Lake Ontario salmon on the feed as charter action peaks for late May
Strike Zone Charters (Lake Ontario) is calling it plainly: "salmon are here!!" Fishing has been very good over the past week, with brown trout and lake trout mixed into the catch alongside Chinook. Per that charter report, the action is concentrated in 100 to 160 feet of water, though productive depth shifts day to day as wind repositions the thermocline. Mag Dipsey Divers are the right tool when cold temps push fish deeper, and green, white, and chartreuse e-chips with Atomic hardware are the leading presentation. On the tributary side, USGS gauge 04250750 shows the river running at 99.8 cfs as of May 31 — a moderate, late-spring baseline that makes for accessible wading but reflects the seasonal gap before the fall tributary salmon push. A full moon on June 1 may extend feeding windows into low-light periods. This is the open-lake charter window to be on.
Current Conditions
- Moon
- Full Moon
- Tide / flow
- USGS gauge 04250750 reading 99.8 cfs as of May 31 — moderate late-spring baseline; wading conditions accessible on the tributaries.
- Weather
- Check local forecast before heading out.
New to these readings? What do water temp, cfs, tide, and moon phase actually mean for fishing?
What's Biting
Chinook Salmon
Mag Dipsey Divers with green or chartreuse e-chips, trolling 100-160 ft on the lake
Brown Trout
mixed into open-lake charter spread; check lower river mouth sections
Lake Trout
trolling open-lake depths alongside the salmon spread
Steelhead
spring run winding down; holdovers possible but not expected in numbers
What's Next
The open-lake charter bite is the clear opportunity right now, and Strike Zone Charters gives no reason to expect a slowdown in the coming days. The productive zone has held between 100 and 160 feet, but captains are emphasizing that depth preference shifts from day to day as wind events reposition the thermocline. Anyone planning a trip out of Pulaski, Oswego, or Port Ontario in the next few days should check in with their captain the morning of to confirm where the temperature break is holding and how deep the spread needs to run.
Gear-wise, Mag Dipsey Divers are the call when colder water pushes fish down, per Strike Zone Charters. Green, white, and chartreuse e-chips are the productive colors right now. If you are running your own boat, dial your downrigger through the full 100-to-160-foot column and watch the temperature display — the fish are following forage, and the forage tracks the thermal break.
The full moon peaking June 1 is worth planning around. Full moon phases can push feeding activity toward low-light windows, so early morning and late evening trolling runs deserve priority this week. Anglers on the water at first light or the hour before dark may see more consistent hook-ups than mid-afternoon passes through the same spread.
On the tributary end, June is a waiting game. The Salmon River and Oswego tributaries are settling into their summer low-flow period, with USGS gauge 04250750 reading 99.8 cfs as of May 31. That flow is accessible and wadeable, but the Chinook push into the river system is still roughly three months out — typically kicking off in late August with full runs building through September and October. Holdover brown trout can linger in the lower, cooler river sections near the lake mouth, and the lower Oswego corridor can offer early summer smallmouth in accessible numbers. Check state regulations before keeping anything during the off-season tributary window.
The near-term plan: if you have access to a charter or your own boat, the lake is the place to be right now. Tributary anglers should be patient — the fall reward is substantial, and a strong open-lake salmon presence through late May is generally a positive signal for the returning stock that will eventually push upriver.
Context
This stretch of the calendar — late May into early June — sits squarely in the inter-season gap for Lake Ontario tributary anglers. The spring steelhead run that draws significant crowds to the Salmon River out of Pulaski, NY from March through April is effectively complete by late May. What follows is a quieter period for the river itself that typically runs through July before water temperatures cool, flow picks up with early fall rains, and the first Chinook push arrives at the lower river mouth in late August.
The open-lake picture tells a different story. Lake Ontario's salmon fishery is historically active through spring and early summer, with fish feeding aggressively in the cold, stratified water column before the hard summer thermocline limits vertical flexibility. Strike Zone Charters' characterization of "very good" fishing through the late-May period is consistent with typical seasonal patterns — May and June are often peak months for lake charter production, with fish spread across mixed baitfish schools in the 100-to-160-foot range.
The USGS gauge 04250750 reading of 99.8 cfs is consistent with a normal late-May to early-June baseline for this tributary system. Post-snowmelt flows have largely subsided and the river is settling into its summer footing, which is where we would typically expect it to be at this point in the season.
No year-over-year comparative data is available in the current intelligence feeds to assess whether the 2026 open-lake salmon presence is running ahead of or behind historical timing. Strike Zone Charters' language suggests the bite is at least on schedule. For a full read on how the season is shaping up relative to prior years, local charter boards and the New York tributary guide community are the best sources to monitor as the summer progresses.
This report is synthesized by Hooked Fisherman from real-time NOAA buoy data, USGS stream gauges, and current reports across regional fishing blogs, captain updates, and angler forums. Source names are cited inline where they appear. Check local regulations before keeping fish. Never trust a single source for a trip decision.