Weather in Montréal, Quebec, Canada in August
In an average August, Montréal sees a daily high around 26°C and a low around 16°C, based on 1981–2026 of local climate records.
| Average high | 26°C |
|---|---|
| Typical high range | 22°C to 30°C |
| Average low | 16°C |
| Typical low range | 11°C to 20°C |
| Average daily precipitation | 3 mm |
August records
The most extreme August on record for each metric, across 1981–2026. For rainfall, the wettest and driest are by total August accumulation.
High
Highest
36°C
2025-08-12
Lowest
14°C
1985-08-30
Low
Highest
24°C
2021-08-12
Lowest
5°C
1986-08-29
Feels-like
Highest
49°C
1988-08-03
Lowest
1°C
1982-08-29
Humidity
Highest
22.5 g/m³
2006-08-01
Lowest
6.4 g/m³
1982-08-28
Wind
Highest
58 km/h
2011-08-28
Lowest
6 km/h
2022-08-14
Precip
Wettest
171 mm
2024
Driest
34 mm
2002
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