September Weather in Bothwell, Canada

Last updated: June 18, 2025

In September, the average temperature in Bothwell, Canada hovers around 18°C (65°F), making it a pleasant time to visit. Expect temperature fluctuations, with a minimum of 2°C (35°F) and a maximum of 31°C (88°F). However, be prepared for the occasional shower, as precipitation reaches 84 mm (3.3 in) over 11 days. The air remains quite humid, with an average humidity level of 81%.

September Temperature in Bothwell

In September in Bothwell, the average temperature is 18°C (65°F). Maximum temperatures can reach 31°C (88°F), while minimum temperatures can drop to as low as 2°C (35°F). This variation means that travelers should prepare for both warm days and cooler evenings during their visit.

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

The chart illustrates September temperature patterns in Bothwell, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Bothwell, September typically has an average temperature of 18°C (65°F), with highs reaching up to 31°C (88°F) and lows dropping to around 2°C (35°F).

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

September Precipitation in Bothwell

In Bothwell, in September, the precipitation amount is 84 mm (3.3 in) during a period of 11 days.

September Precipitation Trends in Bothwell

The chart displays monthly precipitation patterns in Bothwell, 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 Bothwell, September typically receives around 84 mm (3.3 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 Bothwell

In Bothwell in September, humidity is 81%. With an average temperature of 18°C (65°F), this humidity feels like a thick blanket wrapping around you, making every step feel heavier and the air thick and sultry—a challenging environment for traveling.

September Average Humidity in Bothwell

This chart illustrates the average monthly humidity levels in Bothwell, 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 Bothwell is approximately 81%, 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 Bothwell

In Bothwell 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 Bothwell.

Maximum UV Index Levels in Bothwell for September

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

Data source: Bothwell 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 Bothwell Compares to Other Months

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

This table compares monthly weather conditions in Bothwell, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-3°C (27°F)	70 mm (2.8 inches)	90%	moderate
February Weather	-3°C (28°F)	73 mm (2.9 inches)	90%	moderate
March Weather	2°C (35°F)	75 mm (3.0 inches)	87%	moderate
April Weather	7°C (44°F)	99 mm (3.9 inches)	87%	very high
May Weather	14°C (57°F)	101 mm (4.0 inches)	82%	very high
June Weather	20°C (68°F)	97 mm (3.8 inches)	81%	very high
July Weather	22°C (73°F)	98 mm (3.9 inches)	79%	very high
August Weather	22°C (71°F)	100 mm (3.9 inches)	80%	very high
September Weather	18°C (65°F)	84 mm (3.3 inches)	81%	very high
October Weather	12°C (54°F)	119 mm (4.7 inches)	84%	moderate
November Weather	4°C (40°F)	86 mm (3.4 inches)	88%	moderate
December Weather	0°C (33°F)	67 mm (2.7 inches)	87%	low