April in Windsor averages a daily high of 14.8°C with nights around 4.1°C. Expect roughly 12.7 wet days totalling 82.6mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Windsor is May–June.
Based on WINDSOR RIVERSIDE, ON CA (7.8km), 1995–2024. 30 years of April data.