Spring salmon season builds on Indiana's Lake Michigan shore

What's Biting

What's Next

With no buoy data available for Indiana's Lake Michigan nearshore zone this report cycle, precise short-term condition modeling isn't possible. Anglers are strongly encouraged to check the IL/IN Sea Grant nearshore buoy network — three stations covering the southern Lake Michigan basin — for real-time wave heights, water temperatures, and wind readings before committing to an offshore run. Spring weather on southern Lake Michigan is notoriously variable; southwest swells and northwest fronts can build chop rapidly in the 25–60 foot zone where most trolling occurs.

That said, mid-May follows a predictable seasonal arc on Indiana's shoreline. Nearshore water temperatures at this latitude typically sit in the low-to-mid 50s°F and climb gradually through Memorial Day weekend. Once surface temps consistently push past 52–55°F, coho salmon — primed by the strong alewife forage base documented by the WI DNR Lake Michigan Fishing Report for the 2024 season — tend to concentrate in the top 20–40 feet of the water column. Downrigger and lead-core trolling with spoons in chartreuse, pink, and silver patterns is the traditional approach for this phase of the season.

Chinook action is just beginning to build and should improve steadily through Memorial Day weekend and into June as water temps push into the upper 50s and baitfish schools stack near breakwaters and river mouths. The waning crescent moon this week supports early-morning feeding windows — dawn departures typically outperform afternoon runs before onshore winds build midday.

Yellow perch offer consistent structure-based action from harbor piers and breakwalls through late May, best targeted in 15–25 feet with jigging spoons or small minnow rigs worked near bottom. With the spring run winding down, steelhead are not a primary target at this point in the season — focus has shifted to salmon and trout trolling. Anglers should confirm all applicable species limits and size minimums with the Indiana DNR before keeping fish.

Context

The 2024 Lake Michigan salmon season set records that will serve as a reference point for years to come. The WI DNR Lake Michigan Fishing Report noted more than 210,000 coho salmon harvested lake-wide — a new all-time high — alongside more than 160,000 chinook, the most since 2012. The key driver was a recovery in Great Lakes alewife populations; stronger forage-year classes improved stocked-fish survival rates significantly through the lake system. Whether the 2026 season carries comparable energy will depend on how those alewife cohorts have held, but the structural forage conditions entering this year are favorable.

For Indiana's southern Lake Michigan shoreline specifically, mid-May falls squarely within the normal window for peak coho trolling. The spring salmon fishery at this latitude typically runs from late April through Memorial Day weekend, with coho being the primary near-term target and chinook activity beginning to overlap as the month closes out. No current-season reports from Indiana-specific charter or tackle-shop sources were available in this data cycle, so it is not possible to confirm whether 2026 is tracking early, late, or on schedule relative to a typical mid-May benchmark.

Michigan Sea Grant has flagged an emerging health consideration relevant to any Lake Michigan angler: a recent study found that many Great Lakes anglers have limited awareness of PFAS (per- and polyfluoroalkyl substances) risks associated with consuming locally caught fish, particularly near industrially developed shorelines. Anglers fishing Indiana's Lake Michigan corridor — which borders significant industrial infrastructure — may want to review current consumption advisories from state environmental authorities before keeping fish for the table. This does not affect where or how fish are targeted, but it is a meaningful factor in the keep-or-release decision near harbor and port areas.