Month-by-month travel weather
Montreal August weather
Montreal, Canada · August
Thunderstorms are still possible
Heat lingers, with occasional storms. Comfort depends on humidity day to day.
August averages at a glance
Average low
around 17–18°C
Average high
around 24–26°C
Average precipitation
around 80–120 mm
Precip days
about 8–11 days
What to wear in August in Montreal
Actual feel will change with wind and rain, but use the suggestions below to build a comfortable layered outfit.
- • Breathable clothing
- • Optional indoor layer
Travel tips for visiting Montreal in August
- • Pair water with electrolytes if you sweat a lot.
August weather in Montreal — FAQ
Q. Is August humid too?
A. It can be—humidity is often the main comfort variable.
Explore Montreal
These pages are connected so you can compare conditions and decide for yourself.