nomadseason

October Weather in Montreal, France

Last updated: August 23, 2025

In October, the average temperature in Montreal, France hovers around 14°C (58°F). Expect a comfortable climate where temperatures can dip to a chilly 1°C (34°F) or rise to a pleasant 28°C (83°F). However, be prepared for some rain, as 87 mm (3.4 in) of precipitation is expected over 10 days, with an average humidity level of 82%. This creates a uniquely refreshing atmosphere throughout the month!

October Temperature in Montreal

In October in Montreal, the average temperature is 14°C (58°F). The maximum can reach 28°C (83°F), while the minimum can drop as low as 1°C (34°F). It's an ideal time to explore Montreal with a comfortable climate, but be prepared for varying temperatures throughout the day.

October Weather in Montreal: Daily Temperature Highs, Lows, and Averages

The chart illustrates October temperature patterns in Montreal, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Montreal, October typically has an average temperature of 14°C (58°F), with highs reaching up to 28°C (83°F) and lows dropping to around 1°C (34°F).
JanFebMarAprMayJunJulAugSepOctNovDec414649536068727266574845
Data source: Temperature data for Montreal generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

October Precipitation in Montreal

In Montreal in October, the precipitation amount is 87 mm (3.4 in) over the course of 10 days.

October Precipitation Trends in Montreal

The chart displays monthly precipitation patterns in Montreal, with values for each month alongside October’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how October’s conditions compare to those of other months. In Montreal, October typically receives around 87 mm (3.4 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec8370786198544527558783121
Data source: Precipitation data for October generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

October Humidity in Montreal

In Montreal in October, humidity is 82%. With an average temperature of 14°C (58°F), this humidity feels like a heavy blanket wrapping around you, making travel uncomfortable and sticky.

October Average Humidity in Montreal

This chart illustrates the average monthly humidity levels in Montreal, with October’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In October, average humidity in Montreal is approximately 82%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec87%83%80%77%75%74%72%70%73%82%87%88%
Data source: Humidity data for October generated using information from the Copernicus Climate Change Service.

October UV Index in Montreal

In Montreal 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.

Maximum UV Index Levels in Montreal for October

The chart shows the monthly maximum UV Index (UVI) for Montreal in October, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In October, the maximum UV index in Montreal typically reaches 5, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec24679101097532
Data source: Montreal October UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

How October Weather in Montreal Compares to Other Months

Weather in Montreal varies notably across the year, with each month offering distinct climate conditions. This page compares October’s weather to other months in Montreal, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Montreal, showing how October’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather5°C (41°F)83 mm (3.3 inches)87%low
February Weather8°C (46°F)70 mm (2.8 inches)83%moderate
March Weather9°C (49°F)78 mm (3.1 inches)80%high
April Weather12°C (53°F)61 mm (2.4 inches)77%high
May Weather15°C (60°F)98 mm (3.8 inches)75%very high
June Weather20°C (68°F)54 mm (2.1 inches)74%very high
July Weather22°C (72°F)45 mm (1.8 inches)72%very high
August Weather22°C (72°F)27 mm (1.0 inches)70%very high
September Weather19°C (66°F)55 mm (2.2 inches)73%high
October Weather14°C (58°F)87 mm (3.4 inches)82%moderate
November Weather9°C (49°F)82 mm (3.2 inches)87%moderate
December Weather7°C (45°F)121 mm (4.8 inches)88%low

Compare Montreal's Climate with Cities Worldwide