When to go · Montreal
Montreal in September
Great month. Inside Montreal's best window: Jun–Sep (festivals, warm); late Sep–Oct for colour.
Key facts
- Verdict
- Great
- Temperature
- 21°C (70°F)70°F (21°C) / 11°C (52°F)52°F (11°C)
- average high / low
- Rain days
- 11
- Crowds
- Medium
- Canada overall
- Prices
- Medium
- Canada overall
Verdict
Inside Montreal's best window: Jun–Sep (festivals, warm); late Sep–Oct for colour.
Is another month better than September?
No other month rates higher than September for Montreal in this guide.
Weather in September
- MontrealHighs around 21 °C (70 °F), lows around 11 °C (52 °F), rain on about 11 daysHighs around 70 °F (21 °C), lows around 52 °F (11 °C), rain on about 11 days
Crowds and prices
- Crowds · Canada overall
- Medium
- Prices · Canada overall
- Medium
Canada overall: After Labour Day crowds drop; larches turn gold in the Rockies late in the month.
Compare two months
Weather, crowds and prices for any two months in Montreal, side by side.
Verdict
Sep: Great
Jun: Great
Daytime high
Sep: 21 °C (70 °F)70 °F (21 °C)
Jun: 24 °C (75 °F)75 °F (24 °C)
Night low
Sep: 11 °C (52 °F)52 °F (11 °C)
Jun: 14 °C (57 °F)57 °F (14 °C)
Rain days
Sep: 11 (better)
Jun: 12
Crowds
Sep: Medium
Jun: Medium
Prices
Sep: Medium
Jun: Medium
Festivals listed
Sep: 0
Jun: 1
September: Inside Montreal's best window: Jun–Sep (festivals, warm); late Sep–Oct for colour.
June: Inside Montreal's best window: Jun–Sep (festivals, warm); late Sep–Oct for colour.
Montreal: figures are long-term averages from this guide, not a forecast.
What to pack
- A warm layer for the evenings
- A rain jacket or umbrella and shoes that dry fast