September Weather in Saint Irenee and Alderwood, Canada

Last updated: June 18, 2025

In September, the average temperature in Saint Irenee and Alderwood, Canada is a comfortable 15°C (59°F). However, you might experience a range, with minimums dipping to 4°C (40°F) and maximums reaching up to 27°C (80°F). Expect about 115 mm (4.5 in) of precipitation spread over 12 days, coupled with a notable average humidity of 85%.

September Temperature in Saint Irenee and Alderwood

In September in Saint Irenee and Alderwood, the average temperature is 15°C (59°F). Maximums can reach 27°C (80°F), and minimums can be as low as 4°C (40°F). Be sure to pack a variety of clothing to comfortably enjoy both warm and cooler moments during your travels.

September Weather in Saint Irenee and Alderwood: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Saint Irenee and Alderwood, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Saint Irenee and Alderwood, September typically has an average temperature of 15°C (59°F), with highs reaching up to 27°C (80°F) and lows dropping to around 4°C (40°F).

Data source: Temperature data for Saint Irenee and Alderwood generated using information from the Copernicus Climate Change Service.

September Precipitation in Saint Irenee and Alderwood

In Saint Irenee and Alderwood in September, the total precipitation amount is 115 mm (4.5 in) over a span of 12 days.

September Precipitation Trends in Saint Irenee and Alderwood

The chart displays monthly precipitation patterns in Saint Irenee and Alderwood, 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 Saint Irenee and Alderwood, September typically receives around 115 mm (4.5 inches) of precipitation spread over approximately 12 days.

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

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

September Humidity in Saint Irenee and Alderwood

In Saint Irenee and Alderwood in September, humidity is 85%. With an average temperature of 15°C (59°F), this humidity feels like a warm, damp blanket wrapping around you, making traveling quite uncomfortable and sticky. Be prepared to take frequent breaks and stay hydrated as you navigate the lush, but humid environment.

September Average Humidity in Saint Irenee and Alderwood

This chart illustrates the average monthly humidity levels in Saint Irenee and Alderwood, 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 Saint Irenee and Alderwood is approximately 85%, 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 Saint Irenee and Alderwood

In Saint Irenee and Alderwood 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 Saint Irenee and Alderwood, you can refer to this Hourly UV Index in Saint Irenee and Alderwood.

Maximum UV Index Levels in Saint Irenee and Alderwood for September

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

Data source: Saint Irenee and Alderwood 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 Saint Irenee and Alderwood Compares to Other Months

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

This table compares monthly weather conditions in Saint Irenee and Alderwood, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-8°C (18°F)	103 mm (4.1 inches)	89%	low
February Weather	-8°C (19°F)	92 mm (3.6 inches)	90%	moderate
March Weather	-4°C (26°F)	93 mm (3.7 inches)	88%	moderate
April Weather	2°C (36°F)	116 mm (4.6 inches)	86%	high
May Weather	8°C (47°F)	104 mm (4.1 inches)	83%	very high
June Weather	15°C (58°F)	81 mm (3.2 inches)	75%	very high
July Weather	19°C (66°F)	78 mm (3.1 inches)	82%	very high
August Weather	19°C (67°F)	77 mm (3.0 inches)	84%	very high
September Weather	15°C (59°F)	115 mm (4.5 inches)	85%	high
October Weather	9°C (49°F)	110 mm (4.3 inches)	87%	moderate
November Weather	2°C (36°F)	140 mm (5.5 inches)	86%	low
December Weather	-4°C (25°F)	107 mm (4.2 inches)	88%	low