when is the salmon run in ontario

The salmon run in Ontario typically starts in August, but the peak of the salmon run occurs from mid to late September through early October. Some salmon runs can extend into early November, but this is less common. The timing of the salmon run is influenced by water temperature, river water levels, and rain, which trigger the salmon to migrate upstream to spawn. After a rain and temperature drops in September and October, salmon runs tend to intensify. The salmon run is usually strongest 1 to 3 days after rain events in this period.