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September Weather in Markdale, Canada

Last updated: June 18, 2025

In Markdale, Canada, the average temperature in September hovers around 15°C (60°F), but be prepared for a range: it can dip as low as -1°C (30°F) and rise up to a scorching 31°C (88°F). Expect some rain, with 97 mm (3.8 in) of precipitation spread over about 12 days, contributing to an average humidity of 80%. Pack accordingly for a variety of weather!

September Temperature in Markdale

In September in Markdale, the average temperature is 15°C (60°F). Maximum temperatures can reach 31°C (88°F), while the minimum can drop as low as -1°C (30°F). Pack layers to prepare for a mix of warm days and chilly nights while exploring this diverse destination!

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

The chart illustrates September temperature patterns in Markdale, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Markdale, September typically has an average temperature of 15°C (60°F), with highs reaching up to 31°C (88°F) and lows dropping to around -1°C (30°F).
JanFebMarAprMayJunJulAugSepOctNovDec212230415463686659483427
Data source: Temperature data for Markdale 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 Markdale

In Markdale in September, the precipitation amount is 97 mm (3.8 in) spread over 12 days.

September Precipitation Trends in Markdale

The chart displays monthly precipitation patterns in Markdale, 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 Markdale, September typically receives around 97 mm (3.8 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec748371114103108107113971049684
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Markdale

In Markdale in September humidity is 80%. With an average temperature of 15°C (60°F), this humidity feels like a warm, sticky embrace that can make even the simplest stroll feel like a workout, leaving travelers yearning for a refreshing breeze or shade to escape the weight of the air.

September Average Humidity in Markdale

This chart illustrates the average monthly humidity levels in Markdale, 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 Markdale is approximately 80%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec91%92%88%87%82%79%76%77%80%84%87%88%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Markdale

In Markdale 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 Markdale.

Maximum UV Index Levels in Markdale for September

The chart shows the monthly maximum UV Index (UVI) for Markdale 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 Markdale typically reaches 7, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec2458910997532
Data source: Markdale 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 Markdale Compares to Other Months

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

This table compares monthly weather conditions in Markdale, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-6°C (21°F)74 mm (2.9 inches)91%low
February Weather-6°C (22°F)83 mm (3.3 inches)92%moderate
March Weather-1°C (30°F)71 mm (2.8 inches)88%moderate
April Weather5°C (41°F)114 mm (4.5 inches)87%very high
May Weather12°C (54°F)103 mm (4.0 inches)82%very high
June Weather17°C (64°F)108 mm (4.3 inches)79%very high
July Weather20°C (69°F)107 mm (4.2 inches)76%very high
August Weather19°C (67°F)113 mm (4.5 inches)77%very high
September Weather15°C (60°F)97 mm (3.8 inches)80%high
October Weather9°C (49°F)104 mm (4.1 inches)84%moderate
November Weather1°C (35°F)96 mm (3.8 inches)87%moderate
December Weather-3°C (27°F)84 mm (3.3 inches)88%low

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