Vermilion Weather in September
What's the weather like in Vermilion (Alberta) in September 2025?
The climate in Vermilion during September can be summarized as mild and reasonably dry.
September is in the fall / autumn in Vermilion and is typically the 5th warmest month of the year. Daytime maximum temperatures average around a cool 17°C (62°F), whilst at night 4°C (38°F) is normal.
| Daytime temperature | 16.5°C 61.6°F |
|---|---|
| Nightly temperature | 3.6°C 38.4°F |
| Average temperature | 10°C 50°F |
| Daily sunshine | 6.5 hrs |
| Avg rainfall | 37 mm 1.5 ins |
| Rainy days | 9 days |
| Sea temperature | 10.5°C 50.9°F |
| Humidity | 72% |
| Windspeed | 13.3kph 8 mph |
On average September is the 5th wettest month of the year in Vermilion with around 37mm 1.5 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 6.5 hours of sunshine per day.
September temperatures in Vermilion
September rainfall
September hourly sunshine
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 Vermilion in September 2025.
Other monthly averages
Best places to visit in September
Vermilion weather stats
| Hottest month: | July | 22.6°C 72.7°F |
|---|---|---|
| Driest month: | February | 13mm 0.5ins |
| Sunniest month: | August | 9.5hrs |
| Coldest month: | January | -11.8°C 10.8°F |
| Wettest month: | July | 79mm 3.1ins |
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