Toronto weather in September
Toronto in September averages 17°C (63°F), 67 mm of rain and 7.2 hours of sun a day.
Of the twelve months in Toronto, September is the fourth warmest and the fifth sunniest.
- Average temp
- 17°C (63°F)
14–21°C · 57–69°F
- Rainfall
- 67 mm
Showers likely
- Sunshine
- 7.2 h
hours per day
- Wind
- 14 km/h
What is Toronto like in September?
Daytime
Days are mild.
Rain
Some rain is likely; pack for showers.
Evening
Evenings are cooler. A layer helps after sunset.
What should I pack for Toronto in September?
A light rain jacket
About 67 mm falls this month — showers rather than washouts.
A layer for the evening
Evenings cool off noticeably once the sun is down.
September compared with August and October
September in Toronto is 3.8°C cooler than August and about as wet as it, which averages 21°C (70°F).
September in Toronto is 6.8°C warmer than October and about as wet as it, which averages 10°C (51°F).
Daylight in Toronto in September
On 15 September the sun is up for 12 hours 29 minutes in Toronto, rising about 06:57 and setting about 19:26 local time.
September ends 1 hour 25 minutes shorter than it begins, so the last week of the month is a different length of day from the first.
That is 2 hours 57 minutes short of June, the longest-lit month here.
Where to stay in Toronto
Dates are a starting point for September.
Travel guides for Toronto
What to read before you book.
Toronto weather by month
TemperatureRainfall
How September compares with the rest of the year
September is highlighted. Every other month links to its own page.
| Month | Average | Rainfall |
|---|---|---|
| January | -4°C / 24°F | 61 mm |
| February | -3°C / 26°F | 50 mm |
| March | 1°C / 33°F | 50 mm |
| April | 7°C / 44°F | 81 mm |
| May | 12°C / 54°F | 77 mm |
| June | 18°C / 64°F | 78 mm |
| July | 21°C / 70°F | 72 mm |
| August | 21°C / 70°F | 69 mm |
| September | 17°C / 63°F | 67 mm |
| October | 10°C / 51°F | 66 mm |
| November | 5°C / 40°F | 67 mm |
| December | 0°C / 31°F | 57 mm |
Check another month
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FAQs about Toronto in September
September climate averages for Toronto, 1991–2020.
Toronto averages 17°C (63°F) in September, ranging from about 14°C (57°F) at night to 21°C (69°F) in the afternoon. That is a 1991–2020 average, so an individual week can run either side of it.
Some. About 67 mm falls across September, enough to need a light jacket but not enough to reshape a trip.
Yes. September averages 17°C (63°F) against 10°C (51°F) in October — 6.8°C warmer.
September is 3.8°C cooler than August, and about as wet.
Yes. September falls inside the most comfortable stretch of the year here, May to October, on temperature and rainfall together.
About 7.2 hours of sun a day on the 1991–2020 average.
This page does not show today's weather. It is a 1991–2020 climate normal from Meteostat — a long-run average of what September is usually like, which is what you want when booking months ahead. For today or the coming week, check a live forecast.
About 12 hours 29 minutes of daylight in mid-September, against 15 hours 26 minutes in June and 8 hours 57 minutes in December.
On 15 September, sunrise is about 06:57 and sunset about 19:26 local time. Both shift across the month — the month ends 1 hour 25 minutes shorter than it starts.
