Water Temperature of Lake Superior Near Copper Harbor, MI

Current Water Temperature

42.4°F

Measurement Time: Wednesday, July 16, 2025, 3:30 AM EDT

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

50.7°F
Overcast
Conditions: Overcast
Humidity: 96%
Feels Like: 45°F
Wind: NNE 17.4 mph
Wind Gusts: 30.2 mph
Pressure: 29.98 in
Precipitation: 0 in
Cloud Cover: 0%
Visibility: 6 mi
UV Index: 0.1

Five Day Weather Forecast

Moderate rain
Wed
H: 48°F
L: 46°F
Sunny
Thu
H: 52°F
L: 48°F
Sunny
Fri
H: 57°F
L: 53°F
Patchy rain nearby
Sat
H: 53°F
L: 50°F
Patchy rain nearby
Sun
H: 53°F
L: 48°F

Air Quality

AQI: 1 - Good
PM2.5: 2.69 μg/m3
PM10: 2.85 μg/m3
Carbon Monoxide: 216.49 μg/m3
Nitrogen Dioxide: 0.67 μg/m3
Sulphur Dioxide: 0.17 μg/m3
Ozone: 52 μg/m3

Astronomical

Sunrise: 6:06 AM
Sun Transit: 1:52 PM
Sunset: 9:39 PM
Daylight: 15 hrs 33 mins
Moonrise: 12:05 AM
Moon Transit: 1:15 AM
Moonset: 12:49 AM
Moon Phase: Waning Gibbous
Moon Illumination: 55.7%

Best Times for Fishing or Hunting

Major Periods

12:45 AM - 3:15 AM
12:45 AM - 3:15 AM

Minor Periods

12:19 AM - 1:49 PM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

veille de grains en vigueur en vigueur

Service Notice – June 2025: The Environment and Climate Change Canada (ECCC) CAP Service undergoes changes from time to time as the business of alerting evolves. For 2025, changes are expected to include... 1) ECCC's initiative to upgrade the presentation of alerts into Colour-Coded Weather Alerts is planned for deployment for later in 2025. Data changes will appear in CAP-CP upon this deployment, 2) SAME event codes for a few alert types are updated and 3) other minor improvements and corrections. For more information on these changes: https://comm.collab.science.gc.ca/mailman3/hyperkitty/list/dd_info@comm.collab.science.gc.ca/ | Notification de service – juin 2025: Le service du PAC d’Environnement et Changement climatique Canada (ECCC) subit périodiquement des changements à mesure que le système d’alerte évolue. Pour 2025, il y aura des changements incluant... 1) l'initiative d'ECCC visant à améliorer la présentation des alertes sous forme d'alertes météorologiques codées par couleur est prévue d’être déployée plus tard en 2025. Des changements aux données apparaîtront dans le PC-PAC lors de ce déploiement, 2) des codes d’événement MSSC pour quelques types d’alerte ont été mis à jour et 3) d’autres améliorations et corrections mineures. Pour plus d’informations sur ces changements: https://comm.collab.science.gc.ca/mailman3/hyperkitty/list/dd_info@comm.collab.science.gc.ca/

Effective: Tue July 15, 2025, 9:40 PM
Expires: Wed July 16, 2025, 10:08 AM

Conditions are favourable for the development of squalls with wind gusts up to 40 knots, frequent lightning and poor to very poor visibility in thunderstorms heavy at times. Thunderstorms will move eastward across the lake tonight and reach the shore in locations from near Michipicoten to near Montreal River Harbour. ### Poor to very poor visibility may contribute to voyage delays and make marine navigation hazardous. Please continue to monitor alerts and forecasts issued by Environment Canada. For more information monitor Canadian Coast Guard radio or Weatheradio stations.

Mariners are advised to prepare for potential squalls. Vulnerable vessels are most at risk and should seek safe harbour if underway.


Wednesday, July 16, 2025

Weather Forecast

Conditions: Moderate rain
Average Temperature: 46.8°F
Average Humidity: 92%
Chance of Rain: 71%
Wind: 18.3 mph
UV Index: 0.6

Air Quality

AQI: 1 - Good
PM2.5: 2.62 μg/m3
PM10: 2.67 μg/m3
Carbon Monoxide: 284.29 μg/m3
Nitrogen Dioxide: 0.89 μg/m3
Sulphur Dioxide: 0.15 μg/m3
Ozone: 55.36 μg/m3

Astronomical

Sunrise: 6:06 AM
Sun Transit: 1:52 PM
Sunset: 9:39 PM
Daylight: 15 hrs 33 mins
Moonrise: 12:05 AM
Moon Transit: 1:15 AM
Moonset: 12:49 AM
Moon Phase: Waning Gibbous
Moon Illumination: 55.7%

