SeasonMapMontreal weather in October
Canada
October in Montreal: cool, rainy, with clean air — a good time to visit.
#6 of 12 months in Montreal · #966 of 1383 destinations to visit in October · comfort 67/100 (tier C)
Updated September 2026 · climate normals from ERA5 reanalysis
Traveller notes on Montreal in October
Other months in Montreal
When I was in Montreal in June, I never had any trouble getting a Bixi bike when and where I wanted one. (Finding a street to ride it on was a different question, between construction, Pride, and JazzFest.) In Toronto, I often find the Bike Share racks empty when I want to check one out.
Year-round notes are on Montreal's overview. Add your own note from Montreal's card on the map.
Montreal climate normals — October
| Daytime high | 14°C / 57°F | 🙂 cool |
|---|---|---|
| Nighttime low | 6°C / 43°F | |
| Feels like (high) | 12°C / 54°F | |
| Rainfall | 125 mm / 4.9 in | 🌧 rainy |
| Rainy days | 10 days | |
| Humidity | 74% | 💧 humid |
| Dew point | 4°C / 40°F | |
| Sunshine | 6.9 h/day | |
| Daylight | 10.9 h | |
| Wind | 18 km/h / 11 mph | |
| Snowfall | 0.9 cm / 0.4 in | |
| Air quality (US AQI) | 34 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Crowds in Montreal in October
How busy the place itself is — school and mass holidays, the months an editor tagged, and how sought-after the weather makes them. Never part of the comfort score.
Shoulder seasonan ordinary month(estimated)
Peak crowdsBusyShoulder seasonQuiet
Best months for Montreal's weather
Ranked by this destination's own climate comfort score across the year — a different thing from how busy it gets (see Crowds above).
Fair weatherMontreal's best weather comes in June, August and September — separate windows, not one continuous season.
Best weatherFair weatherToughest weather
What's on in Montreal in October
Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.
- Nature
Fall colour
25 Sep – 20 Oct · usuallyAutumn colourMount Royal turns in the first half of October and the Laurentians an hour north go a week earlier. Thanksgiving weekend in October is when everyone drives up to look at it.
Nearby, and something's on
Within 300 km of Montreal — a day trip or a short hop — with something on this month. Never part of the comfort score.
Where is Montreal?
Montreal in October — FAQ
- Is October a good time to visit Montreal?
- October in Montreal: cool, rainy, with clean air — a good time to visit. It ranks #6 of 12 months for Montreal on SeasonMap's comfort score (67/100).
- What is the weather like in Montreal in October?
- In October, Montreal averages a daily high of 14°C and a low of 6°C, with about 125 mm of rain over roughly 9.5 rainy days.
- What is the air quality in Montreal in October?
- Montreal has a mean US Air Quality Index of about 34 in October.
Other months in Montreal
Compare Montreal in October
Warmer or cooler than Montreal in October
Similar destinations in North America — October
Within 300 km: Mont-Tremblant's Laurentian fall colour around 18 Sep – 15 Oct, and Stowe's Mount Mansfield summer season around 25 May – 15 Oct.