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

63°F
Patchy rain nearby
Patchy rain nearby
63°F
65.5°F
84%
SE 14.8 mph
31 mph
65.5°F
59.3°F
0 in
0%
6 mi
1011 mbar
0.2

Five Day Weather Forecast

Sunny
Mon
H: 75°F
L: 54°F
Patchy rain nearby
Tue
H: 60°F
L: 53°F
Patchy rain nearby
Wed
H: 58°F
L: 50°F
Patchy rain nearby
Thu
H: 61°F
L: 51°F
Fog
Fri
H: 56°F
L: 50°F

Air Quality

PM2.5: 5.1 μg/m3
PM10: 5.3 μg/m3
Carbon Monoxide: 116 μg/m3
Nitrogen Dioxide: 1.1 μg/m3
Sulphur Dioxide: 0.4 μg/m3
Ozone: 98 μg/m3

Astronomical

Sunrise: 5:52 AM
Sun Transit: 1:49 PM
Sunset: 9:48 PM
Daylight: 15 hrs 56 mins
Moonrise: 10:13 PM
Moon Transit: 1:12 AM
Moonset: 4:58 AM
Moon Phase: Full
Moon Illumination: 100.0%

Best Times for Fishing or Hunting

Major Periods

12:42 AM - 3:12 AM
1:36 PM - 4:06 PM

Minor Periods

9:43 PM - 11:13 PM
4:28 AM - 5:58 AM

Action Rating: 5 out of 5

Small Craft Advisory issued June 29 at 12:12AM EDT until June 30 at 6:00AM EDT by NWS Marquette MI

Effective: Mon June 29, 2026, 12:12 AM
Expires: Mon June 29, 2026, 12:15 PM

* WHAT...Southeast winds 10 to 15 kt with gusts up to 25 kt and waves 1 to 4 ft expected. * WHERE...Eagle River to Manitou Island MI and Manitou Island to Point Isabelle MI. * WHEN...From 8 AM this morning to 6 AM EDT Tuesday. * IMPACTS...Conditions will be hazardous to small craft.

Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions.


Small Craft Advisory issued June 29 at 12:12AM EDT until June 30 at 2:00AM EDT by NWS Marquette MI

Effective: Mon June 29, 2026, 12:12 AM
Expires: Mon June 29, 2026, 12:15 PM

* WHAT...East winds 10 to 25 kt and waves 1 to 4 ft expected. * WHERE...Point Isabelle to Lower Entrance of Portage Canal MI. * WHEN...From 2 PM this afternoon to 2 AM EDT Tuesday. * IMPACTS...Conditions will be hazardous to small craft.

Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions.
Monday, June 29, 2026

Weather Forecast

Sunny
74.5°F
54°F
64.2°F
87%
0.03 in
49%
0%
17 mph
4.6


Air Quality

AQI: 1 - Good
PM2.5: 4.23 μg/m3
PM10: 4.39 μg/m3
Carbon Monoxide: 124.63 μg/m3
Nitrogen Dioxide: 1.02 μg/m3
Sulphur Dioxide: 0.31 μg/m3
Ozone: 95.63 μg/m3

Astronomical

Sunrise: 5:52 AM
Sun Transit: 1:49 PM
Sunset: 9:48 PM
Daylight: 15 hrs 56 mins
Moonrise: 10:13 PM
Moon Transit: 1:12 AM
Moonset: 4:58 AM
Moon Phase: Full
Moon Illumination: 100.0%

Best Times for Fishing or Hunting

Major Periods

12:42 AM - 3:12 AM
1:36 PM - 4:06 PM

Minor Periods

9:43 PM - 11:13 PM
4:28 AM - 5:58 AM

Action Rating: 5 out of 5

Tuesday, June 30, 2026

Weather Forecast

Patchy rain nearby
60.1°F
52.5°F
56.3°F
99%
0.59 in
92%
0%
17 mph
7.3


Air Quality

AQI: 1 - Good
PM2.5: 3.07 μg/m3
PM10: 3.38 μg/m3
Carbon Monoxide: 117.83 μg/m3
Nitrogen Dioxide: 1.03 μg/m3
Sulphur Dioxide: 0.2 μg/m3
Ozone: 87.46 μg/m3

Astronomical

Sunrise: 5:52 AM
Sun Transit: 1:50 PM
Sunset: 9:48 PM
Daylight: 15 hrs 55 mins
Moonrise: 10:49 PM
Moon Transit: 2:03 AM
Moonset: 5:58 AM
Moon Phase: Full
Moon Illumination: 98.6%

Best Times for Fishing or Hunting

Major Periods

1:33 AM - 4:03 AM
2:27 PM - 4:57 PM

Minor Periods

10:19 PM - 11:49 PM
5:28 AM - 6:58 AM

Action Rating: 4 out of 5

Wednesday, July 1, 2026

Weather Forecast

Patchy rain nearby
57.9°F
50.4°F
53.8°F
97%
0.16 in
85%
0%
18.1 mph
8.1


Air Quality

AQI: 1 - Good
PM2.5: 1.88 μg/m3
PM10: 2.54 μg/m3
Carbon Monoxide: 121.86 μg/m3
Nitrogen Dioxide: 1.23 μg/m3
Sulphur Dioxide: 0.15 μg/m3
Ozone: 72.92 μg/m3

Astronomical

Sunrise: 5:53 AM
Sun Transit: 1:50 PM
Sunset: 9:47 PM
Daylight: 15 hrs 55 mins
Moonrise: 11:16 PM
Moon Transit: 2:53 AM
Moonset: 7:05 AM
Moon Phase: Full
Moon Illumination: 94.7%

Best Times for Fishing or Hunting

Major Periods

2:23 AM - 4:53 AM
3:15 PM - 5:45 PM

Minor Periods

12:00 AM - 12:00 AM
6:35 AM - 8:05 AM

Action Rating: 3 out of 5

Thursday, July 2, 2026

Weather Forecast

Patchy rain nearby
61°F
50.6°F
54.7°F
99%
0.83 in
92%
0%
18.1 mph
5


Air Quality

AQI: 1 - Good
PM2.5: 0.52 μg/m3
PM10: 0.67 μg/m3
Carbon Monoxide: 166.1 μg/m3
Nitrogen Dioxide: 1.19 μg/m3
Sulphur Dioxide: 0.14 μg/m3
Ozone: 71.1 μg/m3

Astronomical

Sunrise: 5:53 AM
Sun Transit: 1:50 PM
Sunset: 9:47 PM
Daylight: 15 hrs 54 mins
Moonrise: 12:16 AM
Moon Transit: 3:41 AM
Moonset: 8:15 AM
Moon Phase: Waning Gibbous
Moon Illumination: 88.5%

Best Times for Fishing or Hunting

Major Periods

3:11 AM - 5:41 AM
4:02 PM - 6:32 PM

Minor Periods

7:45 AM - 9:15 AM
12:00 AM - 12:00 AM

Action Rating: 3 out of 5

Friday, July 3, 2026

Weather Forecast

Fog
56.3°F
49.8°F
52.9°F
100%
0.05 in
81%
0%
10.1 mph
3


Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 5:54 AM
Sun Transit: 1:50 PM
Sunset: 9:47 PM
Daylight: 15 hrs 53 mins
Moonrise: 12:38 AM
Moon Transit: 4:26 AM
Moonset: 9:25 AM
Moon Phase: Waning Gibbous
Moon Illumination: 80.3%

Best Times for Fishing or Hunting

Major Periods

3:56 AM - 6:26 AM
4:46 PM - 7:16 PM

Minor Periods

8:55 AM - 10:25 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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