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September Weather in Shawinigan, Canada

Last updated: June 18, 2025

In Shawinigan, Canada, the average temperature in September is a pleasant 15°C (59°F). Expect a wide temperature range, with minimums dipping to 0°C (32°F) and maximums soaring up to 31°C (88°F). This month also sees an average precipitation of 73 mm (2.9 in) spread across 9 days, complemented by an average humidity of 78%.

September Temperature in Shawinigan

In September in Shawinigan, the average temperature is 15°C (59°F). Maximums can reach 31°C (88°F), and minimums can be as low as 0°C (32°F). Pack accordingly to enjoy a range of weather while exploring the diverse attractions of Shawinigan.

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

The chart illustrates September temperature patterns in Shawinigan, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Shawinigan, September typically has an average temperature of 15°C (59°F), with highs reaching up to 31°C (88°F) and lows dropping to around 0°C (32°F).
JanFebMarAprMayJunJulAugSepOctNovDec131626395564706859473119
Data source: Temperature data for Shawinigan 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 Shawinigan

In Shawinigan in September, the precipitation amount is 73 mm (2.9 in), occurring over the course of 9 days.

September Precipitation Trends in Shawinigan

The chart displays monthly precipitation patterns in Shawinigan, 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 Shawinigan, September typically receives around 73 mm (2.9 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec8180871159210386947312011594
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Shawinigan

In Shawinigan in September, humidity is 78%. With an average temperature of 15°C (59°F), this humidity feels like a warm, enveloping blanket that clings to your skin, making outdoor activities a bit more tiring and requiring frequent breaks for hydration as you explore the area.

September Average Humidity in Shawinigan

This chart illustrates the average monthly humidity levels in Shawinigan, 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 Shawinigan is approximately 78%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec95%94%90%86%78%71%79%78%78%87%90%93%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Shawinigan

In Shawinigan 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 Shawinigan.

Maximum UV Index Levels in Shawinigan for September

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

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

This table compares monthly weather conditions in Shawinigan, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-10°C (14°F)80 mm (3.2 inches)95%low
February Weather-9°C (16°F)80 mm (3.2 inches)94%moderate
March Weather-4°C (26°F)87 mm (3.4 inches)90%moderate
April Weather4°C (40°F)115 mm (4.5 inches)86%high
May Weather13°C (55°F)92 mm (3.6 inches)77%very high
June Weather18°C (64°F)103 mm (4.0 inches)71%very high
July Weather21°C (70°F)86 mm (3.4 inches)79%very high
August Weather20°C (68°F)94 mm (3.7 inches)78%very high
September Weather15°C (59°F)73 mm (2.9 inches)78%high
October Weather8°C (47°F)120 mm (4.7 inches)87%moderate
November Weather0°C (32°F)115 mm (4.5 inches)90%moderate
December Weather-7°C (19°F)94 mm (3.7 inches)93%low

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