Sarnia Weather in March
What's the weather like in Sarnia (Ontario) in March 2024?
The climate in Sarnia during March can be summarized as cool and reasonably dry.
March is in the spring in Sarnia and is typically the 4th coldest month of the year. Daytime maximum temperatures average around a cold 5°C (41°F), whilst at night -3°C (27°F) is normal.
| Daytime temperature | 4.9°C 40.7°F |
|---|---|
| Nightly temperature | -3.1°C 26.5°F |
| Average temperature | 0.9°C 33.6°F |
| Daily sunshine | 4.7 hrs |
| Avg rainfall | 63 mm 2.5 ins |
| Rainy days | 11 days |
| Sea temperature | 1.6°C 34.8°F |
| Humidity | 75% |
| Windspeed | 18.4kph 11 mph |
On average March is the 4th driest month of the year in Sarnia with around 63mm 2.5 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 11 days, although this may vary considerably.
On the flip side this corresponds to an average of 4.7 hours of sunshine per day.
March temperatures in Sarnia
March rainfall
March 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 March 2024.
Other monthly averages
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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