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September Weather in Cassidy, Canada

Last updated: June 18, 2025

In September, the average temperature in Cassidy, Canada hovers around 14°C (57°F), with lows dipping to 3°C (38°F) and highs reaching up to 30°C (87°F). Expect 130 mm (5.1 in) of precipitation spread over 13 days, and prepare for a relatively humid experience with average humidity around 76%.

September Temperature in Cassidy

In September in Cassidy, the average temperature is 14°C (57°F). Maximum temperatures can reach 30°C (87°F), while minimums can drop to as low as 3°C (38°F). This varied climate makes Cassidy an ideal destination for travelers seeking both mild and warm weather.

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

The chart illustrates September temperature patterns in Cassidy, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Cassidy, September typically has an average temperature of 14°C (57°F), with highs reaching up to 30°C (87°F) and lows dropping to around 3°C (38°F).
JanFebMarAprMayJunJulAugSepOctNovDec373540455459646457474136
Data source: Temperature data for Cassidy 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 Cassidy

In Cassidy in September, the precipitation amount is 130 mm (5.1 in) spread over 13 days.

September Precipitation Trends in Cassidy

The chart displays monthly precipitation patterns in Cassidy, 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 Cassidy, September typically receives around 130 mm (5.1 inches) of precipitation spread over approximately 13 days.
JanFebMarAprMayJunJulAugSepOctNovDec23013812912568703132130159262228
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Cassidy

In Cassidy in September humidity is 76%. With an average temperature of 14°C (57°F), this humidity feels like a warm blanket wrapped around you, creating a heavy atmosphere that can make outdoor activities feel sluggish and stifling, urging travelers to seek shade and refreshment more frequently.

September Average Humidity in Cassidy

This chart illustrates the average monthly humidity levels in Cassidy, 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 Cassidy is approximately 76%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec86%85%86%86%81%83%84%77%76%88%87%87%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Cassidy

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

Maximum UV Index Levels in Cassidy for September

The chart shows the monthly maximum UV Index (UVI) for Cassidy 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 Cassidy typically reaches 6, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec234689986421
Data source: Cassidy 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 Cassidy Compares to Other Months

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

This table compares monthly weather conditions in Cassidy, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather3°C (37°F)230 mm (9.1 inches)86%low
February Weather2°C (35°F)138 mm (5.4 inches)85%moderate
March Weather4°C (40°F)129 mm (5.1 inches)86%moderate
April Weather7°C (46°F)124 mm (4.9 inches)86%high
May Weather12°C (54°F)68 mm (2.7 inches)81%very high
June Weather15°C (59°F)70 mm (2.8 inches)83%very high
July Weather18°C (64°F)31 mm (1.2 inches)84%very high
August Weather18°C (65°F)32 mm (1.3 inches)77%very high
September Weather14°C (57°F)130 mm (5.1 inches)76%high
October Weather8°C (47°F)159 mm (6.2 inches)88%moderate
November Weather5°C (41°F)262 mm (10.3 inches)87%low
December Weather2°C (36°F)228 mm (9.0 inches)87%low

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