FishCondishAu Sable River, MI Fishing Report & Live Conditions
Au Sable River, MI fishing report
The Au Sable is primarily known as blue-ribbon trout water, and brown and brook trout define the upper and middle reaches through spring and summer. As you move downstream toward Oscoda and the Lake Huron mouth, the fishery shifts dramatically — walleye stack up in river-mouth current seams, especially during spring and fall runs, while smallmouth bass dominate the rocky riffles and mid-river runs through summer. Largemouth show up in slower, woody edge water. Chain pickerel haunt the weedy backwaters, catfish work deeper bends after dark, and bluegill and perch fill in the panfish action near the mouth through warm months.
For trout in the riffles, swing soft-hackle wet flies or drift small nymphs and minnow-pattern streamers through the bubble lines where current breaks behind rocks — water temps in the low-to-mid 50s trigger the best feeding. Smallmouth in summer runs respond well to crawfish-pattern tubes and hair jigs bounced along gravel transitions. For walleye near the mouth, target the downstream edge of current seams with jig-and-minnow rigs or bottom-bouncing crawler harnesses, especially when river flow drops and clears in early fall. Read the color change where river current meets lake water — fish stack hard along that transition.
Au Sable River, MI river flow
The closest active USGS gauge to Au Sable River, MI is PINE RIVER AT KINGS CORNER RD NR OSCODA, MI (site 04137680), about 11.5 miles away. It drains roughly 237 square miles. Flow is the single best predictor of where fish sit in moving water, so it is worth knowing what normal looks like before you read today's number.
In August, this gauge typically runs about 73 cfs.
| Month | Median flow |
|---|---|
| Jan | 104 cfs |
| Feb | 111 cfs |
| Mar | 170 cfs |
| Apr | 263 cfs |
| May | 182 cfs |
| Jun | 117 cfs |
| Jul | 112 cfs |
| Aug | 73 cfs |
| Sep | 71 cfs |
| Oct | 82 cfs |
| Nov | 92 cfs |
| Dec | 97 cfs |
Median flow from the USGS daily-statistics record. For the live flow, gage height, water temperature, and today's fishing score, open the Au Sable River, MI dashboard.
What's biting near Au Sable River, MI
The species most likely to be feeding the runs, the riffles, and the river mouth: largemouth and smallmouth bass, trout, walleye, chain pickerel, catfish, and panfish. FishCondish grades every hour of the day for Au Sable River, MI and gives each species its own bite forecast, so you can see which window is worth fishing before you load the truck.
Au Sable River, MI fishing FAQ
What fish can you catch at Au Sable River, MI?
The species bite forecast for Au Sable River, MI covers what's likely feeding there, including largemouth and smallmouth bass, trout, walleye, chain pickerel, catfish, and panfish — and updates with the live conditions.
What's the best time of day to fish Au Sable River, MI?
Dawn and dusk are usually the most productive windows on the runs, the riffles, and the river mouth, particularly when the barometric pressure is steady or falling. FishCondish grades every hour of the day so you can pick the best one.
When is the best season to fish Au Sable River, MI?
Spring and fall are typically strongest on the runs, the riffles, and the river mouth as water temperatures sit in the productive range, with summer fishing best early and late in the day. It varies year to year, so check the live conditions before you head out.
How do I know if it's a good day to fish Au Sable River, MI?
FishCondish combines wind, water level, water temperature, pressure trend, and moon phase into a single 1–10 fishing score for Au Sable River, MI, updated in real time — a quick go/no-go read before you make the trip.
Fishing tips for Au Sable River, MI
New to these waters? Start with these beginner-friendly guides: