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September Weather in Armstrong, Canada

Last updated: June 18, 2025

In September, the average temperature in Armstrong, Canada is a pleasant 14°C (57°F), with temperatures ranging from a cool 2°C (37°F) to a warm 32°C (91°F). This month sees 66 mm (2.6 in) of precipitation over approximately 12 days, contributing to an average humidity level of 81%. Prepare for a mix of weather as you plan your visit!

September Temperature in Armstrong

In September in Armstrong, the average temperature is 14°C (57°F). Maximum temperatures can reach 32°C (91°F), while minimum temperatures can drop as low as 2°C (37°F). Be sure to pack a mix of clothing to enjoy both warm and cool moments during your travels!

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

The chart illustrates September temperature patterns in Armstrong, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Armstrong, September typically has an average temperature of 14°C (57°F), with highs reaching up to 32°C (91°F) and lows dropping to around 2°C (37°F).
JanFebMarAprMayJunJulAugSepOctNovDec262536435461676757433529
Data source: Temperature data for Armstrong generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Armstrong

In Armstrong in September, the precipitation amount is 66 mm (2.6 in) over the course of 12 days.

September Precipitation Trends in Armstrong

The chart displays monthly precipitation patterns in Armstrong, 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 Armstrong, September typically receives around 66 mm (2.6 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec5561536355594026668510081
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

September Humidity in Armstrong

In Armstrong in September, humidity is 81%. With an average temperature of 14°C (57°F), this humidity feels like a warm, dense blanket that clings to your skin, making outdoor exploration a bit heavier and more tiring.

September Average Humidity in Armstrong

This chart illustrates the average monthly humidity levels in Armstrong, 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 Armstrong is approximately 81%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec94%93%92%89%86%84%85%82%81%90%95%98%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Armstrong

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

Maximum UV Index Levels in Armstrong for September

The chart shows the monthly maximum UV Index (UVI) for Armstrong 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 Armstrong typically reaches 6, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec235689986421
Data source: Armstrong 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 Armstrong Compares to Other Months

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

This table compares monthly weather conditions in Armstrong, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-4°C (26°F)55 mm (2.1 inches)94%low
February Weather-4°C (25°F)61 mm (2.4 inches)93%moderate
March Weather2°C (36°F)53 mm (2.1 inches)92%moderate
April Weather6°C (43°F)63 mm (2.5 inches)89%high
May Weather12°C (55°F)55 mm (2.1 inches)85%very high
June Weather16°C (61°F)59 mm (2.3 inches)84%very high
July Weather20°C (67°F)40 mm (1.6 inches)85%very high
August Weather19°C (67°F)26 mm (1.0 inches)82%very high
September Weather14°C (57°F)66 mm (2.6 inches)81%high
October Weather6°C (43°F)85 mm (3.3 inches)90%moderate
November Weather2°C (36°F)100 mm (3.9 inches)95%low
December Weather-2°C (29°F)81 mm (3.2 inches)98%low

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