Gravenhurst Weather in September
What's the weather like in Gravenhurst (Ontario) in September 2024?
The climate in Gravenhurst during September can be summarized as mild and damp.
September is in the fall / autumn in Gravenhurst and is typically the 4th warmest month of the year. Daytime maximum temperatures average around 19°C (67°F), whilst at night 8°C (46°F) is normal.
| Daytime temperature | 19.2°C 66.6°F |
|---|---|
| Nightly temperature | 8°C 46.4°F |
| Average temperature | 13.6°C 56.5°F |
| Daily sunshine | 5.8 hrs |
| Avg rainfall | 105 mm 4.1 ins |
| Rainy days | 13 days |
| Sea temperature | 18.4°C 65°F |
| Humidity | 80% |
| Windspeed | 12.6kph 8 mph |
On average September is the 3rd wettest month of the year in Gravenhurst with around 105mm 4.1 inches of rain making it a damp time to visit. This rainfall is typically spread over 13 days, although this may vary considerably.
On the flip side this corresponds to an average of 5.8 hours of sunshine per day.
September temperatures in Gravenhurst
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 Gravenhurst in September 2024.
Other monthly averages
Best places to visit in September
Gravenhurst weather stats
| Hottest month: | July | 25.2°C 77.4°F |
|---|---|---|
| Driest month: | March | 68mm 2.7ins |
| Sunniest month: | July | 10.1hrs |
| Coldest month: | January | -4.9°C 23.2°F |
| Wettest month: | November | 111mm 4.4ins |
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