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

53.1°F
Sunny
Sunny
51.1°F
53.5°F
86%
NW 6.5 mph
13.6 mph
50.5°F
46.6°F
0 in
0%
1 mi
1012 mbar
4.1

Five Day Weather Forecast

Sunny
Sat
H: 61°F
L: 48°F
Patchy rain nearby
Sun
H: 44°F
L: 42°F
Mist
Mon
H: 45°F
L: 41°F
Partly Cloudy
Tue
H: 49°F
L: 45°F
Moderate rain
Wed
H: 49°F
L: 45°F

Air Quality

AQI: 1 - Good
PM2.5: 5 μg/m3
PM10: 5.3 μg/m3
Carbon Monoxide: 95 μg/m3
Nitrogen Dioxide: 0.8 μg/m3
Sulphur Dioxide: 0.3 μg/m3
Ozone: 63 μg/m3

Astronomical

Sunrise: 5:48 AM
Sun Transit: 1:48 PM
Sunset: 9:47 PM
Daylight: 15 hrs 59 mins
Moonrise: 12:31 AM
Moon Transit: 7:03 PM
Moonset: 1:06 AM
Moon Phase: Waxing Crescent
Moon Illumination: 27.8%

Best Times for Fishing or Hunting

Major Periods

6:39 AM - 9:09 AM
6:33 PM - 9:03 PM

Minor Periods

12:01 AM - 1:31 PM
12:36 AM - 2:06 AM

Action Rating: 2 out of 5

Dense Fog Advisory issued June 20 at 1:56PM EDT until June 21 at 8:00AM EDT by NWS Marquette MI

Effective: Sat June 20, 2026, 1:56 PM
Expires: Sun June 21, 2026, 2:00 AM

* WHAT...Dense fog will reduce visibility to less than one nautical mile. * 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 AM EDT Sunday. * IMPACTS...Low visibility will make navigation difficult.

If you must navigate, proceed with caution. Use proper fog signals. Make sure all running lights are on. Remember to use your radar and compass.
Saturday, June 20, 2026

Weather Forecast

Sunny
61.2°F
48°F
54.3°F
78%
0 in
9%
0%
13 mph
6.6


Air Quality

AQI: 1 - Good
PM2.5: 7.12 μg/m3
PM10: 7.71 μg/m3
Carbon Monoxide: 97.67 μg/m3
Nitrogen Dioxide: 1.66 μg/m3
Sulphur Dioxide: 0.45 μg/m3
Ozone: 55.63 μg/m3

Astronomical

Sunrise: 5:48 AM
Sun Transit: 1:48 PM
Sunset: 9:47 PM
Daylight: 15 hrs 59 mins
Moonrise: 12:31 AM
Moon Transit: 7:03 PM
Moonset: 1:06 AM
Moon Phase: Waxing Crescent
Moon Illumination: 27.8%

Best Times for Fishing or Hunting

Major Periods

6:39 AM - 9:09 AM
6:33 PM - 9:03 PM

Minor Periods

12:01 AM - 1:31 PM
12:36 AM - 2:06 AM

Action Rating: 2 out of 5

Sunday, June 21, 2026

Weather Forecast

Patchy rain nearby
43.7°F
41.9°F
45.3°F
93%
0.02 in
68%
0%
6.9 mph
5.1


Air Quality

AQI: 1 - Good
PM2.5: 1.13 μg/m3
PM10: 1.18 μg/m3
Carbon Monoxide: 93.54 μg/m3
Nitrogen Dioxide: 1.17 μg/m3
Sulphur Dioxide: 0.24 μg/m3
Ozone: 50.63 μg/m3

Astronomical

Sunrise: 5:49 AM
Sun Transit: 1:48 PM
Sunset: 9:48 PM
Daylight: 15 hrs 59 mins
Moonrise: 1:43 PM
Moon Transit: 7:47 PM
Moonset: 1:22 AM
Moon Phase: First Quarter
Moon Illumination: 38.5%

Best Times for Fishing or Hunting

Major Periods

7:23 AM - 9:53 AM
7:17 PM - 9:47 PM

Minor Periods

1:13 PM - 2:43 PM
12:52 AM - 2:22 AM

Action Rating: 3 out of 5

Monday, June 22, 2026

Weather Forecast

Mist
45.3°F
40.6°F
43.6°F
95%
0 in
28%
0%
9.2 mph
7.3


Air Quality

AQI: 1 - Good
PM2.5: 0.51 μg/m3
PM10: 0.52 μg/m3
Carbon Monoxide: 88.88 μg/m3
Nitrogen Dioxide: 0.83 μg/m3
Sulphur Dioxide: 0.1 μg/m3
Ozone: 44 μg/m3

Astronomical

Sunrise: 5:49 AM
Sun Transit: 1:48 PM
Sunset: 9:48 PM
Daylight: 15 hrs 59 mins
Moonrise: 2:54 PM
Moon Transit: 8:29 PM
Moonset: 1:37 AM
Moon Phase: First Quarter
Moon Illumination: 49.7%

Best Times for Fishing or Hunting

Major Periods

8:06 AM - 10:36 AM
7:59 PM - 10:29 PM

Minor Periods

2:24 PM - 3:54 PM
1:07 AM - 2:37 AM

Action Rating: 2 out of 5

Tuesday, June 23, 2026

Weather Forecast

Partly Cloudy
49.2°F
45.3°F
47.2°F
89%
0 in
25%
0%
10.1 mph
5.9


Air Quality

AQI: 1 - Good
PM2.5: 0.77 μg/m3
PM10: 0.81 μg/m3
Carbon Monoxide: 95.72 μg/m3
Nitrogen Dioxide: 1.26 μg/m3
Sulphur Dioxide: 0.3 μg/m3
Ozone: 46.46 μg/m3

Astronomical

Sunrise: 5:49 AM
Sun Transit: 1:48 PM
Sunset: 9:48 PM
Daylight: 15 hrs 59 mins
Moonrise: 4:04 PM
Moon Transit: 9:12 PM
Moonset: 1:53 AM
Moon Phase: First Quarter
Moon Illumination: 61.0%

Best Times for Fishing or Hunting

Major Periods

8:48 AM - 11:18 AM
8:42 PM - 11:12 PM

Minor Periods

3:34 PM - 5:04 PM
1:23 AM - 2:53 AM

Action Rating: 2 out of 5

Wednesday, June 24, 2026

Weather Forecast

Moderate rain
48.6°F
45.2°F
46.9°F
98%
0.69 in
93%
0%
15.9 mph
5.6


Air Quality

AQI: 1 - Good
PM2.5: 1.11 μg/m3
PM10: 1.23 μg/m3
Carbon Monoxide: 114 μg/m3
Nitrogen Dioxide: 1.34 μg/m3
Sulphur Dioxide: 0.24 μg/m3
Ozone: 49.56 μg/m3

Astronomical

Sunrise: 5:49 AM
Sun Transit: 1:48 PM
Sunset: 9:48 PM
Daylight: 15 hrs 59 mins
Moonrise: 5:13 PM
Moon Transit: 9:56 PM
Moonset: 2:10 AM
Moon Phase: First Quarter
Moon Illumination: 71.7%

Best Times for Fishing or Hunting

Major Periods

9:32 AM - 12:02 AM
9:26 PM - 11:56 PM

Minor Periods

4:43 PM - 6:13 PM
1:40 AM - 3:10 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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