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September Weather in Rouyn-Noranda, Canada

Last updated: June 18, 2025

In September, the average temperature in Rouyn-Noranda, Canada hovers around 12°C (55°F). It can range from a chilly 0°C (32°F) to a warm 30°C (85°F), making it a month of diverse weather. Expect 101 mm (4.0 in) of precipitation spread over 13 days, and prepare for a humid atmosphere with an average humidity of 86%.

September Temperature in Rouyn-Noranda

In September in Rouyn-Noranda, the average temperature is 12°C (55°F). Maximums can reach 30°C (85°F), and minimums can be as low as 0°C (32°F). This diverse range in temperatures makes Rouyn-Noranda an ideal destination for travelers looking to experience both warm and cool conditions.

September Weather in Rouyn-Noranda: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Rouyn-Noranda, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Rouyn-Noranda, September typically has an average temperature of 12°C (55°F), with highs reaching up to 30°C (85°F) and lows dropping to around 0°C (32°F).
JanFebMarAprMayJunJulAugSepOctNovDec7919334860666354422613
Data source: Temperature data for Rouyn-Noranda 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 Rouyn-Noranda

In Rouyn-Noranda in September, the precipitation amount is 101 mm (4.0 in) over the course of 13 days.

September Precipitation Trends in Rouyn-Noranda

The chart displays monthly precipitation patterns in Rouyn-Noranda, 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 Rouyn-Noranda, September typically receives around 101 mm (4.0 inches) of precipitation spread over approximately 13 days.
JanFebMarAprMayJunJulAugSepOctNovDec45575276908893951011328469
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Rouyn-Noranda

In Rouyn-Noranda in September humidity is 86%. With an average temperature of 12°C (55°F), this humidity feels like a damp chill that clings to your skin, making it essential to dress in layers while traveling.

September Average Humidity in Rouyn-Noranda

This chart illustrates the average monthly humidity levels in Rouyn-Noranda, 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 Rouyn-Noranda is approximately 86%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec97%96%94%89%79%76%82%85%86%90%91%97%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Rouyn-Noranda

In Rouyn-Noranda 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 Rouyn-Noranda, you can refer to this Hourly UV Index in Rouyn-Noranda.

Maximum UV Index Levels in Rouyn-Noranda for September

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

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

This table compares monthly weather conditions in Rouyn-Noranda, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-14°C (7°F)45 mm (1.8 inches)97%low
February Weather-13°C (9°F)57 mm (2.2 inches)96%moderate
March Weather-7°C (20°F)52 mm (2.1 inches)93%moderate
April Weather1°C (34°F)76 mm (3.0 inches)89%high
May Weather9°C (49°F)90 mm (3.6 inches)79%very high
June Weather15°C (60°F)88 mm (3.5 inches)76%very high
July Weather19°C (67°F)93 mm (3.7 inches)82%very high
August Weather17°C (63°F)95 mm (3.7 inches)85%very high
September Weather12°C (55°F)101 mm (4.0 inches)86%high
October Weather6°C (42°F)132 mm (5.2 inches)90%moderate
November Weather-3°C (26°F)84 mm (3.3 inches)91%low
December Weather-11°C (13°F)68 mm (2.7 inches)96%low

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