Montreal Weather in October
Canada · Humid Continental climate · Data averaged from 2020-01-01 to 2024-12-31 (5 years)
October in Montreal sees average temperatures ranging from a low of 7.3°C (45.1°F) to a high of 14.9°C (58.8°F), with a mean of 10.9°C (51.6°F). Compared to the annual average of 8.1°C (46.6°F), this month is 2.8°C warmer than the yearly norm. Precipitation averages 102.5mm, making it approximately 7.0mm wetter than the monthly average of 95.0mm. The city receives an average of 7.0 hours of sunshine per day during October, with relative humidity averaging 75.8%. Wind speeds reach an average maximum of 19.1 km/h. Snowfall averages 0.6cm during October, which can affect travel plans and outdoor activities. For travelers, this month offers a temperature experience in Montreal, with wetter-than-average conditions compared to the rest of the year.
Montreal's climate offers four distinct seasons with dramatic temperature swings. I visited during the summer festival season and found the city alive with outdoor energy. The data shows that the best time to visit is May to September, when temperatures are warm and the city's famous festivals are in full swing. The winters are cold and snowy, but the city's underground city and indoor culture provide warm alternatives.
October vs Adjacent Months
| Metric | September | October | November |
|---|---|---|---|
| Mean Temp | 16.9°C (62.4°F) | 10.9°C (51.6°F) | 3.7°C (38.7°F) |
| Rainfall | 79.8mm | 102.5mm | 70.0mm |
| Sunshine | 9.3 hrs | 7.0 hrs | 5.7 hrs |
| Humidity | 75.5% | 75.8% | 73.3% |
| Wind | 17.4 km/h | 19.1 km/h | 20.2 km/h |
| Rainy Days | 12.0 | 17.4 | 12.6 |
| Snowfall | 0.0 cm | 0.6 cm | 8.8 cm |
Seasonal Context
October falls in Autumn in the Northern Hemisphere. Autumn sees temperatures gradually cooling from summer highs. For travelers visiting Montreal in October, the data indicates mixed conditions based on the combination of temperature, precipitation, and daylight hours.
Frequently Asked Questions
What is the average temperature in Montreal in October?
The average temperature in Montreal during October ranges from 7.3°C (45.1°F) to 14.9°C (58.8°F), with a mean of 10.9°C (51.6°F).
How much does it rain in Montreal in October?
Montreal receives an average of 102.5mm of precipitation in October, spread across approximately 17.4 rainy days.
What should I pack for Montreal in October?
Based on October weather data, pack warm layers, a medium jacket, and waterproof outerwear. Rain gear is essential — this month averages 102.5mm of precipitation.
Is October a good time to visit Montreal?
October is a cooler month, suitable for travelers who prefer mild weather and fewer crowds. Pack warm layers and enjoy indoor attractions.
Other Months for Montreal
Cities with Similar October Climate (Humid Continental)
Data Source: Open-Meteo historical archive (2020-01-01 to 2024-12-31). Daily measurements aggregated into monthly climate normals. Coordinates: 45.5°, -73.57°. Timezone: America/Montreal. Last updated: 2026-07-30.