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

30.9°F
Light snow
Light snow
20.1°F
31.4°F
92%
SE 15.2 mph
21.8 mph
22.5°F
30.8°F
0.01 in
0%
1 mi
1004 mbar
1

Five Day Weather Forecast

Light snow
Thu
H: 34°F
L: 26°F
Moderate or heavy snow showers
Fri
H: 32°F
L: 20°F
Moderate or heavy snow showers
Sat
H: 25°F
L: 19°F
Patchy moderate snow
Sun
H: 23°F
L: 16°F
Light snow showers
Mon
H: 18°F
L: 16°F

Air Quality

AQI: 1 - Good
PM2.5: 2.58 μg/m3
PM10: 2.68 μg/m3
Carbon Monoxide: 186.68 μg/m3
Nitrogen Dioxide: 3.28 μg/m3
Sulphur Dioxide: 1.18 μg/m3
Ozone: 77 μg/m3

Astronomical

Sunrise: 7:45 AM
Sun Transit: 1:00 PM
Sunset: 6:16 PM
Daylight: 10 hrs 32 mins
Moonrise: 8:34 AM
Moon Transit: 4:07 PM
Moonset: 9:11 PM
Moon Phase: Waxing Crescent
Moon Illumination: 5.2%

Best Times for Fishing or Hunting

Major Periods

2:19 AM - 4:49 AM
3:37 PM - 6:07 PM

Minor Periods

8:41 PM - 10:11 PM
8:04 AM - 9:34 AM

Action Rating: 4 out of 5

Winter Storm Warning issued February 19 at 1:06AM EST until February 19 at 7:00AM EST by NWS Marquette MI

Effective: Thu February 19, 2026, 1:06 AM
Expires: Thu February 19, 2026, 9:15 AM

* WHAT...For the Winter Storm Warning, moderate to heavy snowfall and areas of blowing snow. Additional snow accumulations between 1 and 3 inches. Winds gusting as high as 45 mph. For the Winter Weather Advisory, moderate snowfall expected. Total snow accumulations up to two inches. Winds gusting as high as 35 mph. * WHERE...Keweenaw and Northern Houghton Counties. * WHEN...For the Winter Storm Warning, until 7 AM EST this morning. For the Winter Weather Advisory, from 7 AM this morning to 1 PM EST this afternoon. * IMPACTS...Plan on slippery road conditions. Areas of blowing snow will significantly reduce visibility. The hazardous conditions will impact the Thursday morning commute. Gusty winds could bring down tree branches.

Slow down and use caution while traveling. If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. Prepare for possible power outages.


Winter Weather Advisory issued February 19 at 1:06AM EST until February 19 at 1:00PM EST by NWS Marquette MI

Effective: Thu February 19, 2026, 1:06 AM
Expires: Thu February 19, 2026, 9:15 AM

* WHAT...For the Winter Storm Warning, moderate to heavy snowfall and areas of blowing snow. Additional snow accumulations between 1 and 3 inches. Winds gusting as high as 45 mph. For the Winter Weather Advisory, moderate snowfall expected. Total snow accumulations up to two inches. Winds gusting as high as 35 mph. * WHERE...Keweenaw and Northern Houghton Counties. * WHEN...For the Winter Storm Warning, until 7 AM EST this morning. For the Winter Weather Advisory, from 7 AM this morning to 1 PM EST this afternoon. * IMPACTS...Plan on slippery road conditions. Areas of blowing snow will significantly reduce visibility. The hazardous conditions will impact the Thursday morning commute. Gusty winds could bring down tree branches.

Slow down and use caution while traveling. If you must travel, keep an extra flashlight, food, and water in your vehicle in case of an emergency. Prepare for possible power outages.


Winter Weather Advisory issued February 19 at 7:14AM EST until February 19 at 1:00PM EST by NWS Marquette MI

Effective: Thu February 19, 2026, 7:14 AM
Expires: Thu February 19, 2026, 1:00 PM

* WHAT...Snow. Additional snow accumulations up to two inches. Winds gusting as high as 35 mph. * WHERE...Keweenaw and Northern Houghton Counties. * WHEN...Until 1 PM EST this afternoon. * IMPACTS...Plan on slippery road conditions. The hazardous conditions will impact the Thursday morning commute.

Slow down and use caution while traveling.
Thursday, February 19, 2026

Weather Forecast

Light snow
33.6°F
26.2°F
30.2°F
91%
0.25 in
84%
65%
26.6 mph
0.3


Air Quality

AQI: 1 - Good
PM2.5: 1.44 μg/m3
PM10: 1.5 μg/m3
Carbon Monoxide: 179.28 μg/m3
Nitrogen Dioxide: 1.83 μg/m3
Sulphur Dioxide: 1.08 μg/m3
Ozone: 81.36 μg/m3

Astronomical

Sunrise: 7:45 AM
Sun Transit: 1:00 PM
Sunset: 6:16 PM
Daylight: 10 hrs 32 mins
Moonrise: 8:34 AM
Moon Transit: 4:07 PM
Moonset: 9:11 PM
Moon Phase: Waxing Crescent
Moon Illumination: 5.2%

Best Times for Fishing or Hunting

Major Periods

2:19 AM - 4:49 AM
3:37 PM - 6:07 PM

Minor Periods

8:41 PM - 10:11 PM
8:04 AM - 9:34 AM

Action Rating: 4 out of 5

Friday, February 20, 2026

Weather Forecast

Moderate or heavy snow showers
31.5°F
20.2°F
28.2°F
95%
1.37 in
88%
39%
18.3 mph
0.2


Air Quality

AQI: 1 - Good
PM2.5: 2.33 μg/m3
PM10: 2.55 μg/m3
Carbon Monoxide: 182.24 μg/m3
Nitrogen Dioxide: 2.17 μg/m3
Sulphur Dioxide: 1.26 μg/m3
Ozone: 83.64 μg/m3

Astronomical

Sunrise: 7:43 AM
Sun Transit: 1:00 PM
Sunset: 6:18 PM
Daylight: 10 hrs 35 mins
Moonrise: 8:50 AM
Moon Transit: 3:31 PM
Moonset: 10:30 PM
Moon Phase: Waxing Crescent
Moon Illumination: 11.3%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
3:01 PM - 5:31 PM

Minor Periods

10:00 PM - 11:30 PM
8:20 AM - 9:50 AM

Action Rating: 2 out of 5

Saturday, February 21, 2026

Weather Forecast

Moderate or heavy snow showers
24.8°F
19.2°F
22.9°F
90%
0.74 in
75%
39%
13.9 mph
0.4


Air Quality

AQI: 1 - Good
PM2.5: 1.36 μg/m3
PM10: 1.56 μg/m3
Carbon Monoxide: 153.84 μg/m3
Nitrogen Dioxide: 1.04 μg/m3
Sulphur Dioxide: 1.13 μg/m3
Ozone: 90.72 μg/m3

Astronomical

Sunrise: 7:41 AM
Sun Transit: 1:00 PM
Sunset: 6:19 PM
Daylight: 10 hrs 38 mins
Moonrise: 9:08 AM
Moon Transit: 4:20 PM
Moonset: 11:51 PM
Moon Phase: Waxing Crescent
Moon Illumination: 19.4%

Best Times for Fishing or Hunting

Major Periods

3:53 AM - 6:23 AM
3:50 PM - 6:20 PM

Minor Periods

12:00 AM - 12:00 AM
8:38 AM - 10:08 AM

Action Rating: 3 out of 5

Sunday, February 22, 2026

Weather Forecast

Patchy moderate snow
22.8°F
16.3°F
20.2°F
85%
0.03 in
60%
22%
21.5 mph
0.4


Air Quality

AQI: 1 - Good
PM2.5: 1.13 μg/m3
PM10: 1.26 μg/m3
Carbon Monoxide: 148.5 μg/m3
Nitrogen Dioxide: 0.97 μg/m3
Sulphur Dioxide: 1.1 μg/m3
Ozone: 87.12 μg/m3

Astronomical

Sunrise: 7:39 AM
Sun Transit: 1:00 PM
Sunset: 6:21 PM
Daylight: 10 hrs 42 mins
Moonrise: 9:29 AM
Moon Transit: 5:12 PM
Moonset: 12:51 AM
Moon Phase: Waxing Crescent
Moon Illumination: 29.1%

Best Times for Fishing or Hunting

Major Periods

4:44 AM - 7:14 AM
4:42 PM - 7:12 PM

Minor Periods

8:59 AM - 10:29 AM
12:00 AM - 12:00 AM

Action Rating: 3 out of 5

Monday, February 23, 2026

Weather Forecast

Light snow showers
18.2°F
16°F
17.8°F
82%
0.05 in
69%
70%
21 mph
0


Air Quality

AQI: 1 - Good
PM2.5: 0.95 μg/m3
PM10: 1.05 μg/m3
Carbon Monoxide: 150.47 μg/m3
Nitrogen Dioxide: 0.75 μg/m3
Sulphur Dioxide: 0.89 μg/m3
Ozone: 81.15 μg/m3

Astronomical

Sunrise: 7:38 AM
Sun Transit: 1:00 PM
Sunset: 6:23 PM
Daylight: 10 hrs 45 mins
Moonrise: 9:57 AM
Moon Transit: 6:08 PM
Moonset: 1:14 AM
Moon Phase: First Quarter
Moon Illumination: 39.8%

Best Times for Fishing or Hunting

Major Periods

5:38 AM - 8:08 AM
5:38 PM - 8:08 PM

Minor Periods

9:27 AM - 10:57 AM
12:44 AM - 2:14 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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