Water Temperature of Lake Superior in Terrace Bay Township, Ontario

Current Water Temperature

12.4°C

Measurement Time: Tuesday, September 16, 2025, 3:00 AM EDT

Temperature Locations

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Local Points of Interest

Patterson Island; Pukaskwa National Park

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Lake Superior

Station Name: Slate Island
Station Type: Buoy
Data Source: National Data Buoy Center

Elevation Above Sea Level: 587 feet / 179 meters

Nearest Address:
Terrace Bay Township, ON P0T 2W0
Thunder Bay District County

GPS Coordinates: 48.54, -86.95

Nearby Water Temperatures

Lake Superior, Isle Royale, MI (50.1 mi)
Lake Superior, Copper Harbor, MI (68.1 mi)
Washington Creek, Windigo, MI (109.7 mi)
Lake Superior, Calumet, MI (116.6 mi)
Pilgrim River, Houghton, MI (125.0 mi)
Keweenaw Bay, Jacobsville, MI (127.7 mi)
East Branch Salmon Trout River, Powell, MI (128.3 mi)
Salmon Trout River, Champion, MI (128.9 mi)
Grand Portage River, Grand Portage, MN (131.9 mi)
Lake Superior, Marquette, MI (139.2 mi)
Falls River, L'Anse, MI (142.8 mi)
Miners River, Munising, MI (143.1 mi)
Middle Branch Escanaba River, , MI (147.6 mi)
Middle Branch Escanaba River, Humboldt, MI (147.7 mi)
Sturgeon River, Pelkie, MI (148.5 mi)

Weather for Terrace Bay Township, Ontario

Current Weather

16.5°C
Fog
Conditions: Fog
Humidity: 78%
Feels Like: 16.5°C
Wind: ESE 6.3 mph
Wind Gusts: 13 mph
Pressure: 30.16 in
Precipitation: 0 in
Cloud Cover: 0%
Visibility: 1 mi
UV Index: 0

Five Day Weather Forecast

Fog
Tue
H: 15°C
L: 13°C
Heavy rain
Wed
H: 18°C
L: 13°C
Partly Cloudy
Thu
H: 13°C
L: 10°C
Sunny
Fri
H: 16°C
L: 8°C
Partly Cloudy
Sat
H: 14°C
L: 10°C

Air Quality

PM2.5: 6.86 μg/m3
PM10: 7.03 μg/m3
Carbon Monoxide: 312.87 μg/m3
Nitrogen Dioxide: 1.58 μg/m3
Sulphur Dioxide: 0.88 μg/m3
Ozone: 90 μg/m3

Astronomical

Sunrise: 7:26 AM
Sun Transit: 1:42 PM
Sunset: 7:58 PM
Daylight: 12 hrs 31 mins
Moonrise: 12:59 AM
Moon Transit: 9:39 AM
Moonset: 6:06 PM
Moon Phase: Last Quarter
Moon Illumination: 23.8%

Best Times for Fishing or Hunting

Major Periods

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

Minor Periods

5:36 PM - 7:06 PM
12:29 AM - 1:59 AM

Action Rating: 2 out of 5

Tuesday, September 16, 2025

Weather Forecast

Conditions: Fog
Average Temperature: 13.8°C
Average Humidity: 96%
Chance of Rain: 0%
Wind: 9.4 mph
UV Index: 1.1

Air Quality

AQI: 1 - Good
PM2.5: 7.61 μg/m3
PM10: 7.88 μg/m3
Carbon Monoxide: 317.44 μg/m3
Nitrogen Dioxide: 1.08 μg/m3
Sulphur Dioxide: 0.98 μg/m3
Ozone: 89.84 μg/m3

Astronomical

Sunrise: 7:26 AM
Sun Transit: 1:42 PM
Sunset: 7:58 PM
Daylight: 12 hrs 31 mins
Moonrise: 12:59 AM
Moon Transit: 9:39 AM
Moonset: 6:06 PM
Moon Phase: Last Quarter
Moon Illumination: 23.8%

