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September Weather in Selkirk, Canada

Last updated: June 18, 2025

In September, the average temperature in Selkirk, Canada hovers around 13°C (56°F), with potential extremes ranging from a chilly -3°C (28°F) to a scorching 32°C (91°F). You'll likely experience 95 mm (3.7 in) of precipitation spread over 11 days, contributing to an average humidity of 82%. Plan accordingly to enjoy the unique climate of this vibrant destination!

September Temperature in Selkirk

In September in Selkirk, the average temperature is 13°C (56°F). The maximum can reach 32°C (91°F), while the minimum can drop as low as -3°C (28°F). Travelers should be prepared for a wide range of temperatures, making it essential to pack both warm and cool weather clothing.

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

The chart illustrates September temperature patterns in Selkirk, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Selkirk, September typically has an average temperature of 13°C (56°F), with highs reaching up to 32°C (91°F) and lows dropping to around -3°C (28°F).
JanFebMarAprMayJunJulAugSepOctNovDec5323355365706656412312
Data source: Temperature data for Selkirk 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 Selkirk

In Selkirk in September, the total precipitation amount is 95 mm (3.7 in) spread over 11 days.

September Precipitation Trends in Selkirk

The chart displays monthly precipitation patterns in Selkirk, 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 Selkirk, September typically receives around 95 mm (3.7 inches) of precipitation spread over approximately 11 days.
JanFebMarAprMayJunJulAugSepOctNovDec191719313477666195582724
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Selkirk

In Selkirk in September, humidity is 82%. With an average temperature of 13°C (56°F), this humidity feels like a damp blanket wrapping around you, making it feel much cooler than it is and creating a heavy atmosphere that can be exhausting for travelers.

September Average Humidity in Selkirk

This chart illustrates the average monthly humidity levels in Selkirk, 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 Selkirk is approximately 82%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec95%94%93%84%76%71%78%82%82%85%88%94%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Selkirk

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

Maximum UV Index Levels in Selkirk for September

The chart shows the monthly maximum UV Index (UVI) for Selkirk 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 Selkirk typically reaches 6, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec244679886421
Data source: Selkirk 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 Selkirk Compares to Other Months

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

This table compares monthly weather conditions in Selkirk, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-15°C (6°F)18 mm (0.7 inches)95%low
February Weather-16°C (3°F)16 mm (0.6 inches)94%moderate
March Weather-5°C (23°F)19 mm (0.7 inches)93%moderate
April Weather2°C (36°F)31 mm (1.2 inches)84%high
May Weather11°C (53°F)34 mm (1.3 inches)76%high
June Weather19°C (66°F)77 mm (3.0 inches)71%very high
July Weather21°C (70°F)66 mm (2.6 inches)78%very high
August Weather19°C (67°F)61 mm (2.4 inches)82%very high
September Weather13°C (56°F)95 mm (3.7 inches)82%high
October Weather5°C (41°F)58 mm (2.3 inches)85%moderate
November Weather-5°C (24°F)27 mm (1.1 inches)87%low
December Weather-11°C (12°F)24 mm (0.9 inches)94%low

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