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September Weather in Plattsville, Canada

Last updated: June 18, 2025

In September, the average temperature in Plattsville, Canada is a pleasant 17°C (63°F). However, be prepared for a range of temperatures, with a minimum of 1°C (33°F) and a maximum reaching up to 32°C (90°F). You'll also want to consider the weather's unpredictability, as 75 mm (3.0 in) of precipitation can occur over 10 days, accompanied by an average humidity of 81%.

September Temperature in Plattsville

In September in Plattsville, the average temperature is 17°C (63°F), with maximums reaching as high as 32°C (90°F) and minimums dropping to as low as 1°C (33°F). This variation makes it an ideal time for travelers to enjoy a range of outdoor activities, from warm sunny days to cooler evenings.

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

The chart illustrates September temperature patterns in Plattsville, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Plattsville, September typically has an average temperature of 17°C (63°F), with highs reaching up to 32°C (90°F) and lows dropping to around 1°C (33°F).
JanFebMarAprMayJunJulAugSepOctNovDec242533435666716963513730
Data source: Temperature data for Plattsville 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 Plattsville

In Plattsville in September, the precipitation amount is 75 mm (3.0 in) spread over a duration of 10 days.

September Precipitation Trends in Plattsville

The chart displays monthly precipitation patterns in Plattsville, 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 Plattsville, September typically receives around 75 mm (3.0 inches) of precipitation spread over approximately 10 days.
JanFebMarAprMayJunJulAugSepOctNovDec727667103991088896751077972
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Plattsville

In Plattsville in September humidity is 81%. With an average temperature of 17°C (63°F), this humidity feels like a warm blanket enveloping you, making travel slightly oppressive and calling for frequent breaks in air-conditioned spaces to recharge and enjoy your journey comfortably.

September Average Humidity in Plattsville

This chart illustrates the average monthly humidity levels in Plattsville, 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 Plattsville is approximately 81%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec90%90%88%87%83%81%79%80%81%84%88%87%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Plattsville

In Plattsville 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 Plattsville.

Maximum UV Index Levels in Plattsville for September

The chart shows the monthly maximum UV Index (UVI) for Plattsville 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 Plattsville typically reaches 7, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec2458910997542
Data source: Plattsville 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 Plattsville Compares to Other Months

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

This table compares monthly weather conditions in Plattsville, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-5°C (24°F)72 mm (2.8 inches)90%low
February Weather-4°C (25°F)76 mm (3.0 inches)90%moderate
March Weather0°C (33°F)67 mm (2.6 inches)87%moderate
April Weather6°C (43°F)103 mm (4.1 inches)87%very high
May Weather13°C (56°F)99 mm (3.9 inches)82%very high
June Weather19°C (67°F)108 mm (4.3 inches)81%very high
July Weather22°C (72°F)88 mm (3.5 inches)79%very high
August Weather21°C (69°F)96 mm (3.8 inches)80%very high
September Weather17°C (63°F)75 mm (3.0 inches)81%high
October Weather11°C (51°F)107 mm (4.2 inches)84%moderate
November Weather3°C (37°F)79 mm (3.1 inches)88%moderate
December Weather-1°C (30°F)72 mm (2.8 inches)87%low

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