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

Current Water Temperature

43.5°F

Measurement Time: Wednesday, May 21, 2025, 10:42 AM EDT

Temperature Locations

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Local Points of Interest

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

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St. Marys River

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

Elevation Above Sea Level: 568 feet / 173 meters

Sensor Depth: -8.2 feet / -2.5 meters

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 (125.0 mi)
Au Sable River, Mio, MI (126.4 mi)

Weather for Sault Ste. Marie, Michigan

Current Weather

51.1°F
Partly Cloudy
Conditions: Partly Cloudy
Humidity: 54%
Feels Like: 47.1°F
Wind: NE 10.7 mph
Wind Gusts: 12.3 mph
Pressure: 29.93 in
Precipitation: 0 in
Cloud Cover: 0%
Visibility: 9 mi
UV Index: 2.9

Five Day Weather Forecast

Patchy rain nearby
Wed
H: 52°F
L: 38°F
Patchy rain nearby
Thu
H: 53°F
L: 40°F
Sunny
Fri
H: 59°F
L: 37°F
Patchy rain nearby
Sat
H: 64°F
L: 42°F
Patchy rain nearby
Sun
H: 61°F
L: 42°F

Air Quality

Carbon Monoxide: 0 μg/m3
Nitrogen Dioxide: 0 μg/m3
Sulphur Dioxide: 0 μg/m3
Ozone: 0 μg/m3

Astronomical

Sunrise: 5:57 AM
Sun Transit: 1:33 PM
Sunset: 9:12 PM
Daylight: 15 hrs 15 mins
Moonrise: 3:09 AM
Moon Transit: 8:41 AM
Moonset: 2:27 PM
Moon Phase: Last Quarter
Moon Illumination: 22.6%

Best Times for Fishing or Hunting

Major Periods

8:11 AM - 10:41 AM
9:21 PM - 11:51 PM

Minor Periods

1:57 PM - 3:27 PM
2:39 AM - 4:09 AM

Action Rating: 3 out of 5

Wednesday, May 21, 2025

Weather Forecast

Conditions: Patchy rain nearby
Average Temperature: 46°F
Average Humidity: 64%
Chance of Rain: 86%
Wind: 11.2 mph
UV Index: 1.2

Air Quality

AQI: 1 - Good
PM2.5: 0.78 μg/m3
PM10: 0.9 μg/m3
Carbon Monoxide: 232.88 μg/m3
Nitrogen Dioxide: 1.39 μg/m3
Sulphur Dioxide: 0.15 μg/m3
Ozone: 65.15 μg/m3

Astronomical

Sunrise: 5:57 AM
Sun Transit: 1:33 PM
Sunset: 9:12 PM
Daylight: 15 hrs 15 mins
Moonrise: 3:09 AM
Moon Transit: 8:41 AM
Moonset: 2:27 PM
Moon Phase: Last Quarter
Moon Illumination: 22.6%

Best Times for Fishing or Hunting

Major Periods

8:11 AM - 10:41 AM
9:21 PM - 11:51 PM

Minor Periods

1:57 PM - 3:27 PM
2:39 AM - 4:09 AM

Action Rating: 3 out of 5

Thursday, May 22, 2025

Weather Forecast

Conditions: Patchy rain nearby
Average Temperature: 45.3°F
Average Humidity: 83%
Chance of Rain: 88%
Wind: 8.5 mph
UV Index: 0

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: 5:56 AM
Sun Transit: 1:33 PM
Sunset: 9:13 PM
Daylight: 15 hrs 17 mins
Moonrise: 3:27 AM
Moon Transit: 12:46 AM
Moonset: 3:45 PM
Moon Phase: Waning Crescent
Moon Illumination: 13.9%

Best Times for Fishing or Hunting

Major Periods

12:16 AM - 2:46 PM
12:16 AM - 2:46 PM

Minor Periods

3:15 PM - 4:45 PM
2:57 AM - 4:27 AM

Action Rating: 2 out of 5

Friday, May 23, 2025

Weather Forecast

Conditions: Sunny
Average Temperature: 48.4°F
Average Humidity: 64%
Chance of Rain: 0%
Wind: 7.6 mph
UV Index: 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: 5:55 AM
Sun Transit: 1:34 PM
Sunset: 9:14 PM
Daylight: 15 hrs 19 mins
Moonrise: 3:45 AM
Moon Transit: 10:17 AM
Moonset: 5:07 PM
Moon Phase: Waning Crescent
Moon Illumination: 7.0%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
9:47 AM - 12:17 AM

Minor Periods

4:37 PM - 6:07 PM
3:15 AM - 4:45 AM

Action Rating: 2 out of 5

Saturday, May 24, 2025

Weather Forecast

Conditions: Patchy rain nearby
Average Temperature: 52.4°F
Average Humidity: 64%
Chance of Rain: 88%
Wind: 6.7 mph
UV Index: 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: 5:54 AM
Sun Transit: 1:34 PM
Sunset: 9:15 PM
Daylight: 15 hrs 21 mins
Moonrise: 4:05 AM
Moon Transit: 11:09 AM
Moonset: 6:32 PM
Moon Phase: Waning Crescent
Moon Illumination: 2.4%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
10:39 AM - 1:09 PM

Minor Periods

6:02 PM - 7:32 PM
3:35 AM - 5:05 AM

Action Rating: 2 out of 5

Sunday, May 25, 2025

Weather Forecast

Conditions: Patchy rain nearby
Average Temperature: 51.5°F
Average Humidity: 73%
Chance of Rain: 79%
Wind: 6 mph
UV Index: 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: 5:53 AM
Sun Transit: 1:34 PM
Sunset: 9:16 PM
Daylight: 15 hrs 23 mins
Moonrise: 4:29 AM
Moon Transit: 12:04 AM
Moonset: 8:00 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.2%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
11:34 AM - 2:04 PM

Minor Periods

7:30 PM - 9:00 PM
3:59 AM - 5:29 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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