September Weather in Cochrane, Canada

Last updated: June 18, 2025

In Cochrane, Canada, the average temperature in September is a cool 9°C (49°F). However, be prepared for a temperature range that can dip to a brisk -4°C (25°F) or peak at a warm 30°C (87°F). During this month, expect 53 mm (2.1 in) of precipitation over 10 days, accompanied by an average humidity of 74%. Whether you're braving the chill or enjoying the warmth, don't forget your umbrella!

September Temperature in Cochrane

In September in Cochrane, the average temperature is 9°C (49°F), with maximums reaching up to 30°C (87°F) and minimums potentially dropping as low as -4°C (25°F). This time of year offers a diverse range of weather, making it essential for travelers to pack accordingly to enjoy all that Cochrane has to offer.

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

The chart illustrates September temperature patterns in Cochrane, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Cochrane, September typically has an average temperature of 9°C (49°F), with highs reaching up to 30°C (87°F) and lows dropping to around -4°C (25°F).
JanFebMarAprMayJunJulAugSepOctNovDec171125344855605849362718
Data source: Temperature data for Cochrane 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 Cochrane

In Cochrane in September, the precipitation amount is 53 mm (2.1 in) spread over a duration of 10 days.

September Precipitation Trends in Cochrane

The chart displays monthly precipitation patterns in Cochrane, 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 Cochrane, September typically receives around 53 mm (2.1 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec103231487196795353362928
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Cochrane

In Cochrane in September humidity is 74%. With an average temperature of 9°C (49°F), this humidity feels like a chilly embrace that can make outdoor activities somewhat uncomfortable; travelers may find themselves needing to dress in layers to stay warm while also coping with the dampness in the air.

September Average Humidity in Cochrane

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

In Cochrane 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 Cochrane.

Maximum UV Index Levels in Cochrane for September

The chart shows the monthly maximum UV Index (UVI) for Cochrane 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 Cochrane typically reaches 7, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec234688987421
Data source: Cochrane 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 Cochrane Compares to Other Months

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

This table compares monthly weather conditions in Cochrane, 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-12°C (12°F)32 mm (1.3 inches)93%moderate
March Weather-4°C (25°F)31 mm (1.2 inches)88%moderate
April Weather1°C (35°F)48 mm (1.9 inches)84%high
May Weather9°C (48°F)71 mm (2.8 inches)80%very high
June Weather13°C (56°F)96 mm (3.8 inches)79%very high
July Weather15°C (60°F)79 mm (3.1 inches)80%very high
August Weather15°C (59°F)53 mm (2.1 inches)77%very high
September Weather9°C (49°F)53 mm (2.1 inches)74%high
October Weather2°C (37°F)36 mm (1.4 inches)80%moderate
November Weather-3°C (27°F)29 mm (1.1 inches)86%low
December Weather-8°C (18°F)27 mm (1.1 inches)92%low

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