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September Weather in Saint-Mathieu-de-Rioux, Canada

Last updated: June 18, 2025

In September, the average temperature in Saint-Mathieu-de-Rioux, Canada is a pleasant 11°C (53°F). You can expect temperatures to range from a cool 4°C (39°F) to a warm 20°C (68°F). Be prepared for 90 mm (3.5 in) of precipitation over 12 days, adding to the region's 85% average humidity.

September Temperature in Saint-Mathieu-de-Rioux

In September in Saint-Mathieu-de-Rioux, the average temperature is 11°C (53°F), with maximums reaching up to 20°C (68°F) and minimums dropping as low as 4°C (39°F). This mild climate makes it a great time to explore and enjoy outdoor activities.

September Weather in Saint-Mathieu-de-Rioux: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Saint-Mathieu-de-Rioux, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Saint-Mathieu-de-Rioux, September typically has an average temperature of 11°C (53°F), with highs reaching up to 20°C (68°F) and lows dropping to around 4°C (39°F).
JanFebMarAprMayJunJulAugSepOctNovDec151624344454595953443121
Data source: Temperature data for Saint-Mathieu-de-Rioux 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-Mathieu-de-Rioux

In Saint-Mathieu-de-Rioux in September, the precipitation amount is 90 mm (3.5 in) spread over 12 days.

September Precipitation Trends in Saint-Mathieu-de-Rioux

The chart displays monthly precipitation patterns in Saint-Mathieu-de-Rioux, 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-Mathieu-de-Rioux, September typically receives around 90 mm (3.5 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec826680113917259619014211190
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Saint-Mathieu-de-Rioux

In Saint-Mathieu-de-Rioux in September humidity is 85%. With an average temperature of 11°C (53°F), this humidity feels like a thick blanket wrapping around you, making every step feel heavier and creating a dampness in the air that can be exhausting for travelers.

September Average Humidity in Saint-Mathieu-de-Rioux

This chart illustrates the average monthly humidity levels in Saint-Mathieu-de-Rioux, 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-Mathieu-de-Rioux is approximately 85%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec94%93%91%89%82%74%80%83%85%88%89%94%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Saint-Mathieu-de-Rioux

In Saint-Mathieu-de-Rioux 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-Mathieu-de-Rioux, you can refer to this Hourly UV Index in Saint-Mathieu-de-Rioux.

Maximum UV Index Levels in Saint-Mathieu-de-Rioux for September

The chart shows the monthly maximum UV Index (UVI) for Saint-Mathieu-de-Rioux 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-Mathieu-de-Rioux typically reaches 6, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec235789886421
Data source: Saint-Mathieu-de-Rioux 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-Mathieu-de-Rioux Compares to Other Months

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

This table compares monthly weather conditions in Saint-Mathieu-de-Rioux, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-9°C (15°F)82 mm (3.2 inches)94%low
February Weather-9°C (16°F)66 mm (2.6 inches)93%moderate
March Weather-4°C (24°F)80 mm (3.1 inches)91%moderate
April Weather1°C (34°F)112 mm (4.4 inches)89%high
May Weather7°C (44°F)90 mm (3.6 inches)82%very high
June Weather12°C (55°F)72 mm (2.8 inches)74%very high
July Weather15°C (60°F)59 mm (2.3 inches)80%very high
August Weather15°C (59°F)61 mm (2.4 inches)83%very high
September Weather11°C (53°F)90 mm (3.5 inches)85%high
October Weather7°C (44°F)142 mm (5.6 inches)88%moderate
November Weather0°C (31°F)111 mm (4.4 inches)89%low
December Weather-6°C (21°F)90 mm (3.5 inches)94%low

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