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

16°F
Light snow
Light snow
-5.5°F
12°F
67%
N 35.1 mph
40.4 mph
-9.4°F
7.8°F
0.02 in
0%
1 mi
1011 mbar
0

Five Day Weather Forecast

Light freezing rain
Mon
H: 14°F
L: 10°F
Moderate or heavy snow showers
Tue
H: 16°F
L: 7°F
Partly Cloudy
Wed
H: 31°F
L: 20°F
Moderate rain
Thu
H: 35°F
L: 33°F
Light snow
Fri
H: 34°F
L: 31°F

Air Quality

AQI: 1 - Good
PM2.5: 1.88 μg/m3
PM10: 2.08 μg/m3
Carbon Monoxide: 186.68 μg/m3
Nitrogen Dioxide: 0.68 μg/m3
Sulphur Dioxide: 0.78 μg/m3
Ozone: 85 μg/m3

Astronomical

Sunrise: 7:57 AM
Sun Transit: 1:54 PM
Sunset: 7:53 PM
Daylight: 11 hrs 56 mins
Moonrise: 7:04 AM
Moon Transit: 12:04 AM
Moonset: 5:15 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.6%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
11:34 AM - 2:04 PM

Minor Periods

4:45 PM - 6:15 PM
6:34 AM - 8:04 AM

Action Rating: 3 out of 5

Wind Advisory issued March 16 at 1:46PM EDT until March 17 at 2:00AM EDT by NWS Marquette MI

Effective: Mon March 16, 2026, 1:46 PM
Expires: Mon March 16, 2026, 11:00 PM

* WHAT...North winds 15 to 25 mph with gusts up to 45 mph. * WHERE...Keweenaw County. * WHEN...Until 2 AM EDT Tuesday. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result.

Winds this strong can make driving difficult, especially for high profile vehicles. Use extra caution. Secure outdoor objects.


Lakeshore Flood Advisory issued March 16 at 9:54AM EDT until March 17 at 2:00AM EDT by NWS Marquette MI

Effective: Mon March 16, 2026, 9:54 AM
Expires: Tue March 17, 2026, 2:00 AM

* WHAT...Minor lakeshore flooding expected with wave heights of up to 17 feet possible. * WHERE...Keweenaw County. * WHEN...Until 2 AM EDT Tuesday. * IMPACTS...Some water on low lying roads and property along the lakeshore.

Residents on or near the shore should take appropriate action to protect property from rising water levels.
Monday, March 16, 2026

Weather Forecast

Light freezing rain
14.4°F
9.9°F
13°F
83%
0.1 in
71%
51%
45.4 mph
0.3


Air Quality

AQI: 1 - Good
PM2.5: 2.01 μg/m3
PM10: 2.3 μg/m3
Carbon Monoxide: 192.16 μg/m3
Nitrogen Dioxide: 0.8 μg/m3
Sulphur Dioxide: 0.91 μg/m3
Ozone: 85.96 μg/m3

Astronomical

Sunrise: 7:57 AM
Sun Transit: 1:54 PM
Sunset: 7:53 PM
Daylight: 11 hrs 56 mins
Moonrise: 7:04 AM
Moon Transit: 12:04 AM
Moonset: 5:15 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.6%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
11:34 AM - 2:04 PM

Minor Periods

4:45 PM - 6:15 PM
6:34 AM - 8:04 AM

Action Rating: 3 out of 5

Tuesday, March 17, 2026

Weather Forecast

Moderate or heavy snow showers
15.8°F
7.3°F
12.1°F
76%
0.09 in
64%
22%
32.4 mph
0.6


Air Quality

AQI: 1 - Good
PM2.5: 1.72 μg/m3
PM10: 1.93 μg/m3
Carbon Monoxide: 183.28 μg/m3
Nitrogen Dioxide: 0.76 μg/m3
Sulphur Dioxide: 1.31 μg/m3
Ozone: 90.04 μg/m3

