Sarnia Weather in October
What's the weather like in Sarnia (Ontario) in October 2024?
The climate in Sarnia during October can be summarized as mild and reasonably dry.
October is in the fall / autumn in Sarnia and is typically the 6th warmest month of the year. Daytime maximum temperatures average around a cool 16°C (60°F), whilst at night 6°C (44°F) is normal.
| Daytime temperature | 15.6°C 60.1°F |
|---|---|
| Nightly temperature | 6.4°C 43.5°F |
| Average temperature | 11°C 51.8°F |
| Daily sunshine | 5.5 hrs |
| Avg rainfall | 60 mm 2.3 ins |
| Rainy days | 10 days |
| Sea temperature | 15.1°C 59.1°F |
| Humidity | 75% |
| Windspeed | 15.1kph 9 mph |
On average October is the 3rd driest month of the year in Sarnia with around 60mm 2.3 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 10 days, although this may vary considerably.
On the flip side this corresponds to an average of 5.5 hours of sunshine per day.
October temperatures in Sarnia
October rainfall
October 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 Sarnia in October 2024.
Other monthly averages
Best places to visit in October
Sarnia weather stats
| Hottest month: | July | 26.5°C 79.7°F |
|---|---|---|
| Driest month: | February | 54mm 2.1ins |
| Sunniest month: | July | 9.9hrs |
| Coldest month: | January | -1.9°C 28.6°F |
| Wettest month: | June | 82mm 3.2ins |
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