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September Weather in Chestermere, Canada

Last updated: June 18, 2025

In September, the average temperature in Chestermere, Canada hovers around 11°C (53°F), offering a mild climate. Expect a diverse range as temperatures can dip to a brisk -3°C (27°F) or rise to a warm 33°C (93°F). With a precipitation amount of 42 mm (1.7 in) spread over 9 days, it's wise to be prepared for some showers. The average humidity is a comfortable 74%, contributing to a refreshing atmosphere.

September Temperature in Chestermere

In September in Chestermere, the average temperature is 11°C (53°F), with maximums reaching 33°C (93°F) and minimums dropping as low as -3°C (27°F). This varied climate makes Chestermere an ideal destination for travelers seeking both warm and cool experiences.

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

The chart illustrates September temperature patterns in Chestermere, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Chestermere, September typically has an average temperature of 11°C (53°F), with highs reaching up to 33°C (93°F) and lows dropping to around -3°C (27°F).
JanFebMarAprMayJunJulAugSepOctNovDec191327375159636352392820
Data source: Temperature data for Chestermere 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 Chestermere

In Chestermere in September, the precipitation amount is 42 mm (1.7 in) spread over 9 days.

September Precipitation Trends in Chestermere

The chart displays monthly precipitation patterns in Chestermere, 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 Chestermere, September typically receives around 42 mm (1.7 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec92826355885653942302824
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Chestermere

In Chestermere in September humidity is 74%. With an average temperature of 11°C (53°F), this humidity feels like a damp chill that seeps into your bones, making outdoor adventures less inviting and suggesting that travelers should dress in layers to stay warm and comfortable.

September Average Humidity in Chestermere

This chart illustrates the average monthly humidity levels in Chestermere, 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 Chestermere 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 Chestermere

In Chestermere 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 Chestermere.

Maximum UV Index Levels in Chestermere for September

The chart shows the monthly maximum UV Index (UVI) for Chestermere 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 Chestermere typically reaches 7, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec234778887421
Data source: Chestermere 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 Chestermere Compares to Other Months

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

This table compares monthly weather conditions in Chestermere, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-7°C (19°F)8 mm (0.3 inches)91%low
February Weather-10°C (14°F)28 mm (1.1 inches)93%moderate
March Weather-3°C (28°F)26 mm (1.0 inches)88%moderate
April Weather3°C (38°F)35 mm (1.4 inches)84%high
May Weather11°C (52°F)58 mm (2.3 inches)80%high
June Weather15°C (60°F)84 mm (3.3 inches)79%very high
July Weather17°C (64°F)65 mm (2.6 inches)80%very high
August Weather17°C (63°F)39 mm (1.6 inches)77%very high
September Weather11°C (53°F)42 mm (1.7 inches)74%high
October Weather4°C (39°F)30 mm (1.2 inches)80%moderate
November Weather-2°C (29°F)28 mm (1.1 inches)86%low
December Weather-7°C (20°F)23 mm (0.9 inches)92%low

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