Water Temperature of Lake Superior Near Copper Harbor, MI

Current Water Temperature

40.1°F 4.5°C
Frigid Dangerously Cold
40.1°F
Frigid < 50°F
Cold 50°–60°
Cool 60°–70°
Comfortable 70°–80°
Warm 80°+

Severe hypothermia and cold water shock risk. Unprotected swimming causes rapid loss of dexterity in under 5 minutes.

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

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)
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)
Washington Creek, Windigo, MI (121.2 mi)

Marine Weather for Lake Superior Near Copper Harbor, MI

Marine Weather

Coastal & Marine Conditions
Open-Meteo Marine
3.1ft 1.0 m
Moderate Chop Noticeable waves and spray. Small craft exercise standard caution.
Wave Period 4s
Wave Direction 2° N
Swell Waves
0.7 ft
4.5s • 32° NNE
Wind Waves / Chop
3.0 ft
3.6s • 1° N
High and low tide forecasts are not applicable for freshwater lake stations.

5-Day Marine Wave Forecast

Today
Nov 14
3.7 ft
4.5s • N
Sun
Nov 15
1.2 ft
3s • NW
Mon
Nov 16
3.4 ft
4.3s • WSW
Tue
Nov 17
3.5 ft
4.4s • WSW
Wed
Nov 18
4.0 ft
4.5s • SW

Weather Near Copper Harbor, Michigan

Current Weather

32.7°F
Overcast
Conditions: Overcast
Humidity: 84%
Feels Like: 21.2°F
Wind: N 17.1 mph
Wind Gusts: 18.1 mph
Pressure: 30.19 in
Precipitation: 0 in
Cloud Cover: 100%
Visibility: 11 mi
UV Index: 0

Five-Day Weather Forecast

Overcast
Sat
H: 35°F
L: 30°F
Overcast
Sun
H: 40°F
L: 35°F
Overcast
Mon
H: 44°F
L: 41°F
Overcast
Tue
H: 45°F
L: 43°F
Overcast
Wed
H: 45°F
L: 42°F

Air Quality

EPA Index 1 • Good

Air quality is satisfactory, and air pollution poses little or no risk.

PM2.5
0.1 μg/m³
Good
PM10
0.2 μg/m³
Good
Ozone (O3)
72 μg/m³
Photochemical
NO2
0.1 μg/m³
Nitrogen Dioxide
SO2
0 μg/m³
Sulfur Dioxide
CO
112 μg/m³
Carbon Monoxide

Astronomical

Sun
9h 21m daylight
Sunrise 7:50 AM
Solar Noon 12:30 PM
Sunset 5:11 PM
Moon
Waxing Crescent • 21%
Moonrise 12:49 PM
Transit 4:57 PM
Moonset 9:12 PM

Best Times for Fishing or Hunting

Major Periods

4:03 AM - 6:33 AM
4:27 PM - 6:57 PM

Minor Periods

12:19 PM - 1:49 PM
8:42 PM - 10:12 PM
Action Rating:
Fair Action 2/5
Saturday, November 14, 2026

Weather Forecast

Conditions: Overcast
Average Temperature: 32.9°F
Average Humidity: 85%
Chance of Rain: 1%
Wind: 19.7 mph
UV Index: 1.3

Air Quality

EPA Index 1 • Good
PM2.5
0.2 μg/m³
Good
PM10
0.2 μg/m³
Good
Ozone (O3)
75.3 μg/m³
Photochemical
NO2
0.1 μg/m³
Nitrogen Dioxide
SO2
0.1 μg/m³
Sulfur Dioxide
CO
111 μg/m³
Carbon Monoxide

Astronomical

Sun
9h 21m daylight
Sunrise 7:50 AM
Solar Noon 12:30 PM
Sunset 5:11 PM
Moon
Waxing Crescent • 21%
Moonrise 12:49 PM
Transit 4:57 PM
Moonset 9:12 PM

Best Times for Fishing or Hunting

Major Periods

4:03 AM - 6:33 AM
4:27 PM - 6:57 PM

Minor Periods

12:19 PM - 1:49 PM
8:42 PM - 10:12 PM
Action Rating:
Fair Action 2/5
Sunday, November 15, 2026

Weather Forecast

Conditions: Overcast
Average Temperature: 36.3°F
Average Humidity: 79%
Chance of Rain: 1%
Wind: 13.3 mph
UV Index: 2.2

