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September Weather in Baie-Comeau, Canada

Last updated: June 18, 2025

In Baie-Comeau, Canada, the average temperature in September hovers around 12°C (54°F), with a minimum of 3°C (37°F) and a maximum reaching 21°C (71°F). Expect a precipitation total of 123 mm (4.9 in) spread over 13 days, contributing to an average humidity level of 85%. Get ready for a mix of mild warmth and occasional rain!

September Temperature in Baie-Comeau

In September in Baie-Comeau, the average temperature is 12°C (54°F). Maximums can reach 21°C (71°F), and minimums can be as low as 3°C (37°F). It's a great time to visit for those who enjoy mild weather and outdoor activities.

September Weather in Baie-Comeau: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Baie-Comeau, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Baie-Comeau, September typically has an average temperature of 12°C (54°F), with highs reaching up to 21°C (71°F) and lows dropping to around 3°C (37°F).
JanFebMarAprMayJunJulAugSepOctNovDec101222334557636254433017
Data source: Temperature data for Baie-Comeau 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 Baie-Comeau

In Baie-Comeau in September, the precipitation amount is 123 mm (4.9 in) over the course of 13 days.

September Precipitation Trends in Baie-Comeau

The chart displays monthly precipitation patterns in Baie-Comeau, 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 Baie-Comeau, September typically receives around 123 mm (4.9 inches) of precipitation spread over approximately 13 days.
JanFebMarAprMayJunJulAugSepOctNovDec6965759779688393123139107101
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Baie-Comeau

In Baie-Comeau in September, humidity is 85%. With an average temperature of 12°C (54°F), this humidity feels like a heavy blanket wrapping around you, making traveling not only uncomfortable but also exhausting as the damp air clings to your skin and slows your movements.

September Average Humidity in Baie-Comeau

This chart illustrates the average monthly humidity levels in Baie-Comeau, 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 Baie-Comeau is approximately 85%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec94%93%91%89%82%74%80%83%85%88%89%94%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Baie-Comeau

In Baie-Comeau 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 Baie-Comeau, you can refer to this Hourly UV Index in Baie-Comeau.

Maximum UV Index Levels in Baie-Comeau for September

The chart shows the monthly maximum UV Index (UVI) for Baie-Comeau 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 Baie-Comeau typically reaches 6, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec235789886421
Data source: Baie-Comeau 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 Baie-Comeau Compares to Other Months

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

This table compares monthly weather conditions in Baie-Comeau, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-12°C (11°F)69 mm (2.7 inches)94%low
February Weather-11°C (12°F)65 mm (2.6 inches)93%moderate
March Weather-6°C (22°F)75 mm (2.9 inches)91%moderate
April Weather1°C (34°F)97 mm (3.8 inches)89%high
May Weather7°C (45°F)79 mm (3.1 inches)82%very high
June Weather14°C (57°F)68 mm (2.7 inches)74%very high
July Weather17°C (64°F)83 mm (3.3 inches)80%very high
August Weather17°C (63°F)93 mm (3.7 inches)83%very high
September Weather12°C (54°F)123 mm (4.9 inches)85%high
October Weather6°C (44°F)139 mm (5.5 inches)88%moderate
November Weather-1°C (30°F)107 mm (4.2 inches)89%low
December Weather-9°C (17°F)101 mm (4.0 inches)94%low

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