April in Welland averages a daily high of 12.7°C with nights around 1.6°C. Expect roughly 12.9 wet days totalling 78.1mm. Demanding conditions — pack for it and plan indoor options.
Across the year, the best time to visit Welland is May–September.
Based on WELLAND PELHAM, ON CA (7.1km), 1995–2024. 19 years of April data.