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

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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 / 0 meters

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 (109.6 km)
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 (95.0 mi)
Middle Branch Escanaba River, Humboldt, MI (96.6 mi)
Middle Branch Escanaba River, , MI (96.9 mi)
Lake Superior, Calumet, MI (97.0 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
Conditions: Light snow
Humidity: 67%
Feels Like: -6.1°F
Wind: W 37.8 mph
Wind Gusts: 43.5 mph
Pressure: 29.52 in
Precipitation: 0.03 in
Cloud Cover: 0%
Visibility: 0 mi
UV Index: 0

Five Day Weather Forecast

Light snow
Sat
H: 26°F
L: 13°F
Overcast
Sun
H: 18°F
L: 13°F
Patchy moderate snow
Mon
H: 33°F
L: 20°F
Blowing snow
Tue
H: 35°F
L: 27°F
Light freezing rain
Wed
H: 37°F
L: 27°F

Air Quality

AQI: 1 - Good
PM2.5: 1.08 μg/m3
PM10: 1.18 μg/m3
Carbon Monoxide: 145.68 μg/m3
Nitrogen Dioxide: 1.18 μg/m3
Sulphur Dioxide: 0.88 μg/m3
Ozone: 76 μg/m3

Astronomical

Sunrise: 8:32 AM
Sun Transit: 12:44 AM
Sunset: 4:57 PM
Daylight: 8 hrs 26 mins
Moonrise: 9:34 AM
Moon Transit: 1:18 PM
Moonset: 5:06 PM
Moon Phase: New
Moon Illumination: 0.0%

Best Times for Fishing or Hunting

Major Periods

12:50 AM - 3:20 AM
12:48 AM - 3:18 PM

Minor Periods

4:36 PM - 6:06 PM
9:04 AM - 10:34 AM

Action Rating: 4 out of 5

Wind Advisory issued December 20 at 2:41AM EST until December 21 at 1:00AM EST by NWS Marquette MI

Effective: Sat December 20, 2025, 2:41 AM
Expires: Sat December 20, 2025, 4:00 PM

* WHAT...Northwest winds 20 to 30 mph with gusts up to 45 mph expected. * WHERE...Keweenaw and Northern Houghton Counties. * WHEN...From 1 PM this afternoon to 1 AM EST Sunday. * IMPACTS...Gusty winds will blow around unsecured objects. Tree limbs could be blown down and a few power outages may result. Blowing and drifting snow may cause reductions in visibility.

Winds this strong can make driving difficult, especially for high profile vehicles. Use extra caution. Secure outdoor objects.
Saturday, December 20, 2025

Weather Forecast

Conditions: Light snow
Average Temperature: 18.9°F
Average Humidity: 81%
Chance of Rain: 63%
Wind: 38.3 mph
UV Index: 0.1

Air Quality

AQI: 1 - Good
PM2.5: 1.74 μg/m3
PM10: 1.85 μg/m3
Carbon Monoxide: 151.24 μg/m3
Nitrogen Dioxide: 1.84 μg/m3
Sulphur Dioxide: 1.09 μg/m3
Ozone: 76.72 μg/m3

Astronomical

Sunrise: 8:32 AM
Sun Transit: 12:44 AM
Sunset: 4:57 PM
Daylight: 8 hrs 26 mins
Moonrise: 9:34 AM
Moon Transit: 1:18 PM
Moonset: 5:06 PM
Moon Phase: New
Moon Illumination: 0.0%

Best Times for Fishing or Hunting

Major Periods

12:50 AM - 3:20 AM
12:48 AM - 3:18 PM

Minor Periods

4:36 PM - 6:06 PM
9:04 AM - 10:34 AM

Action Rating: 4 out of 5

Sunday, December 21, 2025

Weather Forecast

Conditions: Overcast
Average Temperature: 14.9°F
Average Humidity: 85%
Chance of Rain: 0%
Wind: 34.9 mph
UV Index: 0.1

Air Quality

AQI: 1 - Good
PM2.5: 1.14 μg/m3
PM10: 1.26 μg/m3
Carbon Monoxide: 144.28 μg/m3
Nitrogen Dioxide: 1.08 μg/m3
Sulphur Dioxide: 1.02 μg/m3
Ozone: 80 μg/m3

