September Weather in Salaberry-de-Valleyfield, Canada

Last updated: June 18, 2025

In September, the average temperature in Salaberry-de-Valleyfield, Canada is a mild 17°C (62°F), with minimums dipping to 1°C (34°F) and maximums reaching up to 32°C (90°F). Expect about 67 mm (2.6 in) of precipitation spread over 8 days, contributing to an average humidity of 78%.

September Temperature in Salaberry-de-Valleyfield

In September, in Salaberry-de-Valleyfield, the average temperature is 17°C (62°F). Maximum temperatures can reach 32°C (90°F), while minimums can drop to as low as 1°C (34°F). This makes Salaberry-de-Valleyfield an ideal destination for travelers seeking a range of experiences, from warm days to cool, refreshing nights.

September Weather in Salaberry-de-Valleyfield: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Salaberry-de-Valleyfield, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Salaberry-de-Valleyfield, September typically has an average temperature of 17°C (62°F), with highs reaching up to 32°C (90°F) and lows dropping to around 1°C (34°F).
JanFebMarAprMayJunJulAugSepOctNovDec182129435766727062503525
Data source: Temperature data for Salaberry-de-Valleyfield 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 Salaberry-de-Valleyfield

In Salaberry-de-Valleyfield in September, the total precipitation amount is 67 mm (2.6 in) over the course of 8 days.

September Precipitation Trends in Salaberry-de-Valleyfield

The chart displays monthly precipitation patterns in Salaberry-de-Valleyfield, 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 Salaberry-de-Valleyfield, September typically receives around 67 mm (2.6 inches) of precipitation spread over approximately 8 days.
JanFebMarAprMayJunJulAugSepOctNovDec8585861141059597926713011085
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Salaberry-de-Valleyfield

In Salaberry-de-Valleyfield in September, humidity is 78%. With an average temperature of 17°C (62°F), this humidity feels like a warm, enveloping blanket, making travel feel a bit sticky and heavy but also refreshing, as long as you're prepared with light clothing and plenty of water.

September Average Humidity in Salaberry-de-Valleyfield

This chart illustrates the average monthly humidity levels in Salaberry-de-Valleyfield, 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 Salaberry-de-Valleyfield is approximately 78%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec93%92%86%85%80%74%76%75%78%86%89%89%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Salaberry-de-Valleyfield

In Salaberry-de-Valleyfield 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 Salaberry-de-Valleyfield.

Maximum UV Index Levels in Salaberry-de-Valleyfield for September

The chart shows the monthly maximum UV Index (UVI) for Salaberry-de-Valleyfield 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 Salaberry-de-Valleyfield typically reaches 7, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec245799987532
Data source: Salaberry-de-Valleyfield 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 Salaberry-de-Valleyfield Compares to Other Months

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

This table compares monthly weather conditions in Salaberry-de-Valleyfield, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-8°C (19°F)85 mm (3.3 inches)93%low
February Weather-6°C (21°F)85 mm (3.3 inches)92%moderate
March Weather-2°C (29°F)86 mm (3.4 inches)86%moderate
April Weather6°C (43°F)114 mm (4.5 inches)85%high
May Weather14°C (57°F)105 mm (4.1 inches)80%very high
June Weather19°C (67°F)95 mm (3.7 inches)74%very high
July Weather22°C (72°F)97 mm (3.8 inches)76%very high
August Weather21°C (70°F)92 mm (3.6 inches)75%very high
September Weather17°C (62°F)67 mm (2.6 inches)78%high
October Weather10°C (50°F)130 mm (5.1 inches)86%moderate
November Weather2°C (35°F)110 mm (4.3 inches)88%moderate
December Weather-4°C (25°F)85 mm (3.3 inches)89%low

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