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

71.1°F
Sunny
Sunny
71.1°F
75.9°F
51%
WSW 12.1 mph
25.4 mph
71.1°F
51.7°F
0 in
0%
6 mi
1018 mbar
0

Five Day Weather Forecast

Sunny
Wed
H: 73°F
L: 66°F
Sunny
Thu
H: 69°F
L: 55°F
Patchy rain nearby
Fri
H: 59°F
L: 55°F
Sunny
Sat
H: 58°F
L: 51°F
Sunny
Sun
H: 63°F
L: 54°F

Air Quality

AQI: 1 - Good
PM2.5: 6.1 μg/m3
PM10: 6.3 μg/m3
Carbon Monoxide: 171 μg/m3
Nitrogen Dioxide: 2.2 μg/m3
Sulphur Dioxide: 0.4 μg/m3
Ozone: 72 μg/m3

Astronomical

Sunrise: 6:04 AM
Sun Transit: 1:52 PM
Sunset: 9:40 PM
Daylight: 15 hrs 35 mins
Moonrise: 7:22 AM
Moon Transit: 3:14 PM
Moonset: 10:47 PM
Moon Phase: New
Moon Illumination: 0.2%

Best Times for Fishing or Hunting

Major Periods

2:43 AM - 5:13 AM
2:44 PM - 5:14 PM

Minor Periods

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

Action Rating: 3 out of 5

Air Quality Alert issued July 15 at 10:24AM EDT by NWS Marquette MI

Effective: Wed July 15, 2026, 10:24 AM
Expires: Thu July 16, 2026, 12:00 PM

The Michigan Department of Environment, Great Lakes, and Energy (EGLE) has issued an Air Quality Alert for July 15 and July 16 2026, for elevated levels of fine particulate due to wildfire smoke. Pollutants are expected to range from Unhealthy for Sensitive Groups in the south to Unhealthy in the north. Hourly concentrations at times may reach Very Unhealthy to Hazardous. This is a Statewide Air Quality Alert. Plumes of smoke from Canadian wildfires will continue moving into the region this week. The plumes as of Wednesday morning have reached the Upper Peninsula, and will continue sinking south, reaching the Michigan/Indiana border Wednesday evening. It is recommended that, when possible, you avoid strenuous outdoor activities, especially those with heart disease and respiratory conditions like asthma. Watch for symptoms including wheezing, coughing, chest tightness, dizziness, or burning in the nose, throat, and eyes. You can help reduce air pollution by limiting activities such as outdoor burning or use of residential wood burning devices. Tips for households: Keep windows closed overnight to prevent smoke from getting indoors and, if possible, run central air conditioning with MERV-13 or higher rated filters. For up-to-date air quality data for Michigan, visit the MiAir site: Michigan.gov/MiAir For fup-to-date air quality data nationally, visit EPA's Air Now site: https://www.airnow.gov For further health information, please see MDHHS' Wildfire Smoke and Your Health site at https://www.michigan.gov/mdhhs/safety-injury- prev/environmental-health/your-health-and-wildfire-smoke. Air Quality Alert Michigan Department of Environment, Great Lakes, and Energy July 15 2026


Wednesday, July 15, 2026

Weather Forecast

Sunny
72.9°F
66°F
69.8°F
51%
0 in
2%
0%
14.1 mph
0.3


Air Quality

AQI: 1 - Good
PM2.5: 5.71 μg/m3
PM10: 5.85 μg/m3
Carbon Monoxide: 128.21 μg/m3
Nitrogen Dioxide: 1.08 μg/m3
Sulphur Dioxide: 0.36 μg/m3
Ozone: 75.5 μg/m3

Astronomical

Sunrise: 6:04 AM
Sun Transit: 1:52 PM
Sunset: 9:40 PM
Daylight: 15 hrs 35 mins
Moonrise: 7:22 AM
Moon Transit: 3:14 PM
Moonset: 10:47 PM
Moon Phase: New
Moon Illumination: 0.2%

