October in Welland averages a daily high of 15.6°C with nights around 6°C. Expect roughly 13.8 wet days totalling 90.5mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Welland is May–September.
Based on WELLAND PELHAM, ON CA (7.1km), 1995–2024. 18 years of October data.