Best Times for Fishing or Hunting

Major Periods

12:45 AM - 3:15 AM
12:45 AM - 3:15 AM

Minor Periods

12:19 AM - 1:49 PM
12:00 AM - 12:00 AM

Action Rating: 2 out of 5

Thursday, July 17, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 50.2°F
Average Humidity: 82%
Chance of Rain: 0%
Wind: 13 mph
UV Index: 2.2

Air Quality

AQI: 1 - Good
PM2.5: 3.81 μg/m3
PM10: 3.91 μg/m3
Carbon Monoxide: 214.61 μg/m3
Nitrogen Dioxide: 0.87 μg/m3
Sulphur Dioxide: 0.37 μg/m3
Ozone: 54.24 μg/m3

Astronomical

Sunrise: 6:07 AM
Sun Transit: 1:52 PM
Sunset: 9:38 PM
Daylight: 15 hrs 31 mins
Moonrise: 12:21 AM
Moon Transit: 7:05 AM
Moonset: 2:08 PM
Moon Phase: Last Quarter
Moon Illumination: 44.4%

Best Times for Fishing or Hunting

Major Periods

6:35 AM - 9:05 AM
7:28 PM - 9:58 PM

Minor Periods

1:38 PM - 3:08 PM
12:00 AM - 12:00 AM

Action Rating: 4 out of 5

Friday, July 18, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 54.8°F
Average Humidity: 75%
Chance of Rain: 0%
Wind: 11 mph
UV Index: 1.7

Air Quality

AQI: 1 - Good
PM2.5: 5.15 μg/m3
PM10: 5.29 μg/m3
Carbon Monoxide: 229.71 μg/m3
Nitrogen Dioxide: 1.3 μg/m3
Sulphur Dioxide: 0.23 μg/m3
Ozone: 67.12 μg/m3

Astronomical

Sunrise: 6:08 AM
Sun Transit: 1:52 PM
Sunset: 9:37 PM
Daylight: 15 hrs 29 mins
Moonrise: 12:40 AM
Moon Transit: 7:55 AM
Moonset: 3:30 PM
Moon Phase: Last Quarter
Moon Illumination: 33.4%

Best Times for Fishing or Hunting

Major Periods

7:25 AM - 9:55 AM
8:20 PM - 10:50 PM

Minor Periods

3:00 PM - 4:30 PM
12:10 AM - 1:40 AM

Action Rating: 2 out of 5

Saturday, July 19, 2025

Weather Forecast

Conditions: Patchy rain nearby
Average Temperature: 53.1°F
Average Humidity: 95%
Chance of Rain: 89%
Wind: 8.5 mph
UV Index: 1.8

Air Quality

AQI: 1 - Good
PM2.5: 7.68 μg/m3
PM10: 8.01 μg/m3
Carbon Monoxide: 226.29 μg/m3
Nitrogen Dioxide: 2.91 μg/m3
Sulphur Dioxide: 0.37 μg/m3
Ozone: 78.36 μg/m3

Astronomical

Sunrise: 6:09 AM
Sun Transit: 1:52 PM
Sunset: 9:36 PM
Daylight: 15 hrs 27 mins
Moonrise: 1:02 AM
Moon Transit: 8:49 AM
Moonset: 4:55 PM
Moon Phase: Last Quarter
Moon Illumination: 23.2%

Best Times for Fishing or Hunting

Major Periods

8:19 AM - 10:49 AM
9:16 PM - 11:46 PM

Minor Periods

4:25 PM - 5:55 PM
12:32 AM - 2:02 AM

Action Rating: 3 out of 5

Sunday, July 20, 2025

Weather Forecast

Conditions: Patchy rain nearby
Average Temperature: 50.3°F
Average Humidity: 95%
Chance of Rain: 89%
Wind: 8.1 mph
UV Index: 0.1

Air Quality

AQI: 1 - Good
PM2.5: 4.97 μg/m3
PM10: 5.25 μg/m3
Carbon Monoxide: 284.78 μg/m3
Nitrogen Dioxide: 2.58 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 89.54 μg/m3

Astronomical

Sunrise: 6:10 AM
Sun Transit: 1:52 PM
Sunset: 9:35 PM
Daylight: 15 hrs 25 mins
Moonrise: 1:31 AM
Moon Transit: 9:47 AM
Moonset: 6:19 PM
Moon Phase: Waning Crescent
Moon Illumination: 14.4%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
9:17 AM - 11:47 AM

Minor Periods

5:49 PM - 7:19 PM
1:01 AM - 2:31 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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