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

28°F
Partly Cloudy
Partly Cloudy
16.8°F
24.2°F
60%
NW 14.3 mph
19.5 mph
12.6°F
14°F
0 in
0%
4 mi
1016 mbar
0

Five Day Weather Forecast

Overcast
Thu
H: 26°F
L: 21°F
Blowing snow
Fri
H: 33°F
L: 22°F
Moderate or heavy snow showers
Sat
H: 24°F
L: 18°F
Blowing snow
Sun
H: 27°F
L: 20°F
Blizzard
Mon
H: 16°F
L: 11°F

Air Quality

AQI: 1 - Good
PM2.5: 2.58 μg/m3
PM10: 3.48 μg/m3
Carbon Monoxide: 174.68 μg/m3
Nitrogen Dioxide: 0.78 μg/m3
Sulphur Dioxide: 0.88 μg/m3
Ozone: 86 μg/m3

Astronomical

Sunrise: 8:05 AM
Sun Transit: 1:56 PM
Sunset: 7:48 PM
Daylight: 11 hrs 42 mins
Moonrise: 5:03 AM
Moon Transit: 8:45 AM
Moonset: 12:30 AM
Moon Phase: Last Quarter
Moon Illumination: 25.6%

Best Times for Fishing or Hunting

Major Periods

8:15 AM - 10:45 AM
9:09 PM - 11:39 PM

Minor Periods

12:00 AM - 1:30 PM
4:33 AM - 6:03 AM

Action Rating: 3 out of 5

Winter Storm Watch issued March 11 at 2:27PM EDT until March 13 at 2:00PM EDT by NWS Marquette MI

Effective: Wed March 11, 2026, 2:27 PM
Expires: Thu March 12, 2026, 12:45 AM

* WHAT...Heavy snow possible. Total snow accumulations between 7 and 12 inches possible. Winds could gust as high as 45 mph. * WHERE...Keweenaw and Northern Houghton Counties. * WHEN...From Thursday evening through Friday afternoon. * IMPACTS...Whiteout conditions are possible and may make travel treacherous. Travel could be very difficult to impossible. The hazardous conditions could impact the Friday morning commute. * ADDITIONAL DETAILS...Isolated power outages are possible due to strong winds.

Monitor the latest forecasts for updates on this situation.


Winter Storm Watch issued March 11 at 8:15PM EDT until March 13 at 2:00PM EDT by NWS Marquette MI

Effective: Wed March 11, 2026, 8:15 PM
Expires: Thu March 12, 2026, 4:15 AM

* WHAT...Heavy snow possible. Total snow accumulations between 7 and 12 inches possible. Winds could gust as high as 45 mph. * WHERE...Keweenaw and Northern Houghton Counties. * WHEN...From Thursday evening through Friday afternoon. * IMPACTS...Whiteout conditions are possible and may make travel treacherous. Travel could be very difficult to impossible. The hazardous conditions could impact the Friday morning commute. * ADDITIONAL DETAILS...Isolated power outages are possible due to strong winds.

Monitor the latest forecasts for updates on this situation.
Thursday, March 12, 2026

Weather Forecast

Overcast
25.7°F
21.4°F
24.2°F
73%
0 in
0%
0%
21.5 mph
0.6


Air Quality

AQI: 1 - Good
PM2.5: 2.4 μg/m3
PM10: 3.12 μg/m3
Carbon Monoxide: 171.36 μg/m3
Nitrogen Dioxide: 0.87 μg/m3
Sulphur Dioxide: 0.89 μg/m3
Ozone: 86.88 μg/m3

Astronomical

Sunrise: 8:05 AM
Sun Transit: 1:56 PM
Sunset: 7:48 PM
Daylight: 11 hrs 42 mins
Moonrise: 5:03 AM
Moon Transit: 8:45 AM
Moonset: 12:30 AM
Moon Phase: Last Quarter
Moon Illumination: 25.6%

Best Times for Fishing or Hunting

Major Periods

8:15 AM - 10:45 AM
9:09 PM - 11:39 PM

Minor Periods

12:00 AM - 1:30 PM
4:33 AM - 6:03 AM

Action Rating: 3 out of 5

Friday, March 13, 2026

Weather Forecast

Blowing snow
32.7°F
22.2°F
27.8°F
92%
1.11 in
84%
56%
40.3 mph
0


Air Quality

AQI: 1 - Good
PM2.5: 1.71 μg/m3
PM10: 2.19 μg/m3
Carbon Monoxide: 163.64 μg/m3
Nitrogen Dioxide: 1.01 μg/m3
Sulphur Dioxide: 0.98 μg/m3
Ozone: 93.2 μg/m3

Astronomical

Sunrise: 8:03 AM
Sun Transit: 1:55 PM
Sunset: 7:49 PM
Daylight: 11 hrs 46 mins
Moonrise: 5:45 AM
Moon Transit: 9:37 AM
Moonset: 1:34 PM
Moon Phase: Waning Crescent
Moon Illumination: 16.4%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
9:07 AM - 11:37 AM

Minor Periods

1:04 PM - 2:34 PM
5:15 AM - 6:45 AM

Action Rating: 2 out of 5

Saturday, March 14, 2026

Weather Forecast

Moderate or heavy snow showers
24.1°F
18.1°F
21.1°F
76%
0.08 in
81%
8%
16.8 mph
1


Air Quality

AQI: 1 - Good
PM2.5: 1.74 μg/m3
PM10: 2.19 μg/m3
Carbon Monoxide: 166.6 μg/m3
Nitrogen Dioxide: 0.97 μg/m3
Sulphur Dioxide: 0.97 μg/m3
Ozone: 91.36 μg/m3

Astronomical

Sunrise: 8:01 AM
Sun Transit: 1:55 PM
Sunset: 7:51 PM
Daylight: 11 hrs 49 mins
Moonrise: 6:18 AM
Moon Transit: 10:27 AM
Moonset: 2:46 PM
Moon Phase: Waning Crescent
Moon Illumination: 8.9%

Best Times for Fishing or Hunting

Major Periods

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

Minor Periods

2:16 PM - 3:46 PM
5:48 AM - 7:18 AM

Action Rating: 2 out of 5

Sunday, March 15, 2026

Weather Forecast

Blowing snow
26.7°F
19.6°F
22.7°F
78%
0.03 in
82%
53%
31.8 mph
1


Air Quality

AQI: 1 - Good
PM2.5: 2.31 μg/m3
PM10: 2.93 μg/m3
Carbon Monoxide: 161.1 μg/m3
Nitrogen Dioxide: 1.01 μg/m3
Sulphur Dioxide: 1.07 μg/m3
Ozone: 89 μg/m3

Astronomical

Sunrise: 7:59 AM
Sun Transit: 1:55 PM
Sunset: 7:52 PM
Daylight: 11 hrs 53 mins
Moonrise: 6:43 AM
Moon Transit: 11:16 AM
Moonset: 4:00 PM
Moon Phase: Waning Crescent
Moon Illumination: 3.6%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
10:46 AM - 1:16 PM

Minor Periods

3:30 PM - 5:00 PM
6:13 AM - 7:43 AM

Action Rating: 3 out of 5

Monday, March 16, 2026

Weather Forecast

Blizzard
15.7°F
11.2°F
15°F
85%
0.27 in
63%
63%
44.1 mph
1


Air Quality

AQI: 1 - Good
PM2.5: 1.22 μg/m3
PM10: 1.49 μg/m3
Carbon Monoxide: 170.12 μg/m3
Nitrogen Dioxide: 0.74 μg/m3
Sulphur Dioxide: 0.88 μg/m3
Ozone: 82.23 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

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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