Astronomical

Sunrise: 7:55 AM
Sun Transit: 1:54 PM
Sunset: 7:55 PM
Daylight: 12 hrs mins
Moonrise: 7:22 AM
Moon Transit: 12:50 AM
Moonset: 6:33 PM
Moon Phase: New
Moon Illumination: 0.1%

Best Times for Fishing or Hunting

Major Periods

12:25 AM - 2:55 AM
12:20 AM - 2:50 PM

Minor Periods

6:03 PM - 7:33 PM
6:52 AM - 8:22 AM

Action Rating: 5 out of 5

Wednesday, March 18, 2026

Weather Forecast

Partly Cloudy
31.2°F
19.9°F
25.3°F
78%
0 in
0%
0%
14.3 mph
0.6


Air Quality

AQI: 1 - Good
PM2.5: 3.59 μg/m3
PM10: 3.88 μg/m3
Carbon Monoxide: 186.12 μg/m3
Nitrogen Dioxide: 1.74 μg/m3
Sulphur Dioxide: 1.28 μg/m3
Ozone: 96.4 μg/m3

Astronomical

Sunrise: 7:53 AM
Sun Transit: 1:54 PM
Sunset: 7:56 PM
Daylight: 12 hrs 3 mins
Moonrise: 7:38 AM
Moon Transit: 1:36 PM
Moonset: 7:50 PM
Moon Phase: New
Moon Illumination: 2.2%

Best Times for Fishing or Hunting

Major Periods

1:11 AM - 3:41 AM
1:06 PM - 3:36 PM

Minor Periods

7:20 PM - 8:50 PM
7:08 AM - 8:38 AM

Action Rating: 3 out of 5

Thursday, March 19, 2026

Weather Forecast

Moderate rain
35.1°F
32.8°F
34.3°F
93%
0.55 in
88%
19%
12.8 mph
0.7


Air Quality

AQI: 1 - Good
PM2.5: 3.73 μg/m3
PM10: 3.87 μg/m3
Carbon Monoxide: 184.75 μg/m3
Nitrogen Dioxide: 1.67 μg/m3
Sulphur Dioxide: 0.94 μg/m3
Ozone: 99.72 μg/m3

Astronomical

Sunrise: 7:51 AM
Sun Transit: 12:00 AM
Sunset: 7:58 PM
Daylight: 12 hrs 7 mins
Moonrise: 7:55 AM
Moon Transit: 1:31 AM
Moonset: 9:10 PM
Moon Phase: New
Moon Illumination: 0.3%

Best Times for Fishing or Hunting

Major Periods

1:01 AM - 3:31 AM
1:01 AM - 3:31 AM

Minor Periods

8:40 PM - 10:10 PM
7:25 AM - 8:55 AM

Action Rating: 4 out of 5

Friday, March 20, 2026

Weather Forecast

Light snow
34.1°F
31.2°F
33°F
88%
0.09 in
89%
9%
23.7 mph
0.6


Air Quality

AQI: 1 - Good
PM2.5: 1.36 μg/m3
PM10: 1.49 μg/m3
Carbon Monoxide: 173.7 μg/m3
Nitrogen Dioxide: 1.43 μg/m3
Sulphur Dioxide: 0.82 μg/m3
Ozone: 92.69 μg/m3

Astronomical

Sunrise: 7:49 AM
Sun Transit: 10:27 AM
Sunset: 7:59 PM
Daylight: 12 hrs 10 mins
Moonrise: 8:13 AM
Moon Transit: 3:13 PM
Moonset: 10:33 PM
Moon Phase: New
Moon Illumination: 2.8%

Best Times for Fishing or Hunting

Major Periods

2:46 AM - 5:16 AM
2:43 PM - 5:13 PM

Minor Periods

10:03 PM - 11:33 PM
7:43 AM - 9:13 AM

Action Rating: 4 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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