Toronto weather in August
August in Toronto: warm, a little rain — one of the best months to visit.
#2 of 12 months in Toronto · #102 of 604 destinations to visit in August · comfort 89/100 (tier A)
Updated June 2026 · climate normals from ERA5 reanalysis
Toronto climate normals — August
| Daytime high | 25°C / 77°F | 🌤 warm |
|---|---|---|
| Nighttime low | 18°C / 64°F | |
| Feels like (high) | 26°C / 79°F | |
| Rainfall | 56 mm / 2.2 in | 🌦 some rain |
| Rainy days | 9 days | |
| Humidity | 75% | 💧 humid |
| Dew point | 16°C / 60°F | |
| Sunshine | 11.5 h/day | |
| Daylight | 13.9 h | |
| Wind | 17 km/h / 11 mph | |
| Air quality (US AQI) | 55 | 🙂 moderate |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Toronto in August — FAQ
- Is August a good time to visit Toronto?
- August in Toronto: warm, a little rain — one of the best months to visit. It ranks #2 of 12 months for Toronto on SeasonMap's comfort score (89/100).
- What is the weather like in Toronto in August?
- In August, Toronto averages a daily high of 24.9°C and a low of 18°C, with about 56.2 mm of rain over roughly 9.2 rainy days.
- What is the air quality in Toronto in August?
- Toronto has a mean US Air Quality Index of about 55 in August.