Water Temperature of Lake Superior in Terrace Bay Township, Ontario

Current Water Temperature

7.3°C 45.1°F
Frigid Dangerously Cold
7.3°C
Frigid < 10°C
Cold 10°–15°
Cool 16°–21°
Comfortable 21°–27°
Warm 27°+

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

Measurement Time: Thursday, November 12, 2026, 3:00 AM EST

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: 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 (80.6 km)
Lake Superior, Copper Harbor, MI (109.6 km)
Washington Creek, Windigo, MI (176.6 km)
Lake Superior, Calumet, MI (187.6 km)
Pilgrim River, Houghton, MI (201.2 km)
Keweenaw Bay, Jacobsville, MI (205.5 km)
East Branch Salmon Trout River, Powell, MI (206.4 km)
Salmon Trout River, Champion, MI (207.4 km)
Grand Portage River, Grand Portage, MN (212.3 km)
Lake Superior, Marquette, MI (224.1 km)
Falls River, L'Anse, MI (229.8 km)
Miners River, Munising, MI (230.3 km)
Middle Branch Escanaba River, Humboldt, MI (237.8 km)
Sturgeon River, Pelkie, MI (239.1 km)
Lake Superior, Lake Superior, MI (250.6 km)

Weather for Terrace Bay Township, Ontario

Current Weather

0.4°C
Overcast
Conditions: Overcast
Humidity: 67%
Feels Like: -7.8°C
Wind: NNE 23 mph
Wind Gusts: 24.9 mph
Pressure: 30.12 in
Precipitation: 0 in
Cloud Cover: 100%
Visibility: 16.4 mi
UV Index: 0

Five-Day Weather Forecast

Overcast
Thu
H: 1°C
L: -1°C
Overcast
Fri
H: 1°C
L: -1°C
Overcast
Sat
H: 4°C
L: 0°C
Overcast
Sun
H: 5°C
L: 2°C
Overcast
Mon
H: 7°C
L: 5°C

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
0.1 μg/m³
Good
Ozone (O3)
74 μg/m³
Photochemical
NO2
0.1 μg/m³
Nitrogen Dioxide
SO2
0.1 μg/m³
Sulfur Dioxide
CO
107 μg/m³
Carbon Monoxide

Astronomical

Sun
9h 20m daylight
Sunrise 7:51 AM
Solar Noon 12:31 PM
Sunset 5:12 PM
Moon
Waxing Crescent • 6%
Moonrise 11:38 AM
Transit 3:19 PM
Moonset 7:02 PM

Best Times for Fishing or Hunting

Major Periods

2:23 AM - 4:53 AM
2:49 PM - 5:19 PM

Minor Periods

11:08 AM - 12:38 PM
6:32 PM - 8:02 PM
Action Rating:
Good Action 3/5
Thursday, November 12, 2026

Weather Forecast

Conditions: Overcast
Average Temperature: 0.1°C
Average Humidity: 73%
Chance of Rain: 8%
Wind: 26.2 mph
UV Index: 1.7

Air Quality

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

Astronomical

Sun
9h 20m daylight
Sunrise 7:51 AM
Solar Noon 12:31 PM
Sunset 5:12 PM
Moon
Waxing Crescent • 6%
Moonrise 11:38 AM
Transit 3:19 PM
Moonset 7:02 PM

Best Times for Fishing or Hunting

Major Periods

2:23 AM - 4:53 AM
2:49 PM - 5:19 PM

Minor Periods

11:08 AM - 12:38 PM
6:32 PM - 8:02 PM
Action Rating:
Good Action 3/5
Friday, November 13, 2026

Weather Forecast

Conditions: Overcast
Average Temperature: 0°C
Average Humidity: 80%
Chance of Rain: 9%
Wind: 26.1 mph
UV Index: 1.9

Air Quality

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

Astronomical

Sun
9h 18m daylight
Sunrise 7:53 AM
Solar Noon 12:32 PM
Sunset 5:11 PM
Moon
Waxing Crescent • 13%
Moonrise 12:22 PM
Transit 4:10 PM
Moonset 8:03 PM

Best Times for Fishing or Hunting

Major Periods

3:15 AM - 5:45 AM
3:40 PM - 6:10 PM

Minor Periods

11:52 AM - 1:22 PM
7:33 PM - 9:03 PM
Action Rating:
Fair Action 2/5
Saturday, November 14, 2026

Weather Forecast

Conditions: Overcast
Average Temperature: 1.9°C
Average Humidity: 76%
Chance of Rain: 2%
Wind: 17.4 mph
UV Index: 2

Air Quality

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

Astronomical

Sun
9h 15m daylight
Sunrise 7:54 AM
Solar Noon 12:32 PM
Sunset 5:09 PM
Moon
Waxing Crescent • 21%
Moonrise 12:55 PM
Transit 4:58 PM
Moonset 9:09 PM

Best Times for Fishing or Hunting

Major Periods

4:04 AM - 6:34 AM
4:28 PM - 6:58 PM

Minor Periods

12:25 PM - 1:55 PM
8:39 PM - 10:09 PM
Action Rating:
Fair Action 2/5
Sunday, November 15, 2026

Weather Forecast

Conditions: Overcast
Average Temperature: 3.4°C
Average Humidity: 75%
Chance of Rain: 0%
Wind: 15 mph
UV Index: 1.3

Air Quality

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

Astronomical

Sun
9h 12m daylight
Sunrise 7:56 AM
Solar Noon 12:32 PM
Sunset 5:08 PM
Moon
Waxing Crescent • 31%
Moonrise 1:20 PM
Transit 5:45 PM
Moonset 10:19 PM

Best Times for Fishing or Hunting

Major Periods

4:52 AM - 7:22 AM
5:15 PM - 7:45 PM

Minor Periods

12:50 PM - 2:20 PM
9:49 PM - 11:19 PM
Action Rating:
Good Action 3/5
Monday, November 16, 2026

Weather Forecast

Conditions: Overcast
Average Temperature: 5.6°C
Average Humidity: 76%
Chance of Rain: 1%
Wind: 21.4 mph
UV Index: 1.7

Air Quality

EPA Index 1 • Good
PM2.5
0.9 μg/m³
Good
PM10
1 μg/m³
Good
Ozone (O3)
69.5 μg/m³
Photochemical
NO2
0.8 μg/m³
Nitrogen Dioxide
SO2
0.4 μg/m³
Sulfur Dioxide
CO
150.4 μg/m³
Carbon Monoxide

Astronomical

Sun
9h 9m daylight
Sunrise 7:58 AM
Solar Noon 12:32 PM
Sunset 5:07 PM
Moon
First Quarter • 42%
Moonrise 1:41 PM
Transit 6:29 PM
Moonset 11:28 PM

Best Times for Fishing or Hunting

Major Periods

5:37 AM - 8:07 AM
5:59 PM - 8:29 PM

Minor Periods

1:11 PM - 2:41 PM
10:58 PM - 12:28 AM
Action Rating:
Good Action 3/5
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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