September Weather in Outlook, Canada

Last updated: June 18, 2025

In September, the average temperature in Outlook, Canada hovers around 12°C (54°F). This month can bring a wide range of temperatures, with a minimum of -3°C (27°F) and soaring highs of 32°C (90°F). Expect about 41 mm (1.6 in) of precipitation over 5 days, and a comfortable average humidity of 69%.

September Temperature in Outlook

In September in Outlook, the average temperature is 12°C (54°F). Maximums can reach 32°C (90°F), while minimums can drop to as low as -3°C (27°F). Be prepared for a wide range of temperatures if you plan to travel during this time.

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

The chart illustrates September temperature patterns in Outlook, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Outlook, September typically has an average temperature of 12°C (54°F), with highs reaching up to 32°C (90°F) and lows dropping to around -3°C (27°F).

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

September Precipitation in Outlook

In Outlook in September, the precipitation amount is 41 mm (1.6 in) over a period of 5 days.

September Precipitation Trends in Outlook

The chart displays monthly precipitation patterns in Outlook, 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 Outlook, September typically receives around 41 mm (1.6 inches) of precipitation spread over approximately 5 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 Outlook

In Outlook in September humidity is 69%. With an average temperature of 12°C (54°F), this humidity feels like a cool, brisk morning, perfect for a light jacket but a bit damp, making outdoor activities refreshing yet slightly uncomfortable for prolonged exposure.

September Average Humidity in Outlook

This chart illustrates the average monthly humidity levels in Outlook, 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 Outlook is approximately 69%, 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 Outlook

In Outlook 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 Outlook.

Maximum UV Index Levels in Outlook for September

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

Data source: Outlook 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 Outlook Compares to Other Months

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

This table compares monthly weather conditions in Outlook, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-12°C (10°F)	14 mm (0.5 inches)	91%	low
February Weather	-15°C (5°F)	11 mm (0.4 inches)	93%	moderate
March Weather	-5°C (23°F)	21 mm (0.8 inches)	88%	moderate
April Weather	3°C (37°F)	19 mm (0.8 inches)	74%	high
May Weather	12°C (54°F)	34 mm (1.3 inches)	72%	high
June Weather	17°C (63°F)	64 mm (2.5 inches)	65%	very high
July Weather	20°C (67°F)	44 mm (1.7 inches)	77%	very high
August Weather	18°C (64°F)	38 mm (1.5 inches)	76%	high
September Weather	12°C (54°F)	41 mm (1.6 inches)	69%	high
October Weather	4°C (39°F)	28 mm (1.1 inches)	75%	moderate
November Weather	-5°C (23°F)	31 mm (1.2 inches)	86%	low
December Weather	-10°C (15°F)	15 mm (0.6 inches)	94%	low