February in Ottawa South averages a daily high of -2.9°C with nights around -12.3°C. Expect roughly 11.9 wet days totalling 52.2mm. A hard month to visit for comfort alone.
Across the year, the best time to visit Ottawa South is May–September.
Based on OTTAWA CDA, ON CA (2.5km), 1995–2024. 27 years of February data.