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September Weather in Carleton Place, Canada

Last updated: June 18, 2025

In Carleton Place, Canada, the average temperature for September hovers around 16°C (61°F), with a minimum dipping to 0°C (32°F) and a peak reaching 33°C (92°F). Expect 59 mm (2.3 in) of precipitation over approximately 9 days, resulting in an average humidity of 72%. Prepare for a mix of chilly and warm days this month!

September Temperature in Carleton Place

In September in Carleton Place, the average temperature is 16°C (61°F). Maximum temperatures can reach 33°C (92°F), while minimums can drop as low as 0°C (32°F). Be prepared for a wide range of temperatures when traveling during this time.

September Weather in Carleton Place: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Carleton Place, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Carleton Place, September typically has an average temperature of 16°C (61°F), with highs reaching up to 33°C (92°F) and lows dropping to around 0°C (32°F).
JanFebMarAprMayJunJulAugSepOctNovDec171928425565716860483323
Data source: Temperature data for Carleton Place 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 Carleton Place

In Carleton Place in September, the precipitation amount is 59 mm (2.3 in) over the course of 9 days.

September Precipitation Trends in Carleton Place

The chart displays monthly precipitation patterns in Carleton Place, 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 Carleton Place, September typically receives around 59 mm (2.3 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec7073771111089010789601258973
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Carleton Place

In Carleton Place in September humidity is 72%. With an average temperature of 16°C (61°F), this humidity feels like a damp blanket wrapping around you, making every step feel heavier and requiring extra effort while traveling.

September Average Humidity in Carleton Place

This chart illustrates the average monthly humidity levels in Carleton Place, 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 Carleton Place is approximately 72%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec93%93%86%82%75%68%69%67%72%83%88%89%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Carleton Place

In Carleton Place 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 Carleton Place.

Maximum UV Index Levels in Carleton Place for September

The chart shows the monthly maximum UV Index (UVI) for Carleton Place 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 Carleton Place typically reaches 7, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec245899987532
Data source: Carleton Place 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 Carleton Place Compares to Other Months

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

This table compares monthly weather conditions in Carleton Place, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-8°C (17°F)70 mm (2.8 inches)93%low
February Weather-7°C (19°F)73 mm (2.9 inches)93%moderate
March Weather-2°C (28°F)77 mm (3.0 inches)86%moderate
April Weather5°C (42°F)111 mm (4.4 inches)82%very high
May Weather13°C (56°F)108 mm (4.2 inches)75%very high
June Weather18°C (65°F)90 mm (3.5 inches)68%very high
July Weather21°C (71°F)106 mm (4.2 inches)69%very high
August Weather20°C (68°F)89 mm (3.5 inches)67%very high
September Weather16°C (61°F)59 mm (2.3 inches)72%high
October Weather9°C (49°F)125 mm (4.9 inches)83%moderate
November Weather1°C (34°F)89 mm (3.5 inches)88%moderate
December Weather-5°C (23°F)73 mm (2.9 inches)89%low

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