September Weather in Landmark, Canada

Last updated: June 18, 2025

In September, the average temperature in Landmark, Canada hovers around 14°C (57°F). However, it can vary significantly, dipping to a chilly -3°C (26°F) at its lowest and soaring to a warm 33°C (91°F) at its highest. Expect a total precipitation of 92 mm (3.6 in) over approximately 11 days, with an average humidity level of 75%. Embrace the seasonal variations and prepare accordingly!

September Temperature in Landmark

In September in Landmark, the average temperature is 14°C (57°F). Maximum temperatures can reach 33°C (91°F), while minimums can drop as low as -3°C (26°F). Overall, it's essential to pack layers to accommodate the wide temperature range during your travels.

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

The chart illustrates September temperature patterns in Landmark, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Landmark, September typically has an average temperature of 14°C (57°F), with highs reaching up to 33°C (91°F) and lows dropping to around -3°C (26°F).

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

September Precipitation in Landmark

In Landmark in September, the precipitation amount is 92 mm (3.6 in) spread over 11 days.

September Precipitation Trends in Landmark

The chart displays monthly precipitation patterns in Landmark, 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 Landmark, September typically receives around 92 mm (3.6 inches) of precipitation spread over approximately 11 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 Landmark

In Landmark in September, humidity is 75%. With an average temperature of 14°C (57°F), this humidity feels like a damp blanket enveloping you, making outdoor activities somewhat uncomfortable and travel a bit sluggish, as the air feels heavy and the heat lingers close to your skin.

September Average Humidity in Landmark

This chart illustrates the average monthly humidity levels in Landmark, 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 Landmark is approximately 75%, 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 Landmark

In Landmark 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 Landmark.

Maximum UV Index Levels in Landmark for September

The chart shows the monthly maximum UV Index (UVI) for Landmark 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 Landmark typically reaches 7, which falls under the high exposure category.

Data source: Landmark 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 Landmark Compares to Other Months

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

This table compares monthly weather conditions in Landmark, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-14°C (6°F)	18 mm (0.7 inches)	94%	low
February Weather	-16°C (4°F)	18 mm (0.7 inches)	91%	moderate
March Weather	-5°C (23°F)	18 mm (0.7 inches)	90%	moderate
April Weather	2°C (37°F)	30 mm (1.2 inches)	81%	high
May Weather	12°C (54°F)	36 mm (1.4 inches)	74%	very high
June Weather	19°C (66°F)	70 mm (2.7 inches)	75%	very high
July Weather	21°C (70°F)	74 mm (2.9 inches)	74%	very high
August Weather	19°C (66°F)	58 mm (2.3 inches)	77%	very high
September Weather	14°C (57°F)	92 mm (3.6 inches)	75%	high
October Weather	5°C (41°F)	66 mm (2.6 inches)	78%	moderate
November Weather	-5°C (24°F)	29 mm (1.1 inches)	87%	low
December Weather	-11°C (13°F)	26 mm (1.0 inches)	93%	low