July in Windsor averages a daily high of 29.2°C with nights around 18.5°C. Expect roughly 10.8 wet days totalling 89.8mm. 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. 29 years of July data.