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September Weather in Westlock, Canada

Last updated: June 18, 2025

In Westlock, Canada, the average temperature in September hovers around 10°C (50°F). Expect a chilly minimum of -4°C (26°F), while the mercury can rise to a pleasant 29°C (84°F). During this month, you'll encounter approximately 38 mm (1.5 in) of precipitation spread over 8 days, accompanied by an average humidity of 73%.

September Temperature in Westlock

In September, in Westlock, the average temperature is 10°C (50°F), with a maximum reaching 29°C (84°F) and a minimum dipping as low as -4°C (26°F). Be prepared for a range of weather conditions when traveling during this month.

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

The chart illustrates September temperature patterns in Westlock, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Westlock, September typically has an average temperature of 10°C (50°F), with highs reaching up to 29°C (84°F) and lows dropping to around -4°C (26°F).
JanFebMarAprMayJunJulAugSepOctNovDec12823355259636050372314
Data source: Temperature data for Westlock 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 Westlock

In Westlock in September, the total precipitation amount is 38 mm (1.5 in), spread over 8 days.

September Precipitation Trends in Westlock

The chart displays monthly precipitation patterns in Westlock, 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 Westlock, September typically receives around 38 mm (1.5 inches) of precipitation spread over approximately 8 days.
JanFebMarAprMayJunJulAugSepOctNovDec19202032461091066538313619
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Westlock

In Westlock in September, humidity is 73%. With an average temperature of 10°C (50°F), this humidity feels like a chilly, damp embrace, making it essential to layer your clothing while traveling, as the moisture in the air can quickly chill you to the bone.

September Average Humidity in Westlock

This chart illustrates the average monthly humidity levels in Westlock, 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 Westlock is approximately 73%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec88%93%91%78%70%70%79%78%73%81%85%93%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Westlock

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

Maximum UV Index Levels in Westlock for September

The chart shows the monthly maximum UV Index (UVI) for Westlock 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 Westlock typically reaches 6, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec124577876311
Data source: Westlock 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 Westlock Compares to Other Months

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

This table compares monthly weather conditions in Westlock, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-11°C (12°F)19 mm (0.7 inches)88%low
February Weather-13°C (9°F)20 mm (0.8 inches)93%low
March Weather-5°C (23°F)20 mm (0.8 inches)90%moderate
April Weather2°C (36°F)32 mm (1.3 inches)78%moderate
May Weather11°C (52°F)46 mm (1.8 inches)70%high
June Weather15°C (59°F)109 mm (4.3 inches)70%high
July Weather17°C (63°F)106 mm (4.2 inches)79%very high
August Weather15°C (60°F)65 mm (2.6 inches)78%high
September Weather10°C (50°F)38 mm (1.5 inches)73%high
October Weather3°C (37°F)31 mm (1.2 inches)81%moderate
November Weather-5°C (23°F)36 mm (1.4 inches)85%low
December Weather-10°C (15°F)19 mm (0.8 inches)93%low

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