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
Partly Cloudy
Partly Cloudy
-3.5°F
14°F
80%
SSE 27.3 mph
31.4 mph
-2.6°F
9.2°F
0 in
0%
0 mi
1007 mbar
0

Five Day Weather Forecast

Moderate or heavy snow showers
Tue
H: 26°F
L: 2°F
Overcast
Wed
H: 18°F
L: 14°F
Overcast
Thu
H: 30°F
L: 18°F
Light freezing rain
Fri
H: 37°F
L: 23°F
Blowing snow
Sat
H: 14°F
L: 10°F

Air Quality

AQI: 1 - Good
PM2.5: 6.08 μg/m3
PM10: 6.48 μg/m3
Carbon Monoxide: 171.68 μg/m3
Nitrogen Dioxide: 2.88 μg/m3
Sulphur Dioxide: 1.58 μg/m3
Ozone: 80 μg/m3

Astronomical

Sunrise: 7:36 AM
Sun Transit: 1:00 PM
Sunset: 6:24 PM
Daylight: 10 hrs 48 mins
Moonrise: 10:35 AM
Moon Transit: 7:09 PM
Moonset: 2:37 AM
Moon Phase: First Quarter
Moon Illumination: 51.1%

Best Times for Fishing or Hunting

Major Periods

6:37 AM - 9:07 AM
6:39 PM - 9:09 PM

Minor Periods

10:05 AM - 11:35 AM
2:07 AM - 3:37 AM

Action Rating: 3 out of 5

Winter Weather Advisory issued February 23 at 7:42PM EST until February 24 at 3:00PM EST by NWS Marquette MI

Effective: Mon February 23, 2026, 7:42 PM
Expires: Tue February 24, 2026, 7:00 AM

* WHAT...Snow and blowing snow expected. Total snow accumulations between 2 and 5 inches, with up to 7 inches in the Keweenaw. Winds gusting as high as 35 mph. * WHERE...Baraga, Marquette, Keweenaw, Northern Houghton, and Southern Houghton Counties. * WHEN...From 9 AM to 3 PM EST Tuesday. * IMPACTS...Travel could be difficult at times. Areas of blowing snow will significantly reduce visibility. The hazardous conditions will impact the Tuesday morning commute. * ADDITIONAL DETAILS...Expect snowfall rates as high as one inch per hour for a period of 2 to 4 hours. This combined with gusty winds will result in poor visiblity and difficult travel.

Travel could be difficult at times.


Winter Weather Advisory issued February 24 at 6:40AM EST until February 24 at 3:00PM EST by NWS Marquette MI

Effective: Tue February 24, 2026, 6:40 AM
Expires: Tue February 24, 2026, 2:45 PM

* WHAT...Snow and blowing snow expected. Total snow accumulations between 3 and 6 inches. Winds gusting as high as 45 mph. * WHERE...Baraga, Marquette, Keweenaw, Northern Houghton, and Southern Houghton Counties. * WHEN...Until 3 PM EST this afternoon. * IMPACTS...Travel could be difficult at times. Areas of blowing snow will significantly reduce visibility. The hazardous conditions will impact the Tuesday morning commute. Gusty winds could bring down tree branches. * ADDITIONAL DETAILS...Expect snowfall rates of one half inch to one inch per hour for a period of 2 to 4 hours. This combined with gusty winds will result in very poor visibility and travel conditions.

Slow down and use caution if you must travel. Prepare for possible power outages.
Tuesday, February 24, 2026

Weather Forecast

Moderate or heavy snow showers
25.7°F
1.9°F
17.4°F
78%
0.22 in
81%
32%
32 mph
0.1


Air Quality

AQI: 1 - Good
PM2.5: 2.95 μg/m3
PM10: 3.19 μg/m3
Carbon Monoxide: 161.92 μg/m3
Nitrogen Dioxide: 1.86 μg/m3
Sulphur Dioxide: 1.26 μg/m3
Ozone: 84.92 μg/m3

Astronomical

Sunrise: 7:36 AM
Sun Transit: 1:00 PM
Sunset: 6:24 PM
Daylight: 10 hrs 48 mins
Moonrise: 10:35 AM
Moon Transit: 7:09 PM
Moonset: 2:37 AM
Moon Phase: First Quarter
Moon Illumination: 51.1%

