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September Weather in Olds, Canada

Last updated: June 18, 2025

In September, the average temperature in Olds, Canada hovers around 11°C (51°F). However, temperatures can range from a chilly -4°C (25°F) to a warm 32°C (90°F). Expect about 52 mm (2.0 in) of precipitation spread over 10 days, contributing to an average humidity level of 74%.

September Temperature in Olds

In September in Olds, the average temperature is 11°C (51°F), with maximums reaching 32°C (90°F) and minimums dropping as low as -4°C (25°F). Travelers should be prepared for a wide range of temperatures, ensuring they pack accordingly for fluctuating weather conditions.

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

The chart illustrates September temperature patterns in Olds, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Olds, 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 -4°C (25°F).
JanFebMarAprMayJunJulAugSepOctNovDec171225365159626151382718
Data source: Temperature data for Olds 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 Olds

In Olds in September, the precipitation amount is 52 mm (2.0 in) over the course of 10 days.

September Precipitation Trends in Olds

The chart displays monthly precipitation patterns in Olds, 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 Olds, September typically receives around 52 mm (2.0 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec92528346394905152303126
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Olds

In Olds 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 Olds

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

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

Maximum UV Index Levels in Olds for September

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

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

This table compares monthly weather conditions in Olds, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-8°C (17°F)9 mm (0.4 inches)91%low
February Weather-11°C (12°F)25 mm (1.0 inches)93%moderate
March Weather-4°C (25°F)28 mm (1.1 inches)88%moderate
April Weather2°C (36°F)34 mm (1.3 inches)84%high
May Weather11°C (51°F)62 mm (2.5 inches)80%high
June Weather15°C (59°F)94 mm (3.7 inches)79%very high
July Weather17°C (62°F)90 mm (3.6 inches)80%very high
August Weather16°C (61°F)51 mm (2.0 inches)77%very high
September Weather11°C (51°F)52 mm (2.0 inches)74%high
October Weather3°C (38°F)30 mm (1.2 inches)80%moderate
November Weather-3°C (28°F)31 mm (1.2 inches)86%low
December Weather-8°C (18°F)26 mm (1.0 inches)92%low

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