The climate in Brampton during September can be summarized as mild and reasonably dry.
September is in the fall / autumn in Brampton and is typically the 4th warmest month of the year. Daytime maximum temperatures average around 21°C (69°F), whilst at night 9°C (48°F) is normal.
| Daytime temperature | 20.6°C 69.1°F | 
|---|---|
| Nightly temperature | 9°C 48.2°F | 
| Average temperature | 14.8°C 58.6°F | 
| Daily sunshine | 6.2 hrs | 
| Avg rainfall | 75 mm 2.9 ins | 
| Rainy days | 9 days | 
| Sea temperature | 19.1°C 66.4°F | 
| Humidity | 77% | 
| Windspeed | 11.9kph 7 mph | 
On average September is the 2nd wettest month of the year in Brampton with around 75mm 2.9 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 9 days, although this may vary considerably.
On the flip side this corresponds to an average of 6.2 hours of sunshine per day.
 
				 
						 
						The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in Brampton in September 2025.
Best places to visit in September
| Hottest month: | July | 26.3°C 79.3°F | 
|---|---|---|
| Driest month: | February | 46mm 1.8ins | 
| Sunniest month: | July | 10hrs | 
| Coldest month: | January | -3.5°C 25.7°F | 
| Wettest month: | August | 88mm 3.5ins | 
 
	 
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