nomadseason

September Weather in Carstairs, Canada

Last updated: June 18, 2025

In Carstairs, Canada, the average temperature in September hovers around 11°C (51°F). However, temperatures can swing from a chilly -3°C (27°F) to a warm 32°C (90°F). Expect about 51 mm (2.0 in) of precipitation spread over 10 days, contributing to an average humidity of 74%.

September Temperature in Carstairs

In September in Carstairs, the average temperature is 11°C (51°F). The maximum can reach 32°C (90°F), and the minimum can be as low as -3°C (27°F). Travelers should be prepared for a wide range of temperatures, making layering essential for comfort during this time.

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

The chart illustrates September temperature patterns in Carstairs, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Carstairs, September typically has an average temperature of 11°C (51°F), with highs reaching up to 32°C (90°F) and lows dropping to around -3°C (27°F).
JanFebMarAprMayJunJulAugSepOctNovDec181225365058626151382819
Data source: Temperature data for Carstairs generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Carstairs

In Carstairs in September, the total precipitation amount is 51 mm (2.0 in) spread over a period of 10 days.

September Precipitation Trends in Carstairs

The chart displays monthly precipitation patterns in Carstairs, 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 Carstairs, September typically receives around 51 mm (2.0 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec92828376295875051313026
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

September Humidity in Carstairs

In Carstairs in September, humidity is 74%. With an average temperature of 11°C (51°F), this humidity feels like a damp chill that seeps into your bones, making outdoor exploration a bit uncomfortable and encouraging visitors to seek refuge in cozy cafés or indoor attractions.

September Average Humidity in Carstairs

This chart illustrates the average monthly humidity levels in Carstairs, 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 Carstairs is approximately 74%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec91%93%88%84%80%79%80%77%74%80%86%92%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Carstairs

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

Maximum UV Index Levels in Carstairs for September

The chart shows the monthly maximum UV Index (UVI) for Carstairs 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 Carstairs typically reaches 6, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec234678886421
Data source: Carstairs 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 Carstairs Compares to Other Months

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

This table compares monthly weather conditions in Carstairs, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-8°C (18°F)9 mm (0.3 inches)91%low
February Weather-11°C (12°F)28 mm (1.1 inches)93%moderate
March Weather-4°C (25°F)28 mm (1.1 inches)88%moderate
April Weather2°C (36°F)37 mm (1.5 inches)84%high
May Weather10°C (51°F)62 mm (2.5 inches)80%high
June Weather14°C (58°F)95 mm (3.8 inches)79%very high
July Weather17°C (62°F)87 mm (3.4 inches)80%very high
August Weather16°C (61°F)50 mm (2.0 inches)77%very high
September Weather11°C (51°F)51 mm (2.0 inches)74%high
October Weather3°C (38°F)31 mm (1.2 inches)80%moderate
November Weather-2°C (28°F)30 mm (1.2 inches)86%low
December Weather-7°C (19°F)26 mm (1.0 inches)92%low

Compare Carstairs's Climate with Cities Worldwide