Water Temperature of the Au Sable River in South Branch, MI

Current Water Temperature

51.1°F

Measurement Time: Wednesday, May 13, 2026, 5:45 PM EDT

Temperature Locations

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Local Points of Interest

Loud Dam Pond

Au Sable River

Station Name: AU SABLE RIVER NEAR SOUTH BRANCH, MI
Data Source: Water Data - usgc.gov

Elevation Above Sea Level: 722 feet

Nearest Address:
4980 Loud Dam Rd
South Branch, MI 48737
Iosco County

GPS Coordinates: 44.46334886, -83.7213714

Nearby Water Temperatures

Au Sable River, Glennie, MI (2.4 mi)
Au Sable River, Oscoda, MI (7.4 mi)
Au Sable River, Glennie, MI (7.8 mi)
Au Sable River, Curran, MI (11.8 mi)
Au Sable River, Oscoda, MI (14.3 mi)
Au Sable River, Mio, MI (24.3 mi)
Rifle River, Sterling, MI (30.8 mi)
Au Sable River, Luzerne, MI (31.7 mi)
South Branch Au Sable River, Grayling, MI (37.6 mi)
North Branch Au Sable River, Grayling, MI (38.6 mi)
Lake Huron, Alpena, MI (42.5 mi)
Thunder Bay River, Alpena, MI (43.8 mi)
Manistee River, Grayling, MI (57.6 mi)
Lake Huron, Port Austin, MI (65.7 mi)
Tittabawassee River, Freeland, MI (67.9 mi)

Weather for South Branch, Michigan

Current Weather

46.9°F
Overcast
Overcast
41.6°F
42.7°F
76%
NNW 11.9 mph
17 mph
38.2°F
37.8°F
0 in
100%
9 mi
1014 mbar
0

Five Day Weather Forecast

Patchy rain nearby
Wed
H: 46°F
L: 41°F
Sunny
Thu
H: 62°F
L: 40°F
Partly Cloudy
Fri
H: 58°F
L: 40°F
Patchy rain nearby
Sat
H: 79°F
L: 47°F
Patchy rain nearby
Sun
H: 66°F
L: 48°F

Air Quality

AQI: 1 - Good
PM2.5: 5.85 μg/m3
PM10: 6.25 μg/m3
Carbon Monoxide: 132.85 μg/m3
Nitrogen Dioxide: 2.35 μg/m3
Sulphur Dioxide: 1.15 μg/m3
Ozone: 69 μg/m3

Astronomical

Sunrise: 6:10 AM
Sun Transit: 1:31 PM
Sunset: 8:54 PM
Daylight: 14 hrs 44 mins
Moonrise: 4:08 AM
Moon Transit: 12:00 AM
Moonset: 5:19 PM
Moon Phase: Waning Crescent
Moon Illumination: 3.8%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
12:00 AM - 12:00 AM

Minor Periods

4:49 PM - 6:19 PM
3:38 AM - 5:08 AM

Action Rating: 2 out of 5

Wednesday, May 13, 2026

Weather Forecast

Patchy rain nearby
46.4°F
41°F
45.1°F
87%
0.08 in
86%
0%
17.2 mph
2.7


Air Quality

AQI: 1 - Good
PM2.5: 4.59 μg/m3
PM10: 4.88 μg/m3
Carbon Monoxide: 157.97 μg/m3
Nitrogen Dioxide: 3.45 μg/m3
Sulphur Dioxide: 1.52 μg/m3
Ozone: 76.44 μg/m3

Astronomical

Sunrise: 6:10 AM
Sun Transit: 1:31 PM
Sunset: 8:54 PM
Daylight: 14 hrs 44 mins
Moonrise: 4:08 AM
Moon Transit: 12:00 AM
Moonset: 5:19 PM
Moon Phase: Waning Crescent
Moon Illumination: 3.8%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
12:00 AM - 12:00 AM

