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

Current Water Temperature

64.8°F

Measurement Time: Thursday, July 9, 2026, 5:54 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

St. Marys River

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

Elevation Above Sea Level: 597 feet

Sensor Depth: -4 feet

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

63.1°F
Overcast
Overcast
63.1°F
57.6°F
100%
ENE 2.2 mph
2.7 mph
57.6°F
56.2°F
0 in
100%
11 mi
1012 mbar
0

Five Day Weather Forecast

Sunny
Thu
H: 81°F
L: 52°F
Sunny
Fri
H: 80°F
L: 51°F
Partly Cloudy
Sat
H: 75°F
L: 60°F
Sunny
Sun
H: 82°F
L: 59°F
Sunny
Mon
H: 88°F
L: 61°F

Air Quality

AQI: 1 - Good
PM2.5: 6.5 μg/m3
PM10: 7.5 μg/m3
Carbon Monoxide: 138 μg/m3
Nitrogen Dioxide: 4.3 μg/m3
Sulphur Dioxide: 1.5 μg/m3
Ozone: 77 μg/m3

Astronomical

Sunrise: 5:54 AM
Sun Transit: 1:42 PM
Sunset: 9:31 PM
Daylight: 15 hrs 36 mins
Moonrise: 1:16 AM
Moon Transit: 8:49 AM
Moonset: 4:41 PM
Moon Phase: Last Quarter
Moon Illumination: 17.4%

Best Times for Fishing or Hunting

Major Periods

8:19 AM - 10:49 AM
12:00 AM - 12:00 AM

Minor Periods

4:11 PM - 5:41 PM
12:46 AM - 2:16 AM

Action Rating: 3 out of 5

Thursday, July 9, 2026

Weather Forecast

Sunny
80.6°F
51.9°F
64.6°F
79%
0 in
10%
0%
10.5 mph
7.4


Air Quality

AQI: 1 - Good
PM2.5: 5.68 μg/m3
PM10: 6.36 μg/m3
Carbon Monoxide: 135.38 μg/m3
Nitrogen Dioxide: 2.93 μg/m3
Sulphur Dioxide: 1.08 μg/m3
Ozone: 73.96 μg/m3

Astronomical

Sunrise: 5:54 AM
Sun Transit: 1:42 PM
Sunset: 9:31 PM
Daylight: 15 hrs 36 mins
Moonrise: 1:16 AM
Moon Transit: 8:49 AM
Moonset: 4:41 PM
Moon Phase: Last Quarter
Moon Illumination: 17.4%

Best Times for Fishing or Hunting

Major Periods

8:19 AM - 10:49 AM
12:00 AM - 12:00 AM

Minor Periods

4:11 PM - 5:41 PM
12:46 AM - 2:16 AM

Action Rating: 3 out of 5

Friday, July 10, 2026

Weather Forecast

Sunny
79.8°F
51.3°F
66.4°F
68%
0 in
7%
0%
6.3 mph
7.6


Air Quality

AQI: 1 - Good
PM2.5: 4.79 μg/m3
PM10: 4.93 μg/m3
Carbon Monoxide: 141.92 μg/m3
Nitrogen Dioxide: 2.45 μg/m3
Sulphur Dioxide: 0.7 μg/m3
Ozone: 66.13 μg/m3

Astronomical

Sunrise: 5:55 AM
Sun Transit: 1:42 PM
Sunset: 9:30 PM
Daylight: 15 hrs 35 mins
Moonrise: 1:45 AM
Moon Transit: 9:46 AM
Moonset: 6:04 PM
Moon Phase: Waning Crescent
Moon Illumination: 9.7%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
9:16 AM - 11:46 AM

Minor Periods

5:34 PM - 7:04 PM
1:15 AM - 2:45 AM

Action Rating: 2 out of 5

Saturday, July 11, 2026

Weather Forecast

Partly Cloudy
74.9°F
59.5°F
66.5°F
70%
0 in
17%
0%
6.9 mph
5.3


Air Quality

AQI: 1 - Good
PM2.5: 7.15 μg/m3
PM10: 7.44 μg/m3
Carbon Monoxide: 141.96 μg/m3
Nitrogen Dioxide: 3.16 μg/m3
Sulphur Dioxide: 1.1 μg/m3
Ozone: 74.88 μg/m3

Astronomical

Sunrise: 5:56 AM
Sun Transit: 1:43 PM
Sunset: 9:29 PM
Daylight: 15 hrs 33 mins
Moonrise: 2:24 AM
Moon Transit: 10:49 AM
Moonset: 7:24 PM
Moon Phase: Waning Crescent
Moon Illumination: 4.1%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
10:19 AM - 12:49 AM

Minor Periods

6:54 PM - 8:24 PM
1:54 AM - 3:24 AM

Action Rating: 2 out of 5

Sunday, July 12, 2026

Weather Forecast

Sunny
82.4°F
59°F
70.3°F
70%
0.03 in
36%
0%
8.3 mph
7.7


Air Quality

AQI: 1 - Good
PM2.5: 5.32 μg/m3
PM10: 5.56 μg/m3
Carbon Monoxide: 136.3 μg/m3
Nitrogen Dioxide: 2.09 μg/m3
Sulphur Dioxide: 0.59 μg/m3
Ozone: 79.54 μg/m3

Astronomical

Sunrise: 5:57 AM
Sun Transit: 1:43 PM
Sunset: 9:29 PM
Daylight: 15 hrs 32 mins
Moonrise: 3:18 AM
Moon Transit: 11:55 AM
Moonset: 8:34 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.8%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
11:25 AM - 1:55 PM

Minor Periods

8:04 PM - 9:34 PM
2:48 AM - 4:18 AM

Action Rating: 3 out of 5

Monday, July 13, 2026

Weather Forecast

Sunny
87.5°F
60.7°F
74.6°F
72%
0.03 in
36%
0%
13 mph
8


Air Quality

AQI: 1 - Good
PM2.5: 4.73 μg/m3
PM10: 4.93 μg/m3
Carbon Monoxide: 182.67 μg/m3
Nitrogen Dioxide: 3.53 μg/m3
Sulphur Dioxide: 0.92 μg/m3
Ozone: 61 μg/m3

Astronomical

Sunrise: 5:58 AM
Sun Transit: 1:43 PM
Sunset: 9:28 PM
Daylight: 15 hrs 30 mins
Moonrise: 4:28 AM
Moon Transit: 1:02 PM
Moonset: 9:26 PM
Moon Phase: New
Moon Illumination: 0.1%

Best Times for Fishing or Hunting

Major Periods

12:46 AM - 3:16 AM
12:32 AM - 3:02 PM

Minor Periods

8:56 PM - 10:26 PM
3:58 AM - 5:28 AM

Action Rating: 4 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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