Air Quality

EPA Index 1 • Good
PM2.5
2.2 μg/m³
Good
PM10
3 μg/m³
Good
Ozone (O3)
75.6 μg/m³
Photochemical
NO2
0.4 μg/m³
Nitrogen Dioxide
SO2
0.3 μg/m³
Sulfur Dioxide
CO
112.6 μg/m³
Carbon Monoxide

Astronomical

Sun
9h 18m daylight
Sunrise 7:52 AM
Solar Noon 12:30 PM
Sunset 5:10 PM
Moon
Waxing Crescent • 31%
Moonrise 1:15 PM
Transit 5:43 PM
Moonset 10:21 PM

Best Times for Fishing or Hunting

Major Periods

4:50 AM - 7:20 AM
5:13 PM - 7:43 PM

Minor Periods

12:45 PM - 2:15 PM
9:51 PM - 11:21 PM
Action Rating:
Good Action 3/5
Monday, November 16, 2026

Weather Forecast

Conditions: Overcast
Average Temperature: 41.9°F
Average Humidity: 74%
Chance of Rain: 0%
Wind: 24.9 mph
UV Index: 2.2

Air Quality

EPA Index 1 • Good
PM2.5
3.2 μg/m³
Good
PM10
3.4 μg/m³
Good
Ozone (O3)
66.5 μg/m³
Photochemical
NO2
1.5 μg/m³
Nitrogen Dioxide
SO2
0.2 μg/m³
Sulfur Dioxide
CO
124.3 μg/m³
Carbon Monoxide

Astronomical

Sun
9h 15m daylight
Sunrise 7:53 AM
Solar Noon 12:31 PM
Sunset 5:09 PM
Moon
First Quarter • 42%
Moonrise 1:37 PM
Transit 6:28 PM
Moonset 11:29 PM

Best Times for Fishing or Hunting

Major Periods

5:36 AM - 8:06 AM
5:58 PM - 8:28 PM

Minor Periods

1:07 PM - 2:37 PM
10:59 PM - 12:29 AM
Action Rating:
Good Action 3/5
Tuesday, November 17, 2026

Weather Forecast

Conditions: Overcast
Average Temperature: 43.3°F
Average Humidity: 81%
Chance of Rain: 0%
Wind: 20.6 mph
UV Index: 2

Air Quality

EPA Index 1 • Good
PM2.5
4.3 μg/m³
Good
PM10
4.4 μg/m³
Good
Ozone (O3)
65.7 μg/m³
Photochemical
NO2
1.7 μg/m³
Nitrogen Dioxide
SO2
0.4 μg/m³
Sulfur Dioxide
CO
137.2 μg/m³
Carbon Monoxide

Astronomical

Sun
9h 13m daylight
Sunrise 7:55 AM
Solar Noon 12:31 PM
Sunset 5:08 PM
Moon
First Quarter • 54%
Moonrise 1:55 PM
Transit 7:11 PM
Moonset 2:20 AM

Best Times for Fishing or Hunting

Major Periods

6:19 AM - 8:49 AM
6:41 PM - 9:11 PM

Minor Periods

1:50 AM - 3:20 AM
1:25 PM - 2:55 PM
Action Rating:
Fair Action 2/5
Wednesday, November 18, 2026

Weather Forecast

Conditions: Overcast
Average Temperature: 43.7°F
Average Humidity: 82%
Chance of Rain: 4%
Wind: 23.8 mph
UV Index: 2

Air Quality

EPA Index 1 • Good
PM2.5
4 μg/m³
Good
PM10
4 μg/m³
Good
Ozone (O3)
63.5 μg/m³
Photochemical
NO2
2.4 μg/m³
Nitrogen Dioxide
SO2
0.7 μg/m³
Sulfur Dioxide
CO
171.4 μg/m³
Carbon Monoxide

Astronomical

Sun
9h 10m daylight
Sunrise 7:56 AM
Solar Noon 12:31 PM
Sunset 5:06 PM
Moon
First Quarter • 65%
Moonrise 2:11 PM
Transit 7:53 PM
Moonset 12:39 AM

Best Times for Fishing or Hunting

Major Periods

7:02 AM - 9:32 AM
7:23 PM - 9:53 PM

Minor Periods

12:09 AM - 1:39 AM
1:41 PM - 3:11 PM
Action Rating:
Fair Action 2/5
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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