September Weather in Leamington, Canada

Last updated: June 18, 2025

The average temperature in Leamington, Canada during September is a comfortable 20°C (68°F), with minimums dropping to 11°C (52°F) and maximums reaching up to 28°C (82°F). Expect about 60 mm (2.4 in) of precipitation spread over 8 days, and a pleasant average humidity level of 78%.

September Temperature in Leamington

In September in Leamington, the average temperature is 20°C (68°F). The maximum can reach 28°C (82°F), while the minimum can be as low as 11°C (52°F). This pleasant climate makes it an ideal time for outdoor activities and exploring the beautiful surroundings.

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

The chart illustrates September temperature patterns in Leamington, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Leamington, September typically has an average temperature of 20°C (68°F), with highs reaching up to 28°C (82°F) and lows dropping to around 11°C (52°F).

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

September Precipitation in Leamington

In Leamington in September, the total precipitation amount is 60 mm (2.4 in) spread over the course of 8 days.

September Precipitation Trends in Leamington

The chart displays monthly precipitation patterns in Leamington, 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 Leamington, September typically receives around 60 mm (2.4 inches) of precipitation spread over approximately 8 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 Leamington

In Leamington in September humidity is 78%. With an average temperature of 20°C (68°F), this humidity feels like a warm, enveloping blanket that makes exploring the sights a bit sticky, so travelers should stay hydrated and take frequent breaks in the shade.

September Average Humidity in Leamington

This chart illustrates the average monthly humidity levels in Leamington, 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 Leamington is approximately 78%, 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 Leamington

In Leamington in September, the maximum UV index is 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to the Hourly UV Index in Leamington.

Maximum UV Index Levels in Leamington for September

The chart shows the monthly maximum UV Index (UVI) for Leamington 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 Leamington typically reaches 8, which falls under the very high exposure category.

Data source: Leamington 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 Leamington Compares to Other Months

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

This table compares monthly weather conditions in Leamington, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-2°C (29°F)	76 mm (3.0 inches)	88%	moderate
February Weather	-2°C (29°F)	77 mm (3.0 inches)	87%	moderate
March Weather	1°C (34°F)	79 mm (3.1 inches)	87%	high
April Weather	6°C (43°F)	98 mm (3.8 inches)	87%	very high
May Weather	12°C (54°F)	110 mm (4.3 inches)	81%	very high
June Weather	19°C (67°F)	81 mm (3.2 inches)	82%	very high
July Weather	23°C (74°F)	98 mm (3.9 inches)	81%	very high
August Weather	23°C (74°F)	77 mm (3.0 inches)	78%	very high
September Weather	20°C (68°F)	60 mm (2.4 inches)	78%	very high
October Weather	14°C (58°F)	115 mm (4.5 inches)	82%	high
November Weather	6°C (43°F)	100 mm (3.9 inches)	89%	moderate
December Weather	2°C (35°F)	78 mm (3.1 inches)	86%	low