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

Current Water Temperature

34.2°F

Measurement Time: Tuesday, April 21, 2026, 3:06 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

30.9°F
Overcast
Overcast
23.3°F
31.4°F
75%
SSE 8.3 mph
14.6 mph
26°F
25.3°F
0 in
100%
9 mi
1018 mbar
0

Five Day Weather Forecast

Sunny
Tue
H: 52°F
L: 28°F
Sunny
Wed
H: 58°F
L: 32°F
Patchy rain nearby
Thu
H: 48°F
L: 41°F
Patchy rain nearby
Fri
H: 47°F
L: 38°F
Patchy rain nearby
Sat
H: 56°F
L: 39°F

Air Quality

PM2.5: 7.85 μg/m3
PM10: 8.15 μg/m3
Carbon Monoxide: 190.85 μg/m3
Nitrogen Dioxide: 5.35 μg/m3
Sulphur Dioxide: 2.65 μg/m3
Ozone: 90 μg/m3

Astronomical

Sunrise: 6:40 AM
Sun Transit: 1:36 PM
Sunset: 8:34 PM
Daylight: 13 hrs 54 mins
Moonrise: 9:12 AM
Moon Transit: 5:50 PM
Moonset: 1:24 AM
Moon Phase: Waxing Crescent
Moon Illumination: 18.8%

Best Times for Fishing or Hunting

Major Periods

5:35 AM - 8:05 AM
5:20 PM - 7:50 PM

Minor Periods

8:42 AM - 10:12 AM
12:54 AM - 2:24 AM

Action Rating: 2 out of 5

Tuesday, April 21, 2026

Weather Forecast

Sunny
52.1°F
28.4°F
38.9°F
77%
0 in
0%
0%
10.7 mph
5.5


Air Quality

AQI: 1 - Good
PM2.5: 6.19 μg/m3
PM10: 7.68 μg/m3
Carbon Monoxide: 181.33 μg/m3
Nitrogen Dioxide: 3.3 μg/m3
Sulphur Dioxide: 1.92 μg/m3
Ozone: 91.64 μg/m3

Astronomical

Sunrise: 6:40 AM
Sun Transit: 1:36 PM
Sunset: 8:34 PM
Daylight: 13 hrs 54 mins
Moonrise: 9:12 AM
Moon Transit: 5:50 PM
Moonset: 1:24 AM
Moon Phase: Waxing Crescent
Moon Illumination: 18.8%

Best Times for Fishing or Hunting

Major Periods

5:35 AM - 8:05 AM
5:20 PM - 7:50 PM

Minor Periods

8:42 AM - 10:12 AM
12:54 AM - 2:24 AM

Action Rating: 2 out of 5

Wednesday, April 22, 2026

Weather Forecast

Sunny
57.5°F
31.7°F
44°F
75%
0 in
0%
0%
4.7 mph
6.1


Air Quality

AQI: 1 - Good
PM2.5: 3.77 μg/m3
PM10: 4.55 μg/m3
Carbon Monoxide: 193.13 μg/m3
Nitrogen Dioxide: 3.55 μg/m3
Sulphur Dioxide: 1.61 μg/m3
Ozone: 81.96 μg/m3

Astronomical

Sunrise: 6:38 AM
Sun Transit: 1:35 PM
Sunset: 8:35 PM
Daylight: 13 hrs 57 mins
Moonrise: 10:24 AM
Moon Transit: 6:53 PM
Moonset: 2:25 AM
Moon Phase: Waxing Crescent
Moon Illumination: 28.4%

Best Times for Fishing or Hunting

Major Periods

6:39 AM - 9:09 AM
6:23 PM - 8:53 PM

Minor Periods

9:54 AM - 11:24 AM
1:55 AM - 3:25 AM

Action Rating: 4 out of 5

Thursday, April 23, 2026

Weather Forecast

Patchy rain nearby
47.7°F
40.6°F
43.8°F
80%
0 in
89%
0%
11.6 mph
4.5


Air Quality

AQI: 1 - Good
PM2.5: 3.68 μg/m3
PM10: 4.25 μg/m3
Carbon Monoxide: 193.47 μg/m3
Nitrogen Dioxide: 3.6 μg/m3
Sulphur Dioxide: 1.56 μg/m3
Ozone: 79.76 μg/m3

Astronomical

Sunrise: 6:36 AM
Sun Transit: 1:35 PM
Sunset: 8:37 PM
Daylight: 14 hrs mins
Moonrise: 11:42 AM
Moon Transit: 7:50 PM
Moonset: 3:10 AM
Moon Phase: First Quarter
Moon Illumination: 39.1%

Best Times for Fishing or Hunting

Major Periods

7:39 AM - 10:09 AM
7:20 PM - 9:50 PM

Minor Periods

11:12 AM - 12:42 AM
2:40 AM - 4:10 AM

Action Rating: 2 out of 5

Friday, April 24, 2026

Weather Forecast

Patchy rain nearby
47.4°F
38.2°F
41°F
64%
0.02 in
89%
0%
15.9 mph
5.2


Air Quality

AQI: 1 - Good
PM2.5: 5.51 μg/m3
PM10: 6.5 μg/m3
Carbon Monoxide: 178.93 μg/m3
Nitrogen Dioxide: 3.05 μg/m3
Sulphur Dioxide: 1.62 μg/m3
Ozone: 92.77 μg/m3

Astronomical

Sunrise: 6:35 AM
Sun Transit: 1:35 PM
Sunset: 8:38 PM
Daylight: 14 hrs 3 mins
Moonrise: 1:02 PM
Moon Transit: 8:43 PM
Moonset: 3:43 AM
Moon Phase: First Quarter
Moon Illumination: 50.4%

Best Times for Fishing or Hunting

Major Periods

8:34 AM - 11:04 AM
8:13 PM - 10:43 PM

Minor Periods

12:32 AM - 2:02 PM
3:13 AM - 4:43 AM

Action Rating: 3 out of 5

Saturday, April 25, 2026

Weather Forecast

Patchy rain nearby
55.6°F
39°F
44.2°F
67%
0.01 in
73%
0%
6.7 mph
0.3


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: 6:33 AM
Sun Transit: 1:35 PM
Sunset: 8:39 PM
Daylight: 14 hrs 6 mins
Moonrise: 2:19 PM
Moon Transit: 9:31 PM
Moonset: 4:08 AM
Moon Phase: First Quarter
Moon Illumination: 61.6%

Best Times for Fishing or Hunting

Major Periods

9:24 AM - 11:54 AM
9:01 PM - 11:31 PM

Minor Periods

1:49 PM - 3:19 PM
3:38 AM - 5:08 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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