Minor Periods

4:49 PM - 6:19 PM
3:38 AM - 5:08 AM

Action Rating: 2 out of 5

Thursday, May 14, 2026

Weather Forecast

Sunny
61.6°F
39.7°F
50.1°F
62%
0 in
0%
0%
11.6 mph
6.9


Air Quality

AQI: 1 - Good
PM2.5: 4.88 μg/m3
PM10: 5.29 μg/m3
Carbon Monoxide: 133.81 μg/m3
Nitrogen Dioxide: 1.84 μg/m3
Sulphur Dioxide: 1.03 μg/m3
Ozone: 74.96 μg/m3

Astronomical

Sunrise: 6:09 AM
Sun Transit: 1:31 PM
Sunset: 8:55 PM
Daylight: 14 hrs 46 mins
Moonrise: 4:30 AM
Moon Transit: 11:25 AM
Moonset: 6:38 PM
Moon Phase: Waning Crescent
Moon Illumination: 0.7%

Best Times for Fishing or Hunting

Major Periods

12:00 AM - 12:00 AM
10:55 AM - 1:25 PM

Minor Periods

6:08 PM - 7:38 PM
4:00 AM - 5:30 AM

Action Rating: 2 out of 5

Friday, May 15, 2026

Weather Forecast

Partly Cloudy
58.1°F
40°F
50.1°F
70%
0 in
0%
0%
11.4 mph
0.4


Air Quality

AQI: 1 - Good
PM2.5: 5.68 μg/m3
PM10: 6.23 μg/m3
Carbon Monoxide: 149.45 μg/m3
Nitrogen Dioxide: 4.29 μg/m3
Sulphur Dioxide: 1.53 μg/m3
Ozone: 72.96 μg/m3

Astronomical

Sunrise: 6:07 AM
Sun Transit: 1:31 PM
Sunset: 8:56 PM
Daylight: 14 hrs 49 mins
Moonrise: 4:55 AM
Moon Transit: 12:19 AM
Moonset: 8:02 PM
Moon Phase: New
Moon Illumination: 0.1%

Best Times for Fishing or Hunting

Major Periods

12:14 AM - 2:44 AM
11:49 AM - 2:19 PM

Minor Periods

7:32 PM - 9:02 PM
4:25 AM - 5:55 AM

Action Rating: 5 out of 5

Saturday, May 16, 2026

Weather Forecast

Patchy rain nearby
78.6°F
47.3°F
62.9°F
76%
0.08 in
77%
0%
10.1 mph
4


Air Quality

AQI: 1 - Good
PM2.5: 5.72 μg/m3
PM10: 5.91 μg/m3
Carbon Monoxide: 156.29 μg/m3
Nitrogen Dioxide: 3.06 μg/m3
Sulphur Dioxide: 2.49 μg/m3
Ozone: 97.84 μg/m3

Astronomical

Sunrise: 6:06 AM
Sun Transit: 1:31 PM
Sunset: 8:57 PM
Daylight: 14 hrs 51 mins
Moonrise: 5:26 AM
Moon Transit: 1:19 PM
Moonset: 9:27 PM
Moon Phase: New
Moon Illumination: 2.0%

Best Times for Fishing or Hunting

Major Periods

1:11 AM - 3:41 AM
12:49 AM - 3:19 PM

Minor Periods

8:57 PM - 10:27 PM
4:56 AM - 6:26 AM

Action Rating: 5 out of 5

Sunday, May 17, 2026

Weather Forecast

Patchy rain nearby
66.3°F
48.1°F
57.1°F
67%
0.01 in
88%
0%
10.5 mph
3


Air Quality

AQI: 1 - Good
PM2.5: 2.15 μg/m3
PM10: 2.25 μg/m3
Carbon Monoxide: 140.85 μg/m3
Nitrogen Dioxide: 2.45 μg/m3
Sulphur Dioxide: 1.15 μg/m3
Ozone: 82 μg/m3

Astronomical

Sunrise: 6:05 AM
Sun Transit: 1:31 PM
Sunset: 8:58 PM
Daylight: 14 hrs 53 mins
Moonrise: 6:09 AM
Moon Transit: 2:23 PM
Moonset: 10:48 PM
Moon Phase: New
Moon Illumination: 0.2%

Best Times for Fishing or Hunting

Major Periods

2:13 AM - 4:43 AM
1:53 PM - 4:23 PM

Minor Periods

10:18 PM - 11:48 PM
5:39 AM - 7:09 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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