March in Toronto averages a daily high of 5.6°C with nights around -1.8°C. Expect roughly 12.2 wet days totalling 53.7mm. A hard month to visit for comfort alone.
Across the year, the best time to visit Toronto is June–September.
Based on TORONTO CITY, ON CA (4.4km), 1995–2024. 21 years of March data.