September Weather in Leblanc, Canada

Last updated: June 18, 2025

In September, the average temperature in Leblanc, Canada hovers around 11°C (53°F), with fluctuations that can see lows of -4°C (25°F) and highs reaching 29°C (84°F). Expect a fair amount of rain, with 131 mm (5.2 in) of precipitation spread across 14 days. The air is quite humid, with an average humidity of 82%, adding to the overall atmosphere of the season.

September Temperature in Leblanc

In September in Leblanc, the average temperature is 11°C (53°F). The maximum can reach 29°C (84°F), while the minimum can drop as low as -4°C (25°F). Travelers should be prepared for a wide range of temperatures during this time.

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

The chart illustrates September temperature patterns in Leblanc, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Leblanc, September typically has an average temperature of 11°C (53°F), with highs reaching up to 29°C (84°F) and lows dropping to around -4°C (25°F).

Data source: Temperature data for Leblanc generated using information from the Copernicus Climate Change Service.

September Precipitation in Leblanc

In Leblanc in September, the precipitation amount is 131 mm (5.2 in) spread over the course of 14 days.

September Precipitation Trends in Leblanc

The chart displays monthly precipitation patterns in Leblanc, 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 Leblanc, September typically receives around 131 mm (5.2 inches) of precipitation spread over approximately 14 days.

Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

September Humidity in Leblanc

In Leblanc in September humidity is 82%. With an average temperature of 11°C (53°F), this humidity feels like a heavy blanket wrapping around you, making outdoor activities uncomfortable and sticky, often requiring frequent breaks to escape the muggy atmosphere.

September Average Humidity in Leblanc

This chart illustrates the average monthly humidity levels in Leblanc, 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 Leblanc is approximately 82%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Leblanc

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

Maximum UV Index Levels in Leblanc for September

The chart shows the monthly maximum UV Index (UVI) for Leblanc 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 Leblanc typically reaches 6, which falls under the high exposure category.

Data source: Leblanc 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 Leblanc Compares to Other Months

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

This table compares monthly weather conditions in Leblanc, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-15°C (6°F)	56 mm (2.2 inches)	97%	low
February Weather	-14°C (8°F)	64 mm (2.5 inches)	96%	moderate
March Weather	-8°C (19°F)	75 mm (2.9 inches)	94%	moderate
April Weather	0°C (33°F)	83 mm (3.3 inches)	91%	very high
May Weather	8°C (47°F)	103 mm (4.0 inches)	79%	very high
June Weather	15°C (59°F)	98 mm (3.8 inches)	71%	very high
July Weather	18°C (65°F)	132 mm (5.2 inches)	81%	very high
August Weather	16°C (62°F)	127 mm (5.0 inches)	83%	very high
September Weather	11°C (53°F)	131 mm (5.2 inches)	82%	high
October Weather	5°C (40°F)	110 mm (4.3 inches)	90%	moderate
November Weather	-4°C (25°F)	90 mm (3.6 inches)	93%	low
December Weather	-11°C (12°F)	89 mm (3.5 inches)	97%	low