Planning a trip to Toronto in September? You are in luck! The weather is generally good, with an average maximum temperature of +70°F and approximately 11 sunny days. Just be prepared for some rain, as there are usually around 7 rainy days and 82 mm of precipitation. Expect good weather and pack accordingly to enjoy the outdoors. Search flightsin one click on Avionero.
Average weather
☀️
+70°F
Avg. max. temperature
+37°F
Min.
+90°F
Max.
82 mm
Total precipitation
73%
Avg. humidity
3 m/s
Avg. wind
11 ☀️
Sunny Days
12 ⛅️
Cloudy
7 🌦
Rainy
Our opinion: Toronto has good weather in September.
Average temperature in Toronto in September
Here are the expected maximum, average and minimum temperatures in Toronto for September based on the historical data.
Last Year
Historical Data
The temperature in September is +72°F on average, with a range between a maximum of +82°F during the day and a minimum of +43°F at night.
The average maximum temperature goes down 32% by the end of the month, compared with the beginning of the month, from +75°F to +63°F.
Is Toronto warm or cold in September?
Toronto is typically mild in September.
Maximum temperatures go down compared to the previous month from +77°F to +70°F. The minimum temperature also goes down from +64°F to +57°F.
Pack a light jacket as it will be warm in the day and cool in the evenings.
Take a look at how September is compared to other months in Toronto:
Climate in Toronto in September
Toronto weather looks like this, on average, in September and the surrounding months.
August
September
October
Avg. temperature
+77°F
+70°F
+57°F
Min. temperature
+48°F
+37°F
+27°F
Max. temperature
+95°F
+90°F
+86°F
Rainfall
67 mm
82 mm
92 mm
Wind
3 m/s
3 m/s
4 m/s
Humidity
72%
73%
74%
Air pressure
1014 HPa
1016 HPa
1015 HPa
Sunny days
12
11
7
Cloudy days
13
12
16
Rainy days
6
7
8
Snowy days
0
0
0
September weather is still as good as in August.It’s getting colder in September. From +77°F in the day, the average maximum temperature lowers to +70°F.Prepare for more rain. Average rainfall goes from 67 mm to 82 mm.Humidity rises from 72% to 73%.The average wind speed doesn’t change much during September, staying around 3 m/s.The days becoming less sunny, going from 12 sunny days in August to 11 in September.
Next month (October) brings a further decline in the weather.
Wind speed in Toronto in September based on historical data.
Last Year
Historical Data
The average wind speed is 5 m/s getting up to 9 m/s which is a medium breeze. You can feel it, especially getting out of the water.
The average wind speed in Toronto is gradually decreasing during September, going from 5 m/s to 2 m/s over the course of the month.
Rain
Amount of rainfall in mm during September in Toronto based on historical data.
Last Year
Historical Data
Typically, there is a 43% chance of rain on an average day in September, with total rainfall of approximately 88 mm. The maximum amount of rainfall per day is around 34 mm, which is moderate rain.September is a pretty wet month with over 13 rainy days, so don’t forget to pack an umbrella, raincoat, and a pair of wellies.
September is one of the rainiest months in Toronto, here is a comparison with other months, total mm:
Toronto wettest month is October, where a typical day has a 26% chance of precipitation and 92 mm of rainfall per day. February, on the other hand, is the driest month with a mere 7% chance of precipitation and 24 mm of rainfall per day.
How was the weather last September in Toronto?
This is the weather in Toronto in September 2023:
1 September
☀️
+75°F
2 September
☀️
+80°F
3 September
☀️
+83°F
4 September
🌧️
+79°F
5 September
🌧️
+69°F
6 September
☀️
+73°F
7 September
☁️
+74°F
8 September
☀️
+78°F
9 September
☀️
+79°F
10 September
☀️
+79°F
11 September
☁️
+73°F
12 September
🌧️
+74°F
13 September
🌧️
+71°F
14 September
☀️
+75°F
15 September
☀️
+65°F
16 September
☀️
+71°F
17 September
☁️
+73°F
18 September
☁️
+76°F
19 September
☀️
+78°F
20 September
☀️
+78°F
21 September
☀️
+81°F
22 September
☁️
+76°F
23 September
☀️
+60°F
24 September
☀️
+64°F
25 September
🌧️
+63°F
26 September
☁️
+62°F
27 September
☁️
+60°F
28 September
☁️
+56°F
29 September
☁️
+61°F
30 September
☀️
+62°F
In September 2023 Toronto had 16 sunny days, 9 cloudy days, and 4 rainy days. The average maximum temperature was +72°F, with an absolute maximum of +82°F and a minimum of +55°F. The average humidity was 75%, with a maximum of 96% and a minimum of 42%. The average wind speed was 5 m/s, with a maximum of 13 m/s and a minimum of 0 m/s.
Are you planning a trip in September?
Climate Change Over the Years
This is how Toronto climate has changed over the last 43 years.
The climate in Toronto in September has not changed that much over the last 43 years.
The average temperature was the lowest in 1981 (+68°F) and the highest in 2002 (+80°F). The driest year was 1998 with only 22 mm of rainfall, and the wettest year was 2021 with 296 mm.
FAQ
Frequently asked questions about the weather in Toronto in September:
Is September a good time to visit Toronto?
September is a really good time to go to Toronto. The weather is nice so plan your packing around outdoor activities and exploring. Check out other good time to visit Toronto.
Can you sunbathe in Toronto in September?
September has mild temperatures in Toronto. Not ideal for sunbathing, but still good for daytime outdoor activities, but plan for cool evenings. Pack a light jacket and shorts!
Is Toronto rainy in September?
Toronto is often rainy in September. You may get a bit damp when outside, so pack an umbrella, and maybe even a raincoat.
Is it sunny in Toronto in September?
The amount of sunny days in Toronto during September varies; prepare for a mix of clouds and sun.
For this page, we’ve looked at the typical weather in Toronto, based on historical hourly weather data from January 1, 1979, to December 31, 2022.
For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.