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September Weather in Saskatoon, Canada

Last updated: June 18, 2025

In September, the average temperature in Saskatoon, Canada is a mild 12°C (53°F). However, be prepared for a range with minimums dipping to -4°C (24°F) and maximums soaring to 31°C (89°F). This month sees an average precipitation of 43 mm (1.7 in) spread over just 7 days, complemented by a relatively high humidity level of 77%.

September Temperature in Saskatoon

In September in Saskatoon, the average temperature is 12°C (53°F). Maximum temperatures can reach 31°C (89°F), while the minimum can drop as low as -4°C (24°F). Be prepared for a wide range of temperatures when traveling to Saskatoon this month.

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

The chart illustrates September temperature patterns in Saskatoon, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Saskatoon, September typically has an average temperature of 12°C (53°F), with highs reaching up to 31°C (89°F) and lows dropping to around -4°C (24°F).
JanFebMarAprMayJunJulAugSepOctNovDec7220355362666353382111
Data source: Temperature data for Saskatoon 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 Saskatoon

In Saskatoon in September, the total precipitation amount is 43 mm (1.7 in) spread over a period of 7 days.

September Precipitation Trends in Saskatoon

The chart displays monthly precipitation patterns in Saskatoon, 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 Saskatoon, September typically receives around 43 mm (1.7 inches) of precipitation spread over approximately 7 days.
JanFebMarAprMayJunJulAugSepOctNovDec181323194367633843213112
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Saskatoon

In Saskatoon in September, humidity is 77%. With an average temperature of 12°C (53°F), this humidity feels like a damp chill that can make exploration rather uncomfortable, as the moisture in the air clings to your skin and makes even a light breeze feel colder, often requiring additional layers for comfort while traveling.

September Average Humidity in Saskatoon

This chart illustrates the average monthly humidity levels in Saskatoon, 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 Saskatoon is approximately 77%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec92%95%92%82%70%64%78%81%77%82%89%95%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Saskatoon

In Saskatoon 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 Saskatoon, you can refer to this Hourly UV Index in Saskatoon.

Maximum UV Index Levels in Saskatoon for September

The chart shows the monthly maximum UV Index (UVI) for Saskatoon 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 Saskatoon typically reaches 6, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec234678876421
Data source: Saskatoon 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 Saskatoon Compares to Other Months

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

This table compares monthly weather conditions in Saskatoon, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-14°C (7°F)18 mm (0.7 inches)92%low
February Weather-17°C (2°F)13 mm (0.5 inches)95%moderate
March Weather-7°C (20°F)23 mm (0.9 inches)92%moderate
April Weather2°C (36°F)19 mm (0.7 inches)82%high
May Weather11°C (53°F)43 mm (1.7 inches)70%high
June Weather17°C (62°F)67 mm (2.6 inches)64%very high
July Weather19°C (66°F)63 mm (2.5 inches)78%very high
August Weather17°C (63°F)38 mm (1.5 inches)81%high
September Weather12°C (53°F)43 mm (1.7 inches)77%high
October Weather3°C (38°F)21 mm (0.8 inches)82%moderate
November Weather-6°C (21°F)31 mm (1.2 inches)89%low
December Weather-12°C (11°F)12 mm (0.5 inches)95%low

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