Toronto Weather in August
Canada · Humid Continental climate · Data averaged from 2020-01-01 to 2024-12-31 (5 years)
August in Toronto sees average temperatures ranging from a low of 17.4°C (63.3°F) to a high of 25.7°C (78.3°F), with a mean of 21.6°C (70.9°F). Compared to the annual average of 9.6°C (49.3°F), this month is 12.0°C warmer than the yearly norm. Precipitation averages 71.4mm, making it approximately 3.0mm drier than the monthly average of 75.0mm. The city receives an average of 11.5 hours of sunshine per day during August, with relative humidity averaging 72.8%. Wind speeds reach an average maximum of 18.8 km/h. For travelers, this month offers a temperature experience in Toronto, with drier-than-average conditions compared to the rest of the year.
There's something about Toronto in early October that feels borrowed — the city knows winter is coming and grips autumn tightly. I walked the Distillery District one Thanksgiving weekend: 14°C, maple leaves crackling underfoot, cafés serving pumpkin everything. Winter (December-March) is when Toronto leans into its indoor culture: underground PATH system, hockey arenas, the AGO. Summer (June-August) brings the city outdoors — 25°C, patio culture, festivals on the islands. I find May the most underrated: 15°C, cherry blossoms in High Park, and locals who survived winter emerging with gratitude. Each season has its own Toronto.
August vs Adjacent Months
| Metric | July | August | September |
|---|---|---|---|
| Mean Temp | 22.1°C (71.8°F) | 21.6°C (70.9°F) | 17.9°C (64.2°F) |
| Rainfall | 90.4mm | 71.4mm | 67.1mm |
| Sunshine | 12.4 hrs | 11.5 hrs | 10.0 hrs |
| Humidity | 71.7% | 72.8% | 73.5% |
| Wind | 18.3 km/h | 18.8 km/h | 19.0 km/h |
| Rainy Days | 19.6 | 15.6 | 13.4 |
Seasonal Context
August falls in Summer in the Northern Hemisphere. Summer brings the warmest conditions of the year with the longest daylight hours. For travelers visiting Toronto in August, the data indicates favorable conditions based on the combination of temperature, precipitation, and daylight hours.
Frequently Asked Questions
What is the average temperature in Toronto in August?
The average temperature in Toronto during August ranges from 17.4°C (63.3°F) to 25.7°C (78.3°F), with a mean of 21.6°C (70.9°F).
How much does it rain in Toronto in August?
Toronto receives an average of 71.4mm of precipitation in August, spread across approximately 15.6 rainy days.
What should I pack for Toronto in August?
Based on August weather data, pack layers including light jackets and t-shirts, plus an umbrella.
Is August a good time to visit Toronto?
August is a good time to visit Toronto, with comfortable temperatures and manageable rainfall.
Other Months for Toronto
Cities with Similar August Climate (Humid Continental)
Data Source: Open-Meteo historical archive (2020-01-01 to 2024-12-31). Daily measurements aggregated into monthly climate normals. Coordinates: 43.65°, -79.38°. Timezone: America/Toronto. Last updated: 2026-07-30.