What to expect in Toronto in September
September is one of the best times to visit Toronto. Expect 21° / 13°, the biggest crowds of the year and prices close to the yearly average.
Toronto weather in September
Typical conditions in Toronto during September, based on long-run climate normals rather than any single year. Treat it as a planning guide, not a forecast.
| Average high | 21°C 70°F |
|---|---|
| Average low | 13°C 55°F |
| Rainfall | Moderate 49/100 |
| Total rainfall | 83 mm3.3 in |
| Rainy days | 11 |
| Daylight | 12 h 32 min |
| How it feels | Mild — layers weather |
Average highs sit around 21°C with lows near 13°C. Rainfall is moderate; the odd shower is likely.
Crowds & demand
Crowd levels are High for Toronto — the biggest crowds of the year.
Prices & value
This month counts as shoulder season: prices close to the yearly average.
What to pack
Layers you can shed: 21°C by day and about 13°C after dark is a two-jacket kind of month.
What it costs
Costs in September sit around the yearly average for Toronto — neither a bargain nor a squeeze. Booking a few weeks out is usually enough. Compared with the most expensive month of the year, you are looking at roughly 16% less.
Who this month suits
- Travellers who want the most reliable weather
- Anyone travelling on a budget
- Visitors who want to catch a festival
Events & what’s on
Look out for Canadian National Exhibition, Toronto International Film Festival while you’re there.
- Canadian National Exhibition — An annual fair at Exhibition Place that runs from the second half of August to Labour Day, the first Monday in September.
- Toronto International Film Festival — The festival starts on the Thursday after Labour Day and runs for eleven days downtown.
Toronto in September compared with nearby months
If your dates are flexible by a few weeks, this is what shifting them actually buys you.
| Month | Temp | Crowds | Price | Score |
|---|---|---|---|---|
| July | 26° / 18° | High | $$$ | 45 |
| August | 25° / 17° | High | $$$ | 45 |
| September · This month | 21° / 13° | High | $$ | 50 |
| October | 14° / 7° | Moderate | $$ | 50 |
| November | 7° / 2° | Low | $ | 51 |
These months score higher for Toronto on the same blend of weather, crowds and price. Same destination, better odds.
Or go somewhere else in September
If the destination is negotiable but the month is not, these places are at their best in September.
Figures are climate normals and modelled estimates — a planning guide, not a forecast. We separate fact, estimate and recommendation. Updated October 2026
