We have been to Rainy in Mid to late September for 7 years. Fishing can vary, but it’s typically pretty good and we have always put some big walleye and plenty of eaters in the boat.
When you come through the narrows (from west to east), there is an inside turn edge to the east and a bit north that we have taken many walleye off of (especially when the wind is from the south and it’s rough there). Look 25-35 feet and be *very* careful of the canadian border – you’ll be within 100-200 yards of it and this is an area where I have seen a couple of boats get popped for fishing in canadian water. Some *big* northern pike here too – we’ve seen guys trolling big baits for them here too.
This is all called “Saginaw Bay”. There are a half-dozen or so good mid bay reefs as you venture a bit south and east towards Shelland Island and Blueberry Island. We’ve found that using our electronics extensively on these reefs is critical. 90% of the reef will have little or no fish, then you’ll find a pod of them and pick up 6 fish in 10 minutes. Spot-lock is super useful as well – it’s rarely calm in Saginaw Bay. Sometimes it takes parking right on top of the fish for 10 minutes to get them to go. We have had days where they bite *very* light and you bring up nothing but minnow head on the jig or a “skinned” shiner on the jig. We usually do not find any need to go past Blueberry and further east.
We primarily fish jig/minnow on a rod with braid and a flourocarbon leader tied on with a double-uni knot. Even in the stained water, having the flouro leader makes a difference. We hav also pulled leadcore with flicker shads over the reefs as well – usually this is if they won’t go on jigs and we need to get a reaction bite.
We get both “river run” chubs (they vary in size) and shiners. Sometimes pulling crawlers will be good, but we’ve usually done just fine on minnows. Sometimes shiners are very much preferred. Buy some of each and experiment early in the trip before laying in a supply is my advice.
Weather that time of year has varied from 70’s and tshirt weather to, more often, 40-50’s and wind and rain. Be prepped for the lousy weather with plenty of warm clothes and good raingear. Better to be prepared and not need…
Be prepared for lots of traffic on the water. It was usually a ghost town pre-Covid, but last year was nuts. No kidding – probably 10x the number of people and boats than we’ve seen at anytime in previous years. Maybe that will relax with the border being open now.
Good Luck!
Scott