Best Times for Fishing or Hunting

Major Periods

2:43 AM - 5:13 AM
2:44 PM - 5:14 PM

Minor Periods

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

Action Rating: 3 out of 5

Thursday, July 16, 2026

Weather Forecast

Sunny
69.3°F
55.1°F
60.2°F
72%
0 in
10%
0%
14.8 mph
0.8


Air Quality

AQI: 1 - Good
PM2.5: 12.95 μg/m3
PM10: 13.2 μg/m3
Carbon Monoxide: 138.83 μg/m3
Nitrogen Dioxide: 1.26 μg/m3
Sulphur Dioxide: 0.58 μg/m3
Ozone: 76.54 μg/m3

Astronomical

Sunrise: 6:05 AM
Sun Transit: 1:52 PM
Sunset: 9:39 PM
Daylight: 15 hrs 33 mins
Moonrise: 8:48 AM
Moon Transit: 4:07 PM
Moonset: 11:08 PM
Moon Phase: New
Moon Illumination: 2.4%

Best Times for Fishing or Hunting

Major Periods

3:39 AM - 6:09 AM
3:37 PM - 6:07 PM

Minor Periods

12:00 AM - 12:00 AM
8:18 AM - 9:48 AM

Action Rating: 4 out of 5

Friday, July 17, 2026

Weather Forecast

Patchy rain nearby
58.7°F
55.2°F
57°F
94%
0.62 in
89%
0%
15.9 mph
2


Air Quality

AQI: 1 - Good
PM2.5: 6.61 μg/m3
PM10: 6.85 μg/m3
Carbon Monoxide: 115.42 μg/m3
Nitrogen Dioxide: 0.9 μg/m3
Sulphur Dioxide: 0.28 μg/m3
Ozone: 75.67 μg/m3

Astronomical

Sunrise: 6:07 AM
Sun Transit: 1:52 PM
Sunset: 9:38 PM
Daylight: 15 hrs 31 mins
Moonrise: 10:09 AM
Moon Transit: 4:55 PM
Moonset: 12:08 AM
Moon Phase: Waxing Crescent
Moon Illumination: 7.0%

Best Times for Fishing or Hunting

Major Periods

4:30 AM - 7:00 AM
4:25 PM - 6:55 PM

Minor Periods

9:39 AM - 11:09 AM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Saturday, July 18, 2026

Weather Forecast

Sunny
58.2°F
50.6°F
53.6°F
95%
0.17 in
83%
0%
17.2 mph
4.2


Air Quality

AQI: 1 - Good
PM2.5: 7.18 μg/m3
PM10: 7.35 μg/m3
Carbon Monoxide: 117.04 μg/m3
Nitrogen Dioxide: 0.79 μg/m3
Sulphur Dioxide: 0.22 μg/m3
Ozone: 79 μg/m3

Astronomical

Sunrise: 6:08 AM
Sun Transit: 1:52 PM
Sunset: 9:37 PM
Daylight: 15 hrs 29 mins
Moonrise: 11:25 AM
Moon Transit: 5:41 PM
Moonset: 12:26 AM
Moon Phase: Waxing Crescent
Moon Illumination: 13.9%

Best Times for Fishing or Hunting

Major Periods

5:16 AM - 7:46 AM
5:11 PM - 7:41 PM

Minor Periods

10:55 AM - 12:25 AM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Sunday, July 19, 2026

Weather Forecast

Sunny
63.3°F
54.1°F
58°F
80%
0 in
13%
0%
13.4 mph
0.2


Air Quality

AQI: 1 - Good
PM2.5: 7.27 μg/m3
PM10: 7.43 μg/m3
Carbon Monoxide: 171.33 μg/m3
Nitrogen Dioxide: 0.97 μg/m3
Sulphur Dioxide: 0.23 μg/m3
Ozone: 86.22 μg/m3

Astronomical

Sunrise: 6:09 AM
Sun Transit: 1:52 PM
Sunset: 9:36 PM
Daylight: 15 hrs 27 mins
Moonrise: 12:39 AM
Moon Transit: 6:24 PM
Moonset: 12:42 AM
Moon Phase: Waxing Crescent
Moon Illumination: 22.6%

Best Times for Fishing or Hunting

Major Periods

6:01 AM - 8:31 AM
5:54 PM - 8:24 PM

Minor Periods

12:09 AM - 1:39 PM
12:00 AM - 12:00 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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