Toronto · Canada · 1995–2024 averages
Toronto weather, month by month. September is the pick.
Thirty years of averages for Toronto, Canada — how hot it really feels, when the rain arrives, and what the air is like. September comes out on top; December is the one to skip.
The year at a glance
Tap a month for its full breakdown.
September
bestscore 81.4/100Mild, sticky and dryish, with moderate air.
- Feels like
- 21°
- mild
- Real temp
- 22°
- mild
- Humidity
- 73%
- sticky
- Rain
- 70mm
- dryish
- Cloud cover
- 51%
- bright
- Air quality
- 52
- moderate
- Daylight
- 12.5h
- even
Month by month, metric by metric
Each strip covers the same twelve months, so you can see where the rain lands and how the air shifts with it.
Feels like
peaks at 27° in July
Real temp
-1–26° in the shade across the year
Humidity
69% at its driest, 75% at its most oppressive
Rain
83mm in June, 54mm in February
Cloud cover
49% at its clearest, 77% at its greyest
Air quality
worst in June, cleanest in December
Daylight
9h to 15.4h of daylight across the year
Toronto's air changes sharply through the year
The air is at its worst in June at 82 AQI (moderate), and at its cleanest in December at 38 (clean). It tracks the seasons closely.
Every month in full
All twelve months, all seven measures.
| Month | Feels like | Real temp | Humidity | Rain | Cloud cover | Air quality | Daylight |
|---|---|---|---|---|---|---|---|
| January | -5° freezing | -1° freezing | 73% sticky | 63mm dryish | 75% grey | 40 clean | 9.4h short |
| February | -5° freezing | 0° freezing | 71% sticky | 54mm dryish | 67% mixed | 47 clean | 10.5h shortish |
| March | 0° freezing | 4° freezing | 69% sticky | 58mm dryish | 64% mixed | 52 moderate | 12h even |
| April | 7° cold | 10° cold | 69% sticky | 81mm some rain | 62% mixed | 60 moderate | 13.5h even |
| May | 15° cool | 17° cool | 71% sticky | 72mm dryish | 60% mixed | 73 moderate | 14.7h long days |
| June | 23° mild | 22° mild | 73% sticky | 83mm some rain | 56% mixed | 82 moderate | 15.4h long days |
| July | 27° mild | 26° mild | 71% sticky | 74mm dryish | 49% bright | 74 moderate | 15.1h long days |
| August | 26° mild | 25° mild | 72% sticky | 64mm dryish | 49% bright | 60 moderate | 13.9h even |
| September | 21° mild | 22° mild | 73% sticky | 70mm dryish | 51% bright | 52 moderate | 12.5h even |
| October | 12° cold | 15° cool | 73% sticky | 77mm some rain | 61% mixed | 45 clean | 11h shortish |
| November | 4° freezing | 8° cold | 74% sticky | 64mm dryish | 69% mixed | 39 clean | 9.7h short |
| December | -2° freezing | 2° freezing | 75% sweaty | 66mm dryish | 77% grey | 38 clean | 9h short |
Toronto weather questions
- What is the best time to visit Toronto?
- September scores best across temperature, rain, humidity and air quality — 21° feels-like, 70mm of rain and 73% humidity. December is the month to avoid: 66mm of rain and 38 AQI.
- How hot does Toronto get?
- July is the peak, at 27° feels-like (26° in the shade) — mild. Even in September it reaches 21°.
- When is the rainy season in Toronto?
- June is the wettest month at 83mm, and February the driest at just 54mm.
- Is air quality a problem in Toronto?
- June is the worst month at 82 AQI (moderate), and December the best at 38 (clean).
Weather normals from Open-Meteo (ERA5 reanalysis, 1995–2024) and CAMS air quality (2015–2024), licensed CC-BY-4.0. Contains modified Copernicus Climate Change Service information. These are long-run averages, not forecasts — any given year will differ.
Going in September? You won't be the only one.
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