Water Temperature of the St. Marys River in Sault Ste. Marie, MI

Current Water Temperature

54.5°F

Measurement Time: Wednesday, October 29, 2025, 3:36 AM EDT

Temperature Locations

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Local Points of Interest

Ashmun Bay; Whitefish Island; St. Mary's Island; Soo Locks; Sault Sainte Marie

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St. Marys River

Station Name: S.W. Pier, St. Marys River
Data Source: NOAA Tides and Currents

Elevation Above Sea Level: 597 feet / 182 meters

Sensor Depth: -3.8 feet / -1.2 meters

Nearest Address:
Point West Dr
Sault Ste. Marie, MI 49783
Chippewa County

GPS Coordinates: 46.501111, -84.372611

Nearby Water Temperatures

St. Marys River, Sault Ste. Marie, MI (3.5 mi)
St. Marys River, Barbeau, MI (16.8 mi)
St. Marys River, Barbeau, MI (18.5 mi)
Lake Huron, De Tour Village, MI (41.8 mi)
Straits of Mackinac, Mackinaw City, MI (50.5 mi)
Lake Huron, Bois Blanc Island, MI (51.6 mi)
Seul Choix Bay, Port Inland, MI (80.5 mi)
Little Traverse Bay, Petoskey, MI (83.1 mi)
Miners River, Munising, MI (103.1 mi)
Lake Huron, Alpena, MI (108.3 mi)
Thunder Bay River, Alpena, MI (109.3 mi)
Lake Huron, Alpena, MI (117.3 mi)
North Branch Au Sable River, Grayling, MI (123.3 mi)
Au Sable River, Luzerne, MI (126.1 mi)
Lake Michigan, Leland, MI (126.3 mi)

Weather for Sault Ste. Marie, Michigan

Current Weather

37.9°F
Clear
Conditions: Clear
Humidity: 85%
Feels Like: 34.1°F
Wind: ENE 4.9 mph
Wind Gusts: 10.3 mph
Pressure: 30.3 in
Precipitation: 0 in
Cloud Cover: 0%
Visibility: 9 mi
UV Index: 0

Five Day Weather Forecast

Sunny
Wed
H: 57°F
L: 36°F
Mist
Thu
H: 42°F
L: 31°F
Overcast
Fri
H: 43°F
L: 36°F
Partly Cloudy
Sat
H: 42°F
L: 33°F
Overcast
Sun
H: 44°F
L: 32°F

Air Quality

AQI: 1 - Good
PM2.5: 1.45 μg/m3
PM10: 1.45 μg/m3
Carbon Monoxide: 150.85 μg/m3
Nitrogen Dioxide: 3.85 μg/m3
Sulphur Dioxide: 1.95 μg/m3
Ozone: 59 μg/m3

Astronomical

Sunrise: 8:15 AM
Sun Transit: 1:21 PM
Sunset: 6:27 PM
Daylight: 10 hrs 11 mins
Moonrise: 3:28 PM
Moon Transit: 7:58 PM
Moonset: 12:25 AM
Moon Phase: First Quarter
Moon Illumination: 52.5%

Best Times for Fishing or Hunting

Major Periods

7:50 AM - 10:20 AM
7:28 PM - 9:58 PM

Minor Periods

2:58 PM - 4:28 PM
12:00 AM - 12:00 AM

Action Rating: 3 out of 5

Wednesday, October 29, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 44.5°F
Average Humidity: 67%
Chance of Rain: 0%
Wind: 5.6 mph
UV Index: 0.4

Air Quality

AQI: 1 - Good
PM2.5: 1.83 μg/m3
PM10: 1.84 μg/m3
Carbon Monoxide: 163.05 μg/m3
Nitrogen Dioxide: 3.76 μg/m3
Sulphur Dioxide: 1.86 μg/m3
Ozone: 65.12 μg/m3

Astronomical

Sunrise: 8:15 AM
Sun Transit: 1:21 PM
Sunset: 6:27 PM
Daylight: 10 hrs 11 mins
Moonrise: 3:28 PM
Moon Transit: 7:58 PM
Moonset: 12:25 AM
Moon Phase: First Quarter
Moon Illumination: 52.5%

