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September Weather in Saint-Isidore, Canada

Last updated: June 18, 2025

In Saint-Isidore, Canada, the average temperature in September hovers around 13°C (56°F). Expect a range of temperatures, with minimums dipping to 1°C (34°F) and maximums reaching up to 30°C (86°F). During this month, anticipate 116 mm (4.6 in) of precipitation spread over 12 days, leading to an average humidity of 76%.

September Temperature in Saint-Isidore

In September in Saint-Isidore, the average temperature is 13°C (56°F). The maximum can reach 30°C (86°F) and the minimum can be as low as 1°C (34°F). It's a perfect time for travelers to experience a diverse range of weather conditions, so pack accordingly!

September Weather in Saint-Isidore: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Saint-Isidore, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Saint-Isidore, September typically has an average temperature of 13°C (56°F), with highs reaching up to 30°C (86°F) and lows dropping to around 1°C (34°F).
JanFebMarAprMayJunJulAugSepOctNovDec91122355059666456452916
Data source: Temperature data for Saint-Isidore 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 Saint-Isidore

In Saint-Isidore in September, the precipitation amount is 116 mm (4.6 in) over a span of 12 days.

September Precipitation Trends in Saint-Isidore

The chart displays monthly precipitation patterns in Saint-Isidore, 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 Saint-Isidore, September typically receives around 116 mm (4.6 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec476156851019395911161258969
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Saint-Isidore

In Saint-Isidore 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 Saint-Isidore

This chart illustrates the average monthly humidity levels in Saint-Isidore, 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 Saint-Isidore 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 Saint-Isidore

In Saint-Isidore in September, the maximum UV index is 6, which corresponds to a high Exposure Category. The time to burn is approximately 25 minutes. To find the hourly UV index in Saint-Isidore, you can refer to this Hourly UV Index in Saint-Isidore.

Maximum UV Index Levels in Saint-Isidore for September

The chart shows the monthly maximum UV Index (UVI) for Saint-Isidore 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 Saint-Isidore typically reaches 6, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec235799886532
Data source: Saint-Isidore 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 Saint-Isidore Compares to Other Months

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

This table compares monthly weather conditions in Saint-Isidore, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-13°C (10°F)47 mm (1.9 inches)96%low
February Weather-12°C (11°F)61 mm (2.4 inches)95%moderate
March Weather-6°C (22°F)56 mm (2.2 inches)89%moderate
April Weather2°C (36°F)85 mm (3.4 inches)85%high
May Weather10°C (50°F)101 mm (4.0 inches)74%very high
June Weather15°C (60°F)93 mm (3.6 inches)67%very high
July Weather19°C (66°F)95 mm (3.7 inches)71%very high
August Weather18°C (64°F)91 mm (3.6 inches)71%very high
September Weather13°C (56°F)116 mm (4.6 inches)76%high
October Weather7°C (45°F)125 mm (4.9 inches)86%moderate
November Weather-2°C (29°F)89 mm (3.5 inches)90%moderate
December Weather-9°C (17°F)69 mm (2.7 inches)94%low

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