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September Weather in Ville-Marie, Canada

Last updated: June 18, 2025

In September, the average temperature in Ville-Marie, Canada hovers around 13°C (56°F). Expect a range with minimums dipping to 2°C (36°F) and peaks reaching up to 29°C (85°F). During this month, precipitation totals about 113 mm (4.5 in) across 12 days, while the average humidity settles at a notable 76%.

September Temperature in Ville-Marie

In September in Ville-Marie, the average temperature is 13°C (56°F). Maximum temperatures can reach 29°C (85°F), while minimums can drop as low as 2°C (36°F). This range makes it advisable for travelers to pack layers for both warm and cool conditions.

September Weather in Ville-Marie: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Ville-Marie, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Ville-Marie, September typically has an average temperature of 13°C (56°F), with highs reaching up to 29°C (85°F) and lows dropping to around 2°C (36°F).
JanFebMarAprMayJunJulAugSepOctNovDec101222354958666456453018
Data source: Temperature data for Ville-Marie generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Ville-Marie

In Ville-Marie in September, the precipitation amount is 113 mm (4.5 in) over the course of 12 days.

September Precipitation Trends in Ville-Marie

The chart displays monthly precipitation patterns in Ville-Marie, with values for each month alongside September’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how September’s conditions compare to those of other months. In Ville-Marie, September typically receives around 113 mm (4.5 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec47615586968991921131219068
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Ville-Marie

In Ville-Marie in September humidity is 76%. With an average temperature of 13°C (56°F), this humidity feels like a damp blanket enveloping you, making travel a bit uncomfortable as you navigate through the heavy, moisture-laden air.

September Average Humidity in Ville-Marie

This chart illustrates the average monthly humidity levels in Ville-Marie, with September’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In September, average humidity in Ville-Marie is approximately 76%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec96%95%89%85%74%67%71%71%76%86%90%94%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Ville-Marie

In Ville-Marie in September, the maximum UV index is 7, which corresponds to the high Exposure Category. This means that the time to burn is approximately 25 minutes. For more detailed information, you can check the Hourly UV Index in Ville-Marie.

Maximum UV Index Levels in Ville-Marie for September

The chart shows the monthly maximum UV Index (UVI) for Ville-Marie in September, 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 September, the maximum UV index in Ville-Marie typically reaches 7, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec235799887532
Data source: Ville-Marie September 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 September Weather in Ville-Marie Compares to Other Months

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

This table compares monthly weather conditions in Ville-Marie, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-12°C (11°F)47 mm (1.8 inches)96%low
February Weather-11°C (12°F)61 mm (2.4 inches)95%moderate
March Weather-5°C (22°F)55 mm (2.2 inches)89%moderate
April Weather2°C (35°F)86 mm (3.4 inches)85%high
May Weather9°C (49°F)96 mm (3.8 inches)74%very high
June Weather15°C (59°F)89 mm (3.5 inches)67%very high
July Weather19°C (66°F)91 mm (3.6 inches)71%very high
August Weather18°C (65°F)92 mm (3.6 inches)71%very high
September Weather13°C (56°F)113 mm (4.5 inches)76%high
October Weather7°C (45°F)120 mm (4.7 inches)86%moderate
November Weather-1°C (30°F)90 mm (3.5 inches)90%moderate
December Weather-8°C (18°F)68 mm (2.7 inches)94%low

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