Last updated: June 18, 2025
In Montreal-Est, Canada, the average temperature in October hovers around 10°C (49°F). Visitors can expect a range from a chilly -5°C (24°F) to a delightful 26°C (79°F). With an average precipitation of 129 mm (5.1 in) spread over 12 days, it's wise to prepare for some wet spells. Notably, the average humidity sits at a sticky 86%, making for a uniquely humid experience.
In October in Montreal-Est, the average temperature is 10°C (49°F). The maximum can reach 26°C (79°F), and the minimum can be as low as -5°C (24°F). This varying climate makes it essential for travelers to pack accordingly, preparing for both warm and cold weather conditions.
In Montreal-Est in October, the total precipitation amount is 129 mm (5.1 in) over the course of 12 days.
In Montreal-Est in October, humidity is 86%. With an average temperature of 10°C (49°F), this humidity feels like a chilly blanket enveloping you, making travel somewhat uncomfortable as the dampness accentuates the cold, leaving you feeling clammy and chilled, which is a reminder to dress in layers and stay prepared for the damp air.
In Montreal-Est 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-Est.
UV Risk Categories
Weather in Montreal-Est varies notably across the year, with each month offering distinct climate conditions. This page compares October’s weather to other months in Montreal-Est, focusing on differences in temperature, rainfall, humidity, and UV levels.
| Temperature | Precipitation | Humidity | UV | |
|---|---|---|---|---|
| January Weather | -9°C (16°F) | 83 mm (3.3 inches) | 93% | low |
| February Weather | -7°C (19°F) | 82 mm (3.2 inches) | 92% | moderate |
| March Weather | -2°C (28°F) | 84 mm (3.3 inches) | 86% | moderate |
| April Weather | 6°C (43°F) | 122 mm (4.8 inches) | 85% | high |
| May Weather | 14°C (57°F) | 96 mm (3.8 inches) | 80% | very high |
| June Weather | 19°C (66°F) | 96 mm (3.8 inches) | 74% | very high |
| July Weather | 22°C (72°F) | 91 mm (3.6 inches) | 76% | very high |
| August Weather | 21°C (70°F) | 101 mm (4.0 inches) | 75% | very high |
| September Weather | 16°C (61°F) | 69 mm (2.7 inches) | 78% | high |
| October Weather | 10°C (49°F) | 129 mm (5.1 inches) | 86% | moderate |
| November Weather | 1°C (34°F) | 115 mm (4.5 inches) | 88% | moderate |
| December Weather | -5°C (22°F) | 89 mm (3.5 inches) | 89% | low |