Last updated: June 18, 2025
In Montreal-Ouest, Canada, the average temperature in October hovers around 10°C (51°F). While you might experience a brisk minimum of -3°C (26°F), the weather can pleasantly peak at a warm 25°C (77°F). This month also brings about 132 mm (5.2 in) of precipitation spread across 13 days, coupled with an average humidity level of a balmy 86%. Be prepared for a mix of chilly and mild days!
In October in Montreal-Ouest, the average temperature is 10°C (51°F). The maximum can reach 25°C (77°F), and the minimum can be as low as -3°C (26°F). This variation makes it a great time to explore Montreal-Ouest, so be sure to pack layers for your trip!
In Montreal-Ouest in October, the precipitation amount is 132 mm (5.2 in) over the course of 13 days.
In Montreal-Ouest in October humidity is 86%. With an average temperature of 10°C (51°F), this humidity feels like a cool, damp blanket enveloping you, making traveling feel invigorating yet slightly uncomfortable without the right layers.
In Montreal-Ouest in October, the maximum UV index reaches 5, which corresponds to a moderate Exposure Category. Under these conditions, the estimated time to burn is approximately 30 minutes. For more details, you can check the Hourly UV Index in Montreal-Ouest.
UV Risk Categories
Weather in Montreal-Ouest varies notably across the year, with each month offering distinct climate conditions. This page compares October’s weather to other months in Montreal-Ouest, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -8°C (18°F) | 84 mm (3.3 inches) | 93% | low |
| February Weather | -7°C (20°F) | 85 mm (3.3 inches) | 92% | moderate |
| March Weather | -2°C (29°F) | 85 mm (3.3 inches) | 86% | moderate |
| April Weather | 6°C (42°F) | 120 mm (4.7 inches) | 85% | high |
| May Weather | 13°C (56°F) | 96 mm (3.8 inches) | 80% | very high |
| June Weather | 19°C (67°F) | 97 mm (3.8 inches) | 74% | very high |
| July Weather | 22°C (73°F) | 89 mm (3.5 inches) | 76% | very high |
| August Weather | 21°C (71°F) | 98 mm (3.9 inches) | 75% | very high |
| September Weather | 17°C (62°F) | 69 mm (2.7 inches) | 78% | high |
| October Weather | 10°C (51°F) | 132 mm (5.2 inches) | 86% | moderate |
| November Weather | 2°C (36°F) | 115 mm (4.5 inches) | 88% | moderate |
| December Weather | -4°C (24°F) | 89 mm (3.5 inches) | 89% | low |