Early autumn · Weather & things to do
Toronto in September
Toronto cools off: highs slip to 70°F (21°C), from 76°F in August, with lows of 60°F (15°C) and about 2.6 in (66 mm) of rain.
At 84/100 for comfort (3rd of 12), it's one of the best months to visit.
- Avg high
- 70°F (21°C)
- Avg low
- 60°F (15°C)
- Rain
- 2.6 in (66 mm)
- Humidity
- 74%
- Cloud cover
- 60%
- Daylight
- ~12 h 17 min
- Comfort score
- 84/100 · Great
What September feels like
Highs settle around 70°F (21°C), warm enough for short sleeves most of the day.
Lows average 60°F (15°C).
Showers are part of the month, adding up to about 2.6 in (66 mm).
Plan around September
September is one of Toronto's best months on the climate data.
- Last warm month for a while: October highs fall to 57°F.
- Last of the best-scoring months: by October, the score drops to 70/100.
- Comfort holds steady from August (86 → 84/100).
- September sits inside the May – Oct window our Toronto, Niagara & Prince Edward County route recommends.
What to pack for September
- Light, breathable clothes70°F afternoons
- Packable rain jacket or umbrellaabout 2.6 in of rain
- Comfortable walking shoesmost picks involve some walking
What to do in Toronto in September
September is good outdoor weather here, so these picks lean toward the open air.
Bar Raval
Spanish pintxos and cocktail bar with sculpted wood interiors on College Street.
Why now September scores 84/100 for comfort, good conditions for being outside.
CN Tower
553-metre tower with a glass floor, revolving restaurant and the EdgeWalk ledge.
Carousel Bakery
St. Lawrence Market stall that made the peameal bacon sandwich famous.
Pai Northern Thai Kitchen
Lively basement restaurant for khao soi and northern Thai curries.
Distillery District
Pedestrian Victorian industrial district of galleries, cafés and shops.
Nearby in September
- Niagara Falls & Niagara-on-the-Lake in September~36 mi · highs 73°F, 3.2 in rain · 2°C (3°F) warmer by day, wetter
- Prince Edward County in September~109 mi · highs 71°F, 2.6 in rain · similar daytime temperatures, about as wet
- Seneca Lake in September~133 mi · highs 75°F, 3.6 in rain · 3°C (5°F) warmer by day, wetter
- Keuka Lake in September~135 mi · highs 75°F, 3.8 in rain · 3°C (5°F) warmer by day, wetter
NASA POWER 2001–2025 monthly averages on a ~50 km grid. Comfort scores weigh temperature, rain, humidity and cloud: see how we score each month. Check a forecast before you go.
Toronto in September: quick answers
Is September a good time to visit Toronto?
Yes. On the climate data it's one of the best months, scoring 84/100. Expect highs of 70°F (21°C) and 2.6 in (66 mm) of rain. September is inside the May – Oct window our Toronto, Niagara & Prince Edward County route recommends.
How hot is Toronto in September?
Average highs are 70°F (21°C) and average lows 60°F (15°C), making it the 3rd-warmest month by daytime highs.
Does it rain a lot in Toronto in September?
Some: about 2.6 in (66 mm) of rain falls across September on average, the 6th-wettest month of the year. The annual total is about 30.5 in (774 mm).
What should I pack for Toronto in September?
Bring light, breathable clothes (70°F afternoons), packable rain jacket or umbrella (about 2.6 in of rain) and comfortable walking shoes (most picks involve some walking).
Routes in season in September
- Toronto, Niagara & Prince Edward County May – Oct
Planning Toronto in September?
Bring the crew into one shared trip: vote on dates, build the day-by-day plan, split costs and share one packing list.