April in Delta averages a daily high of 13.6°C with nights around 6.8°C. Expect roughly 12.8 wet days totalling 62mm. Demanding conditions — pack for it and plan indoor options.
Across the year, the best time to visit Delta is June–August.
Based on DELTA TSAWWASSEN BEACH, BC CA (8.7km), 1995–2024. 29 years of April data.