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October Weather in Saint-Leonard, Canada

Last updated: June 18, 2025

In October, the average temperature in Saint-Leonard, Canada hovers around 7°C (44°F), with variability ranging from a chilly -10°C (15°F) to a warm 22°C (71°F). Expect 126 mm (4.9 in) of precipitation spread over 13 days, accompanied by a high average humidity of 87%. Be prepared for a mix of weather as you explore this unique destination!

October Temperature in Saint-Leonard

In October in Saint-Leonard, the average temperature is 7°C (44°F). Maximum temperatures can reach up to 22°C (71°F), while the minimum can drop as low as -10°C (15°F). Be prepared for a wide range of weather conditions when traveling during this time.

October Weather in Saint-Leonard: Daily Temperature Highs, Lows, and Averages

The chart illustrates October temperature patterns in Saint-Leonard, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Saint-Leonard, October typically has an average temperature of 7°C (44°F), with highs reaching up to 22°C (71°F) and lows dropping to around -10°C (15°F).
JanFebMarAprMayJunJulAugSepOctNovDec131524375060656455443018
Data source: Temperature data for Saint-Leonard 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.

October Precipitation in Saint-Leonard

In Saint-Leonard in October, the precipitation amount is 126 mm (4.9 in) spread over the course of 13 days.

October Precipitation Trends in Saint-Leonard

The chart displays monthly precipitation patterns in Saint-Leonard, 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 Saint-Leonard, October typically receives around 126 mm (4.9 inches) of precipitation spread over approximately 13 days.
JanFebMarAprMayJunJulAugSepOctNovDec927576121100908984106126125110
Data source: Precipitation data for October generated using information from the Copernicus Climate Change Service.
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October Humidity in Saint-Leonard

In Saint-Leonard in October, humidity is 87%. With an average temperature of 7°C (44°F), this humidity feels like a damp chill that seeps into your bones, making outdoor activities uncomfortable and requiring travelers to layer up to stay warm and dry.

October Average Humidity in Saint-Leonard

This chart illustrates the average monthly humidity levels in Saint-Leonard, 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 Saint-Leonard is approximately 87%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec93%92%90%87%82%77%82%83%85%87%88%90%
Data source: Humidity data for October generated using information from the Copernicus Climate Change Service.

October UV Index in Saint-Leonard

In Saint-Leonard in October, the maximum UV index reaches 4, which corresponds to a moderate Exposure Category. With a time to burn of 30 minutes, it’s important to take precautions to protect your skin. You can find more details in the Hourly UV Index in Saint-Leonard for better planning.

Maximum UV Index Levels in Saint-Leonard for October

The chart shows the monthly maximum UV Index (UVI) for Saint-Leonard 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 Saint-Leonard typically reaches 4, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec2357810887432
Data source: Saint-Leonard 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 Saint-Leonard Compares to Other Months

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

This table compares monthly weather conditions in Saint-Leonard, showing how October’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-11°C (13°F)92 mm (3.6 inches)93%low
February Weather-9°C (15°F)75 mm (2.9 inches)92%moderate
March Weather-5°C (24°F)76 mm (3.0 inches)90%moderate
April Weather3°C (37°F)121 mm (4.8 inches)87%high
May Weather10°C (51°F)100 mm (3.9 inches)82%very high
June Weather15°C (60°F)90 mm (3.5 inches)77%very high
July Weather19°C (66°F)89 mm (3.5 inches)81%very high
August Weather18°C (64°F)84 mm (3.3 inches)83%very high
September Weather13°C (56°F)106 mm (4.2 inches)85%high
October Weather7°C (44°F)126 mm (4.9 inches)87%moderate
November Weather-1°C (31°F)125 mm (4.9 inches)87%moderate
December Weather-8°C (18°F)110 mm (4.3 inches)90%low

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