Astronomical

Sunrise: 8:32 AM
Sun Transit: 12:44 AM
Sunset: 4:58 PM
Daylight: 8 hrs 25 mins
Moonrise: 10:15 AM
Moon Transit: 2:10 PM
Moonset: 6:12 PM
Moon Phase: New
Moon Illumination: 1.5%

Best Times for Fishing or Hunting

Major Periods

1:42 AM - 4:12 AM
1:40 PM - 4:10 PM

Minor Periods

5:42 PM - 7:12 PM
9:45 AM - 11:15 AM

Action Rating: 3 out of 5

Monday, December 22, 2025

Weather Forecast

Conditions: Patchy moderate snow
Average Temperature: 28.2°F
Average Humidity: 73%
Chance of Rain: 68%
Wind: 19.2 mph
UV Index: 0.1

Air Quality

AQI: 1 - Good
PM2.5: 3.98 μg/m3
PM10: 4.54 μg/m3
Carbon Monoxide: 156.76 μg/m3
Nitrogen Dioxide: 2.99 μg/m3
Sulphur Dioxide: 1.5 μg/m3
Ozone: 73.76 μg/m3

Astronomical

Sunrise: 8:33 AM
Sun Transit: 12:45 AM
Sunset: 4:58 PM
Daylight: 8 hrs 26 mins
Moonrise: 10:47 AM
Moon Transit: 3:00 PM
Moonset: 7:22 PM
Moon Phase: Waxing Crescent
Moon Illumination: 5.5%

Best Times for Fishing or Hunting

Major Periods

2:34 AM - 5:04 AM
2:30 PM - 5:00 PM

Minor Periods

6:52 PM - 8:22 PM
10:17 AM - 11:47 AM

Action Rating: 3 out of 5

Tuesday, December 23, 2025

Weather Forecast

Conditions: Blowing snow
Average Temperature: 32.5°F
Average Humidity: 84%
Chance of Rain: 89%
Wind: 20.8 mph
UV Index: 0.1

Air Quality

AQI: 1 - Good
PM2.5: 2.45 μg/m3
PM10: 2.59 μg/m3
Carbon Monoxide: 168.89 μg/m3
Nitrogen Dioxide: 4.6 μg/m3
Sulphur Dioxide: 2.49 μg/m3
Ozone: 59.04 μg/m3

Astronomical

Sunrise: 8:33 AM
Sun Transit: 12:45 AM
Sunset: 4:59 PM
Daylight: 8 hrs 26 mins
Moonrise: 11:11 AM
Moon Transit: 3:48 PM
Moonset: 8:36 PM
Moon Phase: Waxing Crescent
Moon Illumination: 11.7%

Best Times for Fishing or Hunting

Major Periods

3:23 AM - 5:53 AM
3:18 PM - 5:48 PM

Minor Periods

8:06 PM - 9:36 PM
10:41 AM - 12:11 AM

Action Rating: 2 out of 5

Wednesday, December 24, 2025

Weather Forecast

Conditions: Light freezing rain
Average Temperature: 30.6°F
Average Humidity: 78%
Chance of Rain: 76%
Wind: 16.8 mph
UV Index: 0

Air Quality

AQI: 1 - Good
PM2.5: 1.35 μg/m3
PM10: 1.42 μg/m3
Carbon Monoxide: 164.39 μg/m3
Nitrogen Dioxide: 1.23 μg/m3
Sulphur Dioxide: 1.11 μg/m3
Ozone: 71.77 μg/m3

Astronomical

Sunrise: 8:33 AM
Sun Transit: 12:46 AM
Sunset: 4:59 PM
Daylight: 8 hrs 26 mins
Moonrise: 11:31 AM
Moon Transit: 4:34 PM
Moonset: 9:49 PM
Moon Phase: Waxing Crescent
Moon Illumination: 19.9%

Best Times for Fishing or Hunting

Major Periods

4:09 AM - 6:39 AM
4:04 PM - 6:34 PM

Minor Periods

9:19 PM - 10:49 PM
11:01 AM - 12:31 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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