Sarnia
March
Weather in Sarnia for March 2025
Your guide to Sarnia weather in March - trends and predictions
In general, the average temperature in Sarnia at the beginning of March is 5.9 °C. As the month progressed, temperatures tended to moderately rise, reaching an average of 7 °C by the end of March.
Sarnia sees moderate rainfall in March, averaging 6 rainy days.
Snowfall in Sarnia during March is quite rare, with fewer than 2 snowy days on average.
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24
Dry days
6
Rainy days
1
Snow days
8°/-2°
Temperatures
28 km/h
Avg max wind
78 %
Avg humidity
Sarnia in March average weather
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| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  6° | 2  5° | |||||
| 3  7° | 4  8° | 5 8° | 6  2° | 7  5° | 8 5° | 9 6° |
| 10  1° | 11  4° | 12  7° | 13  6° | 14  6° | 15  6° | 16 8° |
| 17 6° | 18 0° | 19 5° | 20 4° | 21 5° | 22 4° | 23  6° |
| 24 3° | 25  10° | 26 9° | 27 5° | 28 6° | 29 6° | 30 6° |
| 31  7° |
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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. | Light drizzle | 6° /-1° | 0.6 mm | 0 cm | |
| 2 Mar. | Light snow | 5° /1° | 0.5 mm | 0 cm | |
| 3 Mar. | Ice pellets | 7° /1° | 1.9 mm | 0.7 cm | |
| 4 Mar. | Overcast | 8° /3° | 0.1 mm | 0 cm | |
| 5 Mar. | Light snow | 8° /2° | 3.4 mm | 0 cm | |
| 6 Mar. | Light rain shower | 2° /0° | 3.2 mm | 2.2 cm | |
| 7 Mar. | Blizzard | 5° /0° | 0.7 mm | 0.1 cm | |
| 8 Mar. | Overcast | 5° /0° | 4.1 mm | 0 cm | |
| 9 Mar. | Overcast | 6° /0° | 13.6 mm | 0.8 cm | |
| 10 Mar. | Heavy snow | 1° /-1° | 18.2 mm | 2.4 cm | |
| 11 Mar. | Light snow showers | 4° /-3° | 0.3 mm | 0 cm | |
| 12 Mar. | Moderate snow | 7° /-1° | 0.4 mm | 0.4 cm | |
| 13 Mar. | Moderate or heavy snow showers | 6° /2° | 1.2 mm | 0.5 cm | |
| 14 Mar. | Blowing snow | 6° /1° | 4.2 mm | 0 cm | |
| 15 Mar. | Partly cloudy | 6° /-2° | 0.1 mm | 0 cm | |
| 16 Mar. | Patchy rain possible | 8° /0° | 3.1 mm | 0 cm | |
| 17 Mar. | Light rain | 6° /0° | 6.9 mm | 0.2 cm | |
| 18 Mar. | Light snow | 0° /-3° | 0.3 mm | 0.2 cm | |
| 19 Mar. | Light snow showers | 5° /-4° | 0.1 mm | 0.1 cm | |
| 20 Mar. | Overcast | 4° /-3° | 0 mm | 0 cm | |
| 21 Mar. | Overcast | 5° /-3° | 0.4 mm | 0.3 cm | |
| 22 Mar. | Light drizzle | 4° /-1° | 4.2 mm | 1.1 cm | |
| 23 Mar. | Moderate or heavy rain with thunder | 6° /-2° | 10.9 mm | 0.2 cm | |
| 24 Mar. | Overcast | 3° /-3° | 0 mm | 0 cm | |
| 25 Mar. | Moderate or heavy freezing rain | 10° /-1° | 13.5 mm | 0 cm | |
| 26 Mar. | Overcast | 9° /2° | 3.7 mm | 0 cm | |
| 27 Mar. | Heavy snow | 5° /0° | 9.9 mm | 5.3 cm | |
| 28 Mar. | Overcast | 6° /-1° | 0 mm | 0 cm | |
| 29 Mar. | Heavy snow | 6° /-1° | 3.2 mm | 0.9 cm | |
| 30 Mar. | Partly cloudy | 6° /-1° | 3.7 mm | 0 cm | |
| 31 Mar. | Moderate rain | 7° /0° | 9 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?
Prepare for cooler days with highs just around 8° and colder nights, dipping below -2°.
How much rainfall should be expected in Sarnia during March?
Significant rainfall exceeding 243 mm is expected in Sarnia during March, occurring over more than 6 days. Preparing for wet conditions is recommended in your planning.
Is snowfall common in Sarnia during March?
Sarnia experiences an average snowfall of 30.6 cm during March, occurring over 1 days, which may interest winter sports enthusiasts.
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.
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