September Weather in Sherbrooke, Canada

Last updated: June 18, 2025

In September, the average temperature in Sherbrooke, Canada hovers around 15°C (59°F). Be prepared for some temperature swings, with a minimum of -3°C (26°F) and a maximum soaring to 30°C (87°F). During this month, expect about 78 mm (3.1 in) of precipitation spread over 10 days, and with an average humidity of 77%, it’s a time to embrace both the warmth and occasional rain!

September Temperature in Sherbrooke

In September in Sherbrooke, the average temperature is 15°C (59°F). Maximum temperatures can reach 30°C (87°F) and minimum temperatures can be as low as -3°C (26°F). This variation makes it essential to pack layers for your trip, ensuring you're prepared for both warm days and cooler nights.

September Weather in Sherbrooke: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Sherbrooke, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Sherbrooke, September typically has an average temperature of 15°C (59°F), with highs reaching up to 30°C (87°F) and lows dropping to around -3°C (26°F).
JanFebMarAprMayJunJulAugSepOctNovDec171928415463686659483323
Data source: Temperature data for Sherbrooke 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 Sherbrooke

In Sherbrooke in September, the precipitation amount is 78 mm (3.1 in) over the course of 10 days.

September Precipitation Trends in Sherbrooke

The chart displays monthly precipitation patterns in Sherbrooke, 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 Sherbrooke, September typically receives around 78 mm (3.1 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec8682821151051301201237813811583
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Sherbrooke

In Sherbrooke in September, humidity is 77%. With an average temperature of 15°C (59°F), this humidity feels like a warm blanket enveloping you, making it essential to stay hydrated and choose light, breathable clothing for comfortable travel.

September Average Humidity in Sherbrooke

This chart illustrates the average monthly humidity levels in Sherbrooke, 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 Sherbrooke is approximately 77%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec91%89%85%84%78%72%75%74%77%85%86%85%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Sherbrooke

In Sherbrooke 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 Sherbrooke.

Maximum UV Index Levels in Sherbrooke for September

The chart shows the monthly maximum UV Index (UVI) for Sherbrooke 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 Sherbrooke typically reaches 7, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec235799887532
Data source: Sherbrooke 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 Sherbrooke Compares to Other Months

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

This table compares monthly weather conditions in Sherbrooke, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-8°C (17°F)86 mm (3.4 inches)91%low
February Weather-7°C (20°F)82 mm (3.2 inches)89%moderate
March Weather-2°C (28°F)82 mm (3.2 inches)85%moderate
April Weather5°C (42°F)115 mm (4.5 inches)84%high
May Weather12°C (55°F)105 mm (4.1 inches)78%very high
June Weather17°C (63°F)130 mm (5.1 inches)72%very high
July Weather20°C (68°F)120 mm (4.7 inches)75%very high
August Weather19°C (67°F)123 mm (4.8 inches)74%very high
September Weather15°C (59°F)78 mm (3.1 inches)77%high
October Weather9°C (48°F)138 mm (5.4 inches)85%moderate
November Weather1°C (33°F)115 mm (4.5 inches)86%moderate
December Weather-5°C (23°F)83 mm (3.3 inches)85%low

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