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March in Oakville averages a daily high of 4.9°C with nights around -1.7°C. Demanding conditions — pack for it and plan indoor options.
Across the year, the best time to visit Oakville is June–September.
Based on BURLINGTON PIERS AUT, ON CA (19.2km), 1995–2024. 30 years of March data.
See all twelve months for Oakville →