Sarnia
March
Weather in Sarnia for March 2026
Your guide to Sarnia weather in March - trends and predictions
The climate of Sarnia in March is quite snowy, averaging 14 snowy days.
In general, the average temperature in Sarnia at the beginning of March is 4.7 °C. As the month progressed, temperatures tended to significantly warm up, reaching an average of 7.9 °C by the end of March.
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Snow Forecast ❄️
Temperatures
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9
Dry days
8
Rainy days
14
Snow days
5°/-1°
Temperatures
28 km/h
Avg max wind
77 %
Avg humidity
Sarnia Weather March
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| Sun. | Mon. | Tue. | Wed. | Thu. | Fri. | Sat. |
|---|---|---|---|---|---|---|
| 1  4° | 2  2° | 3  6° | 4 6° | 5 8° | 6  3° | 7 4° |
| 8 4° | 9 6° | 10  4° | 11  5° | 12 7° | 13  6° | 14  8° |
| 15 9° | 16 9° | 17  6° | 18 4° | 19 8° | 20 7° | 21 6° |
| 22 5° | 23  5° | 24 3° | 25  8° | 26 7° | 27 7° | 28 6° |
| 29 8° | 30  10° | 31 9° |
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Temperatures trend during March in Sarnia
See the weather trend as well as the moving average line
March weather day by day
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| Date | Weather | Temperatures | Rain | Snow | More |
|---|---|---|---|---|---|
| 1 Mar. | Overcast | 4° /-3° | 0.4 mm | 0 cm | |
| 2 Mar. | Light snow | 2° /-3° | 0.3 mm | 0 cm | |
| 3 Mar. | Partly cloudy | 6° /-2° | 1.2 mm | 0.5 cm | |
| 4 Mar. | Overcast | 6° /2° | 18.3 mm | 1.4 cm | |
| 5 Mar. | Light snow | 8° /2° | 19.9 mm | 0 cm | |
| 6 Mar. | Light rain shower | 3° /-1° | 5 mm | 2.5 cm | |
| 7 Mar. | Partly cloudy | 4° /-1° | 0.5 mm | 0.1 cm | |
| 8 Mar. | Overcast | 4° /-1° | 2.8 mm | 0 cm | |
| 9 Mar. | Overcast | 6° /0° | 9.1 mm | 0.5 cm | |
| 10 Mar. | Heavy snow | 4° /-1° | 12.2 mm | 1.6 cm | |
| 11 Mar. | Light snow showers | 5° /-2° | 0.2 mm | 0 cm | |
| 12 Mar. | Overcast | 7° /-1° | 0.3 mm | 0.3 cm | |
| 13 Mar. | Moderate or heavy snow showers | 6° /1° | 0.8 mm | 0.3 cm | |
| 14 Mar. | Blowing snow | 8° /1° | 2.8 mm | 0 cm | |
| 15 Mar. | Partly cloudy | 9° /1° | 4 mm | 0 cm | |
| 16 Mar. | Patchy rain possible | 9° /0° | 38 mm | 2.3 cm | |
| 17 Mar. | Light rain | 6° /-1° | 4.6 mm | 0.1 cm | |
| 18 Mar. | Light snow | 4° /-2° | 0.2 mm | 0.1 cm | |
| 19 Mar. | Light snow showers | 8° /-1° | 0 mm | 0 cm | |
| 20 Mar. | Overcast | 7° /-2° | 0 mm | 0 cm | |
| 21 Mar. | Overcast | 6° /-3° | 0.3 mm | 0.2 cm | |
| 22 Mar. | Light drizzle | 5° /-2° | 2.8 mm | 0.7 cm | |
| 23 Mar. | Moderate or heavy rain with thunder | 5° /-3° | 11 mm | 2.8 cm | |
| 24 Mar. | Overcast | 3° /-2° | 1.3 mm | 0 cm | |
| 25 Mar. | Moderate or heavy freezing rain | 8° /-1° | 9 mm | 0 cm | |
| 26 Mar. | Overcast | 7° /0° | 2.4 mm | 0 cm | |
| 27 Mar. | Heavy snow | 7° /0° | 6.6 mm | 3.5 cm | |
| 28 Mar. | Overcast | 6° /-1° | 0 mm | 0 cm | |
| 29 Mar. | Heavy snow | 8° /1° | 2.2 mm | 0.6 cm | |
| 30 Mar. | Moderate rain | 10° /2° | 9 mm | 0 cm | |
| 31 Mar. | Moderate rain | 9° /0° | 6 mm | 0 cm | |
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Important Notice
Our weather forecast for Sarnia in March is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Sarnia forecast closer to your planned date for the most up-to-date weather information.
Sarnia in March - FAQ
What are the expected maximum and minimum temperatures in Sarnia during March?
Brace for cold days with temperatures not exceeding 5° and nights that are likely to be freezing. Winter clothing is essential for comfort and safety.
How much rainfall should be expected in Sarnia during March?
Significant rainfall exceeding 155.4 mm is expected in Sarnia during March, occurring over more than 8 days. Preparing for wet conditions is recommended in your planning.
Will it snow in Sarnia in March 2026?
Sarnia experiences an average snowfall of 16.7717 cm during March, occurring over 14 days.
What are the typical wind conditions in Sarnia during March?
The average wind speed in Sarnia during March is 28 km/h, suggesting breezy to windy conditions, depending on your activities.
Sarnia snow forecast March 2026
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March rainfall patterns in Sarnia
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