Best Times for Fishing or Hunting

Major Periods

7:50 AM - 10:20 AM
7:28 PM - 9:58 PM

Minor Periods

2:58 PM - 4:28 PM
12:00 AM - 12:00 AM

Action Rating: 3 out of 5

Thursday, October 30, 2025

Weather Forecast

Conditions: Mist
Average Temperature: 36.9°F
Average Humidity: 93%
Chance of Rain: 0%
Wind: 6.7 mph
UV Index: 0.4

Air Quality

AQI: 1 - Good
PM2.5: 1.91 μg/m3
PM10: 1.92 μg/m3
Carbon Monoxide: 167.69 μg/m3
Nitrogen Dioxide: 5.25 μg/m3
Sulphur Dioxide: 2.13 μg/m3
Ozone: 61.72 μg/m3

Astronomical

Sunrise: 8:17 AM
Sun Transit: 1:21 PM
Sunset: 6:25 PM
Daylight: 10 hrs 8 mins
Moonrise: 3:51 PM
Moon Transit: 8:46 PM
Moonset: 12:39 AM
Moon Phase: First Quarter
Moon Illumination: 63.7%

Best Times for Fishing or Hunting

Major Periods

8:39 AM - 11:09 AM
8:16 PM - 10:46 PM

Minor Periods

3:21 PM - 4:51 PM
12:09 AM - 1:39 AM

Action Rating: 3 out of 5

Friday, October 31, 2025

Weather Forecast

Conditions: Overcast
Average Temperature: 38.8°F
Average Humidity: 75%
Chance of Rain: 0%
Wind: 9.4 mph
UV Index: 0.3

Air Quality

AQI: 1 - Good
PM2.5: 1.71 μg/m3
PM10: 1.74 μg/m3
Carbon Monoxide: 151.33 μg/m3
Nitrogen Dioxide: 3.19 μg/m3
Sulphur Dioxide: 1.55 μg/m3
Ozone: 69.8 μg/m3

Astronomical

Sunrise: 8:18 AM
Sun Transit: 1:21 PM
Sunset: 6:24 PM
Daylight: 10 hrs 5 mins
Moonrise: 4:11 PM
Moon Transit: 9:33 PM
Moonset: 1:53 AM
Moon Phase: First Quarter
Moon Illumination: 74.1%

Best Times for Fishing or Hunting

Major Periods

9:26 AM - 11:56 AM
9:03 PM - 11:33 PM

Minor Periods

3:41 PM - 5:11 PM
1:23 AM - 2:53 AM

Action Rating: 2 out of 5

Saturday, November 1, 2025

Weather Forecast

Conditions: Partly Cloudy
Average Temperature: 36.5°F
Average Humidity: 70%
Chance of Rain: 0%
Wind: 9.2 mph
UV Index: 0.3

Air Quality

AQI: 1 - Good
PM2.5: 1.39 μg/m3
PM10: 1.42 μg/m3
Carbon Monoxide: 156.69 μg/m3
Nitrogen Dioxide: 2.01 μg/m3
Sulphur Dioxide: 1.19 μg/m3
Ozone: 67.36 μg/m3

Astronomical

Sunrise: 8:20 AM
Sun Transit: 1:21 PM
Sunset: 6:22 PM
Daylight: 10 hrs 2 mins
Moonrise: 4:29 PM
Moon Transit: 12:00 AM
Moonset: 3:10 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 83.4%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
10:14 AM - 12:44 AM

Minor Periods

3:59 PM - 5:29 PM
2:40 AM - 4:10 AM

Action Rating: 2 out of 5

Sunday, November 2, 2025

Weather Forecast

Conditions: Overcast
Average Temperature: 36.1°F
Average Humidity: 71%
Chance of Rain: 0%
Wind: 6 mph
UV Index: 0

Air Quality

AQI: 1 - Good
PM2.5: 1.66 μg/m3
PM10: 1.69 μg/m3
Carbon Monoxide: 161.47 μg/m3
Nitrogen Dioxide: 3.63 μg/m3
Sulphur Dioxide: 1.38 μg/m3
Ozone: 62.92 μg/m3

Astronomical

Sunrise: 8:21 AM
Sun Transit: 1:21 PM
Sunset: 6:21 PM
Daylight: 9 hrs 59 mins
Moonrise: 4:47 PM
Moon Transit: 12:31 AM
Moonset: 4:28 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 90.9%

Best Times for Fishing or Hunting

Major Periods

12:01 AM - 2:31 PM
12:01 AM - 2:31 PM

Minor Periods

4:17 PM - 5:47 PM
3:58 AM - 5:28 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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