Best Times for Fishing or Hunting

Major Periods

6:37 AM - 9:07 AM
6:39 PM - 9:09 PM

Minor Periods

10:05 AM - 11:35 AM
2:07 AM - 3:37 AM

Action Rating: 3 out of 5

Wednesday, February 25, 2026

Weather Forecast

Overcast
17.9°F
14°F
17.6°F
79%
0 in
0%
3%
30 mph
0.3


Air Quality

AQI: 1 - Good
PM2.5: 1.81 μg/m3
PM10: 1.94 μg/m3
Carbon Monoxide: 162.96 μg/m3
Nitrogen Dioxide: 1.43 μg/m3
Sulphur Dioxide: 1.05 μg/m3
Ozone: 81.68 μg/m3

Astronomical

Sunrise: 7:34 AM
Sun Transit: 1:00 PM
Sunset: 6:26 PM
Daylight: 10 hrs 52 mins
Moonrise: 11:26 AM
Moon Transit: 8:11 PM
Moonset: 3:53 AM
Moon Phase: First Quarter
Moon Illumination: 62.3%

Best Times for Fishing or Hunting

Major Periods

7:38 AM - 10:08 AM
7:41 PM - 10:11 PM

Minor Periods

10:56 AM - 12:26 AM
3:23 AM - 4:53 AM

Action Rating: 3 out of 5

Thursday, February 26, 2026

Weather Forecast

Overcast
29.6°F
17.6°F
22.5°F
75%
0 in
0%
0%
11.6 mph
0.3


Air Quality

AQI: 1 - Good
PM2.5: 2.34 μg/m3
PM10: 2.64 μg/m3
Carbon Monoxide: 156.28 μg/m3
Nitrogen Dioxide: 1.31 μg/m3
Sulphur Dioxide: 1.25 μg/m3
Ozone: 83.6 μg/m3

Astronomical

Sunrise: 7:32 AM
Sun Transit: 1:00 PM
Sunset: 6:27 PM
Daylight: 10 hrs 55 mins
Moonrise: 12:32 AM
Moon Transit: 9:14 PM
Moonset: 4:57 AM
Moon Phase: First Quarter
Moon Illumination: 72.9%

Best Times for Fishing or Hunting

Major Periods

8:41 AM - 11:11 AM
8:44 PM - 11:14 PM

Minor Periods

12:02 AM - 1:32 PM
4:27 AM - 5:57 AM

Action Rating: 2 out of 5

Friday, February 27, 2026

Weather Forecast

Light freezing rain
37.1°F
23.4°F
31.3°F
85%
0.01 in
89%
7%
36 mph
0.3


Air Quality

AQI: 1 - Good
PM2.5: 4.19 μg/m3
PM10: 4.45 μg/m3
Carbon Monoxide: 173.14 μg/m3
Nitrogen Dioxide: 2.9 μg/m3
Sulphur Dioxide: 1.11 μg/m3
Ozone: 84.72 μg/m3

Astronomical

Sunrise: 7:30 AM
Sun Transit: 1:00 PM
Sunset: 6:29 PM
Daylight: 10 hrs 58 mins
Moonrise: 1:49 PM
Moon Transit: 10:13 PM
Moonset: 5:45 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 82.3%

Best Times for Fishing or Hunting

Major Periods

9:42 AM - 12:12 AM
12:00 AM - 12:00 AM

Minor Periods

1:19 PM - 2:49 PM
5:15 AM - 6:45 AM

Action Rating: 2 out of 5

Saturday, February 28, 2026

Weather Forecast

Blowing snow
13.6°F
10.3°F
14.7°F
77%
0.02 in
81%
69%
35.6 mph
0


Air Quality

AQI: 1 - Good
PM2.5: 1.27 μg/m3
PM10: 1.45 μg/m3
Carbon Monoxide: 161.55 μg/m3
Nitrogen Dioxide: 1.29 μg/m3
Sulphur Dioxide: 0.97 μg/m3
Ozone: 84.77 μg/m3

Astronomical

Sunrise: 7:28 AM
Sun Transit: 12:58 AM
Sunset: 6:30 PM
Daylight: 11 hrs 2 mins
Moonrise: 3:12 PM
Moon Transit: 11:08 PM
Moonset: 6:22 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 90.1%

Best Times for Fishing or Hunting

Major Periods

10:40 AM - 1:10 PM
12:00 AM - 12:00 AM

Minor Periods

2:42 PM - 4:12 PM
5:52 AM - 7:22 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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