest in the high terrain of Marquette County and in the Keweenaw Peninsula. Winds could gust as high as 45 mph, strongest in the Keweenaw Peninsula and near Lake Superior. * WHERE...Baraga, Marquette, Keweenaw, and Northern Houghton Counties. * WHEN...From Tuesday evening through Wednesday evening. * IMPACTS...Travel could be very difficult. The hazardous conditions will impact the Wednesday morning and evening commutes. Gusty winds could bring down tree branches. Wet snow and gusty winds may cause sporadic power outages.

Monitor the latest forecasts for updates on this situation.
Monday, February 16, 2026

Weather Forecast

Patchy rain nearby
36°F
23.2°F
31.9°F
80%
0.02 in
83%
3%
8.9 mph
0.3


Air Quality

AQI: 1 - Good
PM2.5: 4.68 μg/m3
PM10: 5.24 μg/m3
Carbon Monoxide: 207.36 μg/m3
Nitrogen Dioxide: 2.04 μg/m3
Sulphur Dioxide: 1.17 μg/m3
Ozone: 75.04 μg/m3

Astronomical

Sunrise: 7:50 AM
Sun Transit: 1:00 PM
Sunset: 6:12 PM
Daylight: 10 hrs 22 mins
Moonrise: 7:41 AM
Moon Transit: 12:26 AM
Moonset: 5:22 PM
Moon Phase: New
Moon Illumination: 0.9%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 2:30 AM
11:56 AM - 2:26 PM

Minor Periods

4:52 PM - 6:22 PM
7:11 AM - 8:41 AM

Action Rating: 4 out of 5

Tuesday, February 17, 2026

Weather Forecast

Overcast
26.2°F
23.5°F
25.6°F
94%
0 in
0%
0%
24.2 mph
0.3


Air Quality

AQI: 1 - Good
PM2.5: 1.8 μg/m3
PM10: 2.1 μg/m3
Carbon Monoxide: 168.96 μg/m3
Nitrogen Dioxide: 1.54 μg/m3
Sulphur Dioxide: 0.97 μg/m3
Ozone: 73.44 μg/m3

Astronomical

Sunrise: 7:48 AM
Sun Transit: 1:00 PM
Sunset: 6:13 PM
Daylight: 10 hrs 25 mins
Moonrise: 8:01 AM
Moon Transit: 1:13 PM
Moonset: 6:38 PM
Moon Phase: New
Moon Illumination: 0.0%

Best Times for Fishing or Hunting

Major Periods

12:48 AM - 3:18 AM
12:43 AM - 3:13 PM

Minor Periods

6:08 PM - 7:38 PM
7:31 AM - 9:01 AM

Action Rating: 5 out of 5

Wednesday, February 18, 2026

Weather Forecast

Blizzard
27.8°F
27°F
27.6°F
94%
4.09 in
83%
62%
33.6 mph
0.2


Air Quality

AQI: 1 - Good
PM2.5: 1.59 μg/m3
PM10: 1.82 μg/m3
Carbon Monoxide: 161.2 μg/m3
Nitrogen Dioxide: 1.04 μg/m3
Sulphur Dioxide: 0.99 μg/m3
Ozone: 85.96 μg/m3

Astronomical

Sunrise: 7:46 AM
Sun Transit: 1:00 PM
Sunset: 6:15 PM
Daylight: 10 hrs 28 mins
Moonrise: 8:18 AM
Moon Transit: 1:58 PM
Moonset: 7:54 PM
Moon Phase: New
Moon Illumination: 1.3%

Best Times for Fishing or Hunting

Major Periods

1:34 AM - 4:04 AM
1:28 PM - 3:58 PM

Minor Periods

7:24 PM - 8:54 PM
7:48 AM - 9:18 AM

Action Rating: 4 out of 5

Thursday, February 19, 2026

Weather Forecast

Blowing snow
30.4°F
26.6°F
28.7°F
94%
0.48 in
60%
56%
25.3 mph
0


Air Quality

AQI: 1 - Good
PM2.5: 0.93 μg/m3
PM10: 0.97 μg/m3
Carbon Monoxide: 165.87 μg/m3
Nitrogen Dioxide: 1.16 μg/m3
Sulphur Dioxide: 0.86 μg/m3
Ozone: 81.76 μg/m3

Astronomical

Sunrise: 7:45 AM
Sun Transit: 1:00 PM
Sunset: 6:16 PM
Daylight: 10 hrs 32 mins
Moonrise: 8:34 AM
Moon Transit: 4:07 PM
Moonset: 9:11 PM
Moon Phase: Waxing Crescent
Moon Illumination: 5.2%

Best Times for Fishing or Hunting

Major Periods

2:19 AM - 4:49 AM
3:37 PM - 6:07 PM

Minor Periods

8:41 PM - 10:11 PM
8:04 AM - 9:34 AM

Action Rating: 4 out of 5

Friday, February 20, 2026

Weather Forecast

Blizzard
29.5°F
26.1°F
27.8°F
90%
0.27 in
84%
71%
25.9 mph
1


Air Quality

AQI: 1 - Good
PM2.5: 1.15 μg/m3
PM10: 1.21 μg/m3
Carbon Monoxide: 187.2 μg/m3
Nitrogen Dioxide: 1.64 μg/m3
Sulphur Dioxide: 0.87 μg/m3
Ozone: 72.54 μg/m3

Astronomical

Sunrise: 7:43 AM
Sun Transit: 1:00 PM
Sunset: 6:18 PM
Daylight: 10 hrs 35 mins
Moonrise: 8:50 AM
Moon Transit: 3:31 PM
Moonset: 10:30 PM
Moon Phase: Waxing Crescent
Moon Illumination: 11.3%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
3:01 PM - 5:31 PM

Minor Periods

10:00 PM - 11:30 PM
8:20 AM - 9:50 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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