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September Weather in Bow Island, Canada

Last updated: June 18, 2025

In Bow Island, Canada, the average temperature in September hovers around 13°C (56°F). Temperatures can swing from a chilly -2°C (28°F) to a warm 34°C (93°F), offering a wide range of weather experiences. Expect about 35 mm (1.4 in) of precipitation over 5 days, contributing to an average humidity of 66%. Whether you're bracing for the cold or enjoying the sun, Bow Island in September promises a blend of climates!

September Temperature in Bow Island

In September in Bow Island, the average temperature is 13°C (56°F). Maximums can reach up to 34°C (93°F), while minimums can drop as low as -2°C (28°F). This range makes it essential for travelers to pack for both warm and cold weather conditions.

September Weather in Bow Island: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Bow Island, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Bow Island, September typically has an average temperature of 13°C (56°F), with highs reaching up to 34°C (93°F) and lows dropping to around -2°C (28°F).
JanFebMarAprMayJunJulAugSepOctNovDec211429405463686656413022
Data source: Temperature data for Bow Island 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 Bow Island

In Bow Island in September, the precipitation amount is 35 mm (1.4 in) over a span of 5 days.

September Precipitation Trends in Bow Island

The chart displays monthly precipitation patterns in Bow Island, 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 Bow Island, September typically receives around 35 mm (1.4 inches) of precipitation spread over approximately 5 days.
JanFebMarAprMayJunJulAugSepOctNovDec102721314958292735323420
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Bow Island

In Bow Island in September, humidity is 66%. With an average temperature of 13°C (56°F), this humidity feels like a refreshing embrace, making travel comfortable yet occasionally brisk, inviting you to explore while ensuring you stay hydrated and take breaks from time to time.

September Average Humidity in Bow Island

This chart illustrates the average monthly humidity levels in Bow Island, 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 Bow Island is approximately 66%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec86%89%83%76%73%75%75%70%67%72%82%89%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Bow Island

In Bow Island 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 Bow Island.

Maximum UV Index Levels in Bow Island for September

The chart shows the monthly maximum UV Index (UVI) for Bow Island 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 Bow Island typically reaches 7, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec235689987432
Data source: Bow Island 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 Bow Island Compares to Other Months

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

This table compares monthly weather conditions in Bow Island, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-6°C (21°F)10 mm (0.4 inches)86%low
February Weather-10°C (14°F)27 mm (1.0 inches)89%moderate
March Weather-2°C (29°F)20 mm (0.8 inches)83%moderate
April Weather4°C (40°F)31 mm (1.2 inches)75%high
May Weather12°C (54°F)49 mm (1.9 inches)72%very high
June Weather17°C (63°F)57 mm (2.3 inches)75%very high
July Weather20°C (68°F)29 mm (1.1 inches)75%very high
August Weather19°C (66°F)27 mm (1.1 inches)69%very high
September Weather13°C (56°F)35 mm (1.4 inches)66%high
October Weather5°C (41°F)32 mm (1.2 inches)72%moderate
November Weather-1°C (30°F)34 mm (1.3 inches)82%moderate
December Weather-5°C (23°F)20 mm (0.8 inches)89%low

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