Toronto Weather in September – Average Temperature and Rainfall

High
22.2°
Low
14.4°
Rainfall
57 mm
Rainy season
9d
max
31.9°
min
4.9°

September

Early
23.1°
19.9 mm
Mid
22.5°
10.3 mm
Late
20.9°
26.7 mm

Summary

The climate figures for Toronto are averaged from 2016–2025 observations (10 years). Annual rainfall averages about 891 mm.

The rainy season runs –. The wettest month is April with 96.9 mm across 13 rain days; the driest is September at just 56.9 mm.

The hottest month is July (average high 26.6°C) and the coolest is January (-0.1°C).

The most comfortable time to visit Toronto is September — less rain and milder heat.

Monthly averages

Common questions

Will it rain in Toronto today?
No. The chance of rain today is only about 0%.
How hot is it in Toronto today?
Between 9°C and 15°C, with a felt maximum of 13°C.
What is the weather in Toronto tomorrow?
Tomorrow: overcast, 7–17°C, with a 2% chance of rain.

Toronto