Sarnia Weather in January
What's the weather like in Sarnia (Ontario) in January 2024?
The climate in Sarnia during January can be summarized as cold and reasonably dry.
January is in the winter in Sarnia and is typically the coldest month of the year. Daytime maximum temperatures average around a freezing -2°C (29°F), whilst at night -9°C (16°F) is normal.
| Daytime temperature | -1.7°C 28.9°F |
|---|---|
| Nightly temperature | -8.7°C 16.3°F |
| Average temperature | -5.2°C 22.6°F |
| Daily sunshine | 3.1 hrs |
| Avg rainfall | 57 mm 2.2 ins |
| Rainy days | 11 days |
| Sea temperature | 2.4°C 36.3°F |
| Humidity | 78% |
| Windspeed | 19.1kph 12 mph |
On average January is the 2nd driest month of the year in Sarnia with around 57mm 2.2 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 3.1 hours of sunshine per day.
January temperatures in Sarnia
January rainfall
January 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 January 2024.
Other monthly averages
Best places to visit in January
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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