April in Lisburn averages a daily high of 11.8°C with nights around 3.9°C. Expect roughly 14.3 wet days totalling 55.6mm. Demanding conditions — pack for it and plan indoor options.
Across the year, the best time to visit Lisburn is June–September.
Based on HILLSBOROUGH, UK (8.3km), 1995–2024. 22 years of April data.