Toronto weather in August
Temperature, rain and sunshine in August: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in August
Excellent
Best time to visit: May – September
What is the weather like in Toronto in August?
In August, Toronto is warm: daytime highs average 25 °C, and nights cool down to about 18 °C. The sun shines for around 8 hours a day. Rain falls on about 9 days, adding up to 63 mm. All in all, August is an excellent month for a holiday in Toronto.
August compared
How the weather changes from July to September. Tap a month to open it.
| JulyJul | AugustAug | SeptemberSep | |
|---|---|---|---|
| Score | 86 | 85 | 82 |
| Day | 25° | 25° | 21° |
| Night | 18° | 18° | 15° |
| Sun | 9 h | 8 h | 6 h |
| Rain days | 10 | 9 | 9 |
More details for August
- Daylight
- 14 h 3 min06:21 – 20:24
- UV index
- 8 · very highclear sky, noon (estimate)All months
- Muggy days
- 9 daysdew point 18 °C or moreAll months
- Wind
- 16 km/haverage daily peakAll months
- Cloud cover
- 49 %on averageAll months
- Hot days
- 1 day30 °C or moreAll months
- Snow days
- 0 days1 cm or more of fresh snowAll months
- Time zone
- UTC−4America/Toronto
How the score comes together
- Temperatureweight 50 %100 %
- Sunshineweight 20 %75 %
- Few rainy daysweight 30 %66 %
Each factor is rated from 0 to 100 % and weighted for the travel style “City break”.
What to pack in August
- Sunscreen
- Sunglasses & sun hat
- Rain jacket or umbrella
Toronto in August: quick answers
Is Toronto hot in August?
Warm rather than hot: in August, daytime highs in Toronto average 25 °C and nights cool to about 18 °C.
Does it rain much in Toronto in August?
Rain falls on about 9 days, adding up to 63 mm.
Toronto month by month
The whole year in TorontoAll destinations: CanadaWhere to go in August
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences