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

Current Water Temperature

54.3°F

Measurement Time: Wednesday, April 22, 2026, 10:45 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

34.2°F
Clear
Clear
31.3°F
44.8°F
86%
ESE 3.4 mph
7 mph
43°F
20.6°F
0 in
0%
9 mi
1016 mbar
0

Five Day Weather Forecast

Sunny
Thu
H: 74°F
L: 44°F
Moderate rain
Fri
H: 55°F
L: 43°F
Partly Cloudy
Sat
H: 60°F
L: 43°F
Cloudy
Sun
H: 55°F
L: 38°F
Sunny
Mon
H: 60°F
L: 36°F

Air Quality

AQI: 1 - Good
PM2.5: 4.35 μg/m3
PM10: 4.45 μg/m3
Carbon Monoxide: 180.85 μg/m3
Nitrogen Dioxide: 3.45 μg/m3
Sulphur Dioxide: 1.45 μg/m3
Ozone: 93 μg/m3

Astronomical

Sunrise: 6:38 AM
Sun Transit: 1:33 PM
Sunset: 8:30 PM
Daylight: 13 hrs 52 mins
Moonrise: 11:48 AM
Moon Transit: 7:48 PM
Moonset: 2:58 AM
Moon Phase: First Quarter
Moon Illumination: 39.1%

Best Times for Fishing or Hunting

Major Periods

7:42 AM - 10:12 AM
7:18 PM - 9:48 PM

Minor Periods

11:18 AM - 12:48 AM
2:28 AM - 3:58 AM

Action Rating: 2 out of 5

Thursday, April 23, 2026

Weather Forecast

Sunny
74.3°F
43.7°F
55.2°F
49%
0 in
0%
0%
9.8 mph
6.3


Air Quality

AQI: 1 - Good
PM2.5: 4.6 μg/m3
PM10: 5.02 μg/m3
Carbon Monoxide: 187.61 μg/m3
Nitrogen Dioxide: 3.25 μg/m3
Sulphur Dioxide: 1.73 μg/m3
Ozone: 102.88 μg/m3

Astronomical

Sunrise: 6:38 AM
Sun Transit: 1:33 PM
Sunset: 8:30 PM
Daylight: 13 hrs 52 mins
Moonrise: 11:48 AM
Moon Transit: 7:48 PM
Moonset: 2:58 AM
Moon Phase: First Quarter
Moon Illumination: 39.1%

Best Times for Fishing or Hunting

Major Periods

7:42 AM - 10:12 AM
7:18 PM - 9:48 PM

Minor Periods

11:18 AM - 12:48 AM
2:28 AM - 3:58 AM

Action Rating: 2 out of 5

Friday, April 24, 2026

Weather Forecast

Moderate rain
54.6°F
43.1°F
48.5°F
82%
0.27 in
87%
0%
12.5 mph
5.7


Air Quality

AQI: 1 - Good
PM2.5: 14.25 μg/m3
PM10: 14.69 μg/m3
Carbon Monoxide: 201.09 μg/m3
Nitrogen Dioxide: 4.74 μg/m3
Sulphur Dioxide: 2.53 μg/m3
Ozone: 93.84 μg/m3

Astronomical

Sunrise: 6:36 AM
Sun Transit: 1:33 PM
Sunset: 8:31 PM
Daylight: 13 hrs 55 mins
Moonrise: 1:06 PM
Moon Transit: 8:40 PM
Moonset: 3:33 AM
Moon Phase: First Quarter
Moon Illumination: 50.4%

Best Times for Fishing or Hunting

Major Periods

8:37 AM - 11:07 AM
8:10 PM - 10:40 PM

Minor Periods

12:36 AM - 2:06 PM
3:03 AM - 4:33 AM

Action Rating: 3 out of 5

Saturday, April 25, 2026

Weather Forecast

Partly Cloudy
60°F
42.5°F
49.2°F
77%
0 in
0%
0%
13.6 mph
5.7


Air Quality

AQI: 1 - Good
PM2.5: 6.71 μg/m3
PM10: 6.95 μg/m3
Carbon Monoxide: 170.77 μg/m3
Nitrogen Dioxide: 3.27 μg/m3
Sulphur Dioxide: 1.41 μg/m3
Ozone: 88.52 μg/m3

Astronomical

Sunrise: 6:35 AM
Sun Transit: 1:32 PM
Sunset: 8:32 PM
Daylight: 13 hrs 58 mins
Moonrise: 2:21 PM
Moon Transit: 9:28 PM
Moonset: 4:00 AM
Moon Phase: First Quarter
Moon Illumination: 61.6%

Best Times for Fishing or Hunting

Major Periods

9:27 AM - 11:57 AM
8:58 PM - 11:28 PM

Minor Periods

1:51 PM - 3:21 PM
3:30 AM - 5:00 AM

Action Rating: 3 out of 5

Sunday, April 26, 2026

Weather Forecast

Cloudy
54.5°F
38.2°F
44.6°F
72%
0 in
0%
0%
10.1 mph
6


Air Quality

AQI: 1 - Good
PM2.5: 5.55 μg/m3
PM10: 5.99 μg/m3
Carbon Monoxide: 163.48 μg/m3
Nitrogen Dioxide: 2.6 μg/m3
Sulphur Dioxide: 1.73 μg/m3
Ozone: 87.8 μg/m3

Astronomical

Sunrise: 6:33 AM
Sun Transit: 1:32 PM
Sunset: 8:34 PM
Daylight: 14 hrs mins
Moonrise: 3:32 PM
Moon Transit: 10:13 PM
Moonset: 4:22 AM
Moon Phase: First Quarter
Moon Illumination: 72.3%

Best Times for Fishing or Hunting

Major Periods

10:13 AM - 12:43 AM
12:00 AM - 12:00 AM

Minor Periods

3:02 PM - 4:32 PM
3:52 AM - 5:22 AM

Action Rating: 2 out of 5

Monday, April 27, 2026

Weather Forecast

Sunny
60.2°F
35.8°F
46.1°F
71%
0 in
0%
0%
13 mph
0.4


Air Quality

AQI: 1 - Good
PM2.5: 11.95 μg/m3
PM10: 12.1 μg/m3
Carbon Monoxide: 201.47 μg/m3
Nitrogen Dioxide: 3.48 μg/m3
Sulphur Dioxide: 2.62 μg/m3
Ozone: 93.62 μg/m3

Astronomical

Sunrise: 6:32 AM
Sun Transit: 1:32 PM
Sunset: 8:35 PM
Daylight: 14 hrs 3 mins
Moonrise: 4:41 PM
Moon Transit: 10:55 PM
Moonset: 4:41 AM
Moon Phase: Waxing Gibbous
Moon Illumination: 81.8%

Best Times for Fishing or Hunting

Major Periods

10:56 AM - 1:26 PM
12:00 AM - 12:00 AM

Minor Periods

4:11 PM - 5:41 PM
4:11 AM - 5:41 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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