September Weather in High River, Canada

Last updated: June 18, 2025

In September, the average temperature in High River, Canada hovers around 12°C (53°F). Be prepared for a range of temperatures, with lows dipping to -3°C (28°F) and highs soaring up to 33°C (92°F). Expect an average precipitation of 34 mm (1.4 in) spread over 6 days, and a humidity level of 74% creates a moderately moist atmosphere.

September Temperature in High River

In September in High River, the average temperature is 12°C (53°F). Maximums can reach 33°C (92°F) and minimums can drop as low as -3°C (28°F). Be prepared for a wide range of temperatures, making it essential to pack layers for your trip.

September Weather in High River: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in High River, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In High River, September typically has an average temperature of 12°C (53°F), with highs reaching up to 33°C (92°F) and lows dropping to around -3°C (28°F).

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

September Precipitation in High River

In High River in September, the total precipitation amount is 34 mm (1.4 in) spread over a period of 6 days.

September Precipitation Trends in High River

The chart displays monthly precipitation patterns in High River, 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 High River, September typically receives around 34 mm (1.4 inches) of precipitation spread over approximately 6 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 High River

In High River in September, humidity is 74%. With an average temperature of 12°C (53°F), this humidity feels like a damp chill wraps around you, making outdoor activities less enjoyable and encouraging you to seek cozy indoor spots instead.

September Average Humidity in High River

This chart illustrates the average monthly humidity levels in High River, 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 High River is approximately 74%, 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 High River

In High River 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 High River.

Maximum UV Index Levels in High River for September

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

Data source: High River 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 High River Compares to Other Months

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

This table compares monthly weather conditions in High River, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-6°C (21°F)	9 mm (0.3 inches)	91%	low
February Weather	-9°C (16°F)	27 mm (1.1 inches)	93%	moderate
March Weather	-2°C (29°F)	25 mm (1.0 inches)	88%	moderate
April Weather	4°C (39°F)	36 mm (1.4 inches)	84%	high
May Weather	11°C (52°F)	59 mm (2.3 inches)	80%	very high
June Weather	15°C (60°F)	64 mm (2.5 inches)	79%	very high
July Weather	18°C (64°F)	40 mm (1.6 inches)	80%	very high
August Weather	17°C (63°F)	32 mm (1.3 inches)	77%	very high
September Weather	12°C (53°F)	34 mm (1.4 inches)	74%	high
October Weather	4°C (40°F)	28 mm (1.1 inches)	80%	moderate
November Weather	-1°C (31°F)	24 mm (1.0 inches)	86%	low
December Weather	-6°C (22°F)	21 mm (0.8 inches)	92%	low