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

Current Water Temperature

38.3°F

Measurement Time: Wednesday, April 22, 2026, 3:48 PM EDT

Temperature Locations

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Local Points of Interest

Rotary Park; Rotary Island; Steers Island; Island Number One; Sault Sainte Marie

St. Marys River

Station Name: Little Rapids
Data Source: NOAA Tides and Currents

Elevation Above Sea Level: 568 feet

Sensor Depth: -8 feet

Nearest Address:
1425 Riverside Dr
Sault Ste. Marie, MI 49783
Chippewa County

GPS Coordinates: 46.485832, -84.301666

Nearby Water Temperatures

St. Marys River, Sault Ste. Marie, MI (3.5 mi)
St. Marys River, Barbeau, MI (14.5 mi)
St. Marys River, Barbeau, MI (16.2 mi)
Lake Huron, De Tour Village, MI (39.2 mi)
Lake Huron, Bois Blanc Island, MI (49.9 mi)
Straits of Mackinac, Mackinaw City, MI (50.9 mi)
Seul Choix Bay, Port Inland, MI (83.1 mi)
Little Traverse Bay, Petoskey, MI (83.7 mi)
Lake Huron, Alpena, MI (105.3 mi)
Miners River, Munising, MI (106.5 mi)
Thunder Bay River, Alpena, MI (106.9 mi)
Lake Huron, Alpena, MI (114.8 mi)
North Branch Au Sable River, Grayling, MI (122.4 mi)
Au Sable River, Luzerne, MI (125 mi)
Au Sable River, Mio, MI (126.4 mi)

Weather for Sault Ste. Marie, Michigan

Current Weather

54.3°F
Sunny
Sunny
54.3°F
52.7°F
41%
WNW 3.4 mph
4.1 mph
51.7°F
48.6°F
0 in
0%
24 mi
1016 mbar
5.4

Five Day Weather Forecast

Sunny
Wed
H: 54°F
L: 27°F
Partly Cloudy
Thu
H: 51°F
L: 40°F
Patchy rain nearby
Fri
H: 51°F
L: 38°F
Patchy rain nearby
Sat
H: 53°F
L: 34°F
Sunny
Sun
H: 59°F
L: 33°F

Air Quality

AQI: 1 - Good
PM2.5: 2.75 μg/m3
PM10: 3.65 μg/m3
Carbon Monoxide: 195.85 μg/m3
Nitrogen Dioxide: 4.75 μg/m3
Sulphur Dioxide: 1.95 μg/m3
Ozone: 92 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: 6:52 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
6:22 PM - 8:52 PM

Minor Periods

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

Action Rating: 4 out of 5

Wednesday, April 22, 2026

Weather Forecast

Sunny
54.1°F
26.6°F
40.5°F
75%
0 in
0%
0%
5.8 mph
6.1


Air Quality

AQI: 1 - Good
PM2.5: 4.62 μg/m3
PM10: 5.22 μg/m3
Carbon Monoxide: 188.73 μg/m3
Nitrogen Dioxide: 3.68 μg/m3
Sulphur Dioxide: 1.65 μg/m3
Ozone: 86.08 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: 6:52 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
6:22 PM - 8:52 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

Partly Cloudy
50.6°F
40°F
45°F
75%
0 in
0%
0%
14.1 mph
5.6


Air Quality

AQI: 1 - Good
PM2.5: 3.62 μg/m3
PM10: 4.27 μg/m3
Carbon Monoxide: 187.33 μg/m3
Nitrogen Dioxide: 5.02 μg/m3
Sulphur Dioxide: 1.64 μg/m3
Ozone: 80.12 μg/m3

Astronomical

Sunrise: 6:36 AM
Sun Transit: 1:35 PM
Sunset: 8:36 PM
Daylight: 14 hrs mins
Moonrise: 11:42 AM
Moon Transit: 7:50 PM
Moonset: 3:09 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
2:39 AM - 4:09 AM

Action Rating: 2 out of 5

Friday, April 24, 2026

Weather Forecast

Patchy rain nearby
51.3°F
38.4°F
43°F
72%
0.13 in
86%
0%
20.1 mph
5.9


Air Quality

AQI: 1 - Good
PM2.5: 3.54 μg/m3
PM10: 4.8 μg/m3
Carbon Monoxide: 160.37 μg/m3
Nitrogen Dioxide: 2.03 μg/m3
Sulphur Dioxide: 1.28 μg/m3
Ozone: 87.6 μg/m3

Astronomical

Sunrise: 6:34 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: 3:42 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
3:12 AM - 4:42 AM

Action Rating: 3 out of 5

Saturday, April 25, 2026

Weather Forecast

Patchy rain nearby
53.1°F
33.6°F
42.4°F
76%
0.04 in
81%
0%
15.2 mph
1.2


Air Quality

AQI: 1 - Good
PM2.5: 2.99 μg/m3
PM10: 3.31 μg/m3
Carbon Monoxide: 168.6 μg/m3
Nitrogen Dioxide: 3.07 μg/m3
Sulphur Dioxide: 1.37 μg/m3
Ozone: 83.6 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: 4:07 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
3:37 AM - 5:07 AM

Action Rating: 3 out of 5

Sunday, April 26, 2026

Weather Forecast

Sunny
59.2°F
33.3°F
44.7°F
69%
0 in
0%
0%
5.6 mph
0.3


Air Quality

AQI: 1 - Good
PM2.5: 4.84 μg/m3
PM10: 5.1 μg/m3
Carbon Monoxide: 182.2 μg/m3
Nitrogen Dioxide: 6.27 μg/m3
Sulphur Dioxide: 1.86 μg/m3
Ozone: 62.15 μg/m3

Astronomical

Sunrise: 6:31 AM
Sun Transit: 1:35 PM
Sunset: 8:40 PM
Daylight: 14 hrs 9 mins
Moonrise: 3:32 PM
Moon Transit: 10:15 PM
Moonset: 4:27 AM
Moon Phase: First Quarter
Moon Illumination: 72.3%

Best Times for Fishing or Hunting

Major Periods

10:10 AM - 12:40 AM
12:00 AM - 12:00 AM

Minor Periods

3:02 PM - 4:32 PM
3:57 AM - 5:27 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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