Best Times for Fishing or Hunting

Major Periods

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

Minor Periods

5:36 PM - 7:06 PM
12:29 AM - 1:59 AM

Action Rating: 2 out of 5

Wednesday, September 17, 2025

Weather Forecast

Conditions: Heavy rain
Average Temperature: 15°C
Average Humidity: 93%
Chance of Rain: 89%
Wind: 9.6 mph
UV Index: 1.1

Air Quality

AQI: 1 - Good
PM2.5: 9.14 μg/m3
PM10: 9.48 μg/m3
Carbon Monoxide: 330.59 μg/m3
Nitrogen Dioxide: 1.13 μg/m3
Sulphur Dioxide: 0.75 μg/m3
Ozone: 90.28 μg/m3

Astronomical

Sunrise: 7:28 AM
Sun Transit: 1:42 PM
Sunset: 7:55 PM
Daylight: 12 hrs 28 mins
Moonrise: 2:18 AM
Moon Transit: 10:34 AM
Moonset: 6:34 PM
Moon Phase: Waning Crescent
Moon Illumination: 14.9%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
10:04 AM - 12:34 AM

Minor Periods

6:04 PM - 7:34 PM
1:48 AM - 3:18 AM

Action Rating: 3 out of 5

Thursday, September 18, 2025

Weather Forecast

Conditions: Partly Cloudy
Average Temperature: 12.6°C
Average Humidity: 74%
Chance of Rain: 0%
Wind: 8.5 mph
UV Index: 1.1

Air Quality

AQI: 1 - Good
PM2.5: 1.43 μg/m3
PM10: 1.5 μg/m3
Carbon Monoxide: 277.86 μg/m3
Nitrogen Dioxide: 0.76 μg/m3
Sulphur Dioxide: 0.34 μg/m3
Ozone: 57.76 μg/m3

Astronomical

Sunrise: 7:29 AM
Sun Transit: 1:41 PM
Sunset: 7:53 PM
Daylight: 12 hrs 24 mins
Moonrise: 3:36 AM
Moon Transit: 11:24 AM
Moonset: 6:54 PM
Moon Phase: Waning Crescent
Moon Illumination: 7.8%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
10:54 AM - 1:24 PM

Minor Periods

6:24 PM - 7:54 PM
3:06 AM - 4:36 AM

Action Rating: 3 out of 5

Friday, September 19, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 12.2°C
Average Humidity: 68%
Chance of Rain: 0%
Wind: 11 mph
UV Index: 1.1

Air Quality

AQI: 1 - Good
PM2.5: 2.35 μg/m3
PM10: 2.49 μg/m3
Carbon Monoxide: 259.6 μg/m3
Nitrogen Dioxide: 1.03 μg/m3
Sulphur Dioxide: 0.42 μg/m3
Ozone: 53.54 μg/m3

Astronomical

Sunrise: 7:30 AM
Sun Transit: 1:41 PM
Sunset: 7:51 PM
Daylight: 12 hrs 21 mins
Moonrise: 4:54 AM
Moon Transit: 12:10 AM
Moonset: 7:11 PM
Moon Phase: Waning Crescent
Moon Illumination: 2.8%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
11:40 AM - 2:10 PM

Minor Periods

6:41 PM - 8:11 PM
4:24 AM - 5:54 AM

Action Rating: 3 out of 5

Saturday, September 20, 2025

Weather Forecast

Conditions: Partly Cloudy
Average Temperature: 11.4°C
Average Humidity: 80%
Chance of Rain: 0%
Wind: 14.8 mph
UV Index: 0

Air Quality

AQI: 0 -
PM2.5: 0 μg/m3
PM10: 0 μg/m3
Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 7:32 AM
Sun Transit: 1:41 PM
Sunset: 7:49 PM
Daylight: 12 hrs 17 mins
Moonrise: 6:07 AM
Moon Transit: 12:53 AM
Moonset: 7:25 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.3%

Best Times for Fishing or Hunting

Major Periods

12:27 AM - 2:57 AM
12:23 AM - 2:53 PM

Minor Periods

6:55 PM - 8:25 PM
5:37 AM - 7:07 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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