CA Toronto · Autumn

Toronto in September
what's the weather like?

September is a good time to visit. July is slightly better.

Open-Meteo · 10 years · 12 months compared · 43.65°N 79.38°W
22°CMax temperature
30%Rainy days
11.6hSunshine / day

Toronto weather in September

✅ Good
🌡️ Temperature min / max
15°C – 22°C
🌧 Rainy days
30% of days
☀️ Sunshine
11.6h per day on average
🌊 🌊 Season
Autumn
⭐ ⭐ Weather score
7.8/10
📅 📅 Best month
July (8.5/10)

Should you visit Toronto in September?

✅ Good

✅ Yes if: you want shoulder-season value — fewer crowds, 22°C.

❌ No if: you need maximum sunshine — some overcast days are possible.

🌧 Rain : ███░░░░░░░ 30%
🌡 Temperature : ██████░░░░ 22°C
☀️ Sunshine : ████████░░ 11.6h/d

Our take: September is a good time to visit Toronto. July remains slightly better (+0.7 pts).

Toronto in September by trip type

What to expect in September

🎯 Peak cultural season — museums and sites accessible in good weather conditions Autumn in Toronto is often underrated: 22°C, golden light and declining crowds. An interesting window. Expect rain on 30% of days — a light raincoat in the bag is recommended. A good balance between weather and crowds, even if July (8.5/10) remains theoretically better.

All months for Toronto

Month-by-month comparison

MonthMin °CMax °CRain %Precip mmSun h/dScore
🌨️ January-6°C1°C31%2.24.6h3.4/10
🌨️ February-6°C2°C34%2.37.1h4.0/10
🌫️ March-2°C5°C34%2.38.5h4.1/10
🌦️ April2°C10°C43%3.29.8h4.6/10
⛅ May8°C17°C35%2.512.4h7.1/10
🌤️ June14°C23°C35%2.813.7h8.1/10
🌤️ July18°C26°C36%2.414.0h8.5/10
🌤️ August18°C26°C32%2.312.9h8.4/10
🌤️ September15°C22°C30%1.911.6h7.8/10
⛅ October8°C15°C37%2.88.4h6.1/10
🌫️ November1°C7°C32%2.16.1h4.1/10
🌨️ December-3°C3°C41%2.54.5h2.6/10
Ideal Fair Challenging climate ◀ Current month · Source Open-Meteo · 10 years
📊 Data source Data based on 10 years of ERA5 records via Open-Meteo, with ECMWF seasonal adjustment. In September, Toronto averages 22°C, 30% rainy days and 11.6h of sunshine per day. Overall weather score: 7.8/10. See methodology →

September vs July (best month)

The best month is July (score 8.5/10). Difference:

FAQ — Toronto in September

Is September a good time to visit Toronto?
September is an excellent time to visit Toronto (score 7.8/10). With 22°C, 11.6h of sunshine and 30% rain, conditions are very favourable.
What to do in Toronto in September?
With 22°C max and 11.6h of sunshine, focus on cultural sites, museums and local gastronomy.

Find a place to stay in Toronto

Find places to stay in Toronto in September Search on Hotels.com

Activities and tours in Toronto

Guided tours, skip-the-line tickets and local experiences. Browse activities on GetYourGuide

Find a flight to Toronto

Compare flights from all airlines. Search flights

Similar destinations in September

Other top destinations in September

Compare destinations by weather

Explore or compare

📅 Live forecast — next 12 months

Real-time data with ECMWF seasonal corrections · updated daily

Try the weather app