Every fall, Ontario transforms into a glorious kaleidoscope of colours as the leaves begin to signal the arrival of cooler weather.
This year, the first day of fall is September 22, 2025, as well as the Autumn Equinox. The best time for leaf peeping season is typically from late September to early October in northern and central regions (like Algonquin Park and Muskoka), and then mid to late October in southern areas (such as Niagara and southwestern Ontario), following a north-to-south progression.
With above-normal temperatures forecasted into November for the province, the exact timing could vary; one of the best resources for current viewing conditions is Ontario Parks’ Fall Colours Report.
The report is updated regularly throughout the season, displaying an interactive map with colour-coded leaf icons which lets you see the current colour change in Ontario’s provincial parks.

The colour of the leaf icon, which ranges from dark green to dark red, represents each specific park and its up-to-date fall colour report, and the colour of each region reflects the average of all parks within that region.
As of September 9, the majority of the province is still green, with less than 10 per cent of leaf colour change. At the time of writing, only two Ontario Parks are at 20 per cent of colour change, those being Restoule and Voyageur Provincial Parks.
Algonquin Provincial Park is one of the most popular destinations for leaf peeping every fall, particularly along the Highway 60 Corridor; currently, it is only at 10 per cent colour change.
Factors like temperature and precipitation will also impact colour change, so keep an eye on the Ontario Parks website over the coming days and weeks for the most accurate predictions!