April in Grimsby averages a daily high of 13.3°C with nights around 4.3°C. Expect roughly 10.9 wet days totalling 44.1mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Grimsby is June–September.
Based on WADDINGTON, UK (59.6km), 1995–2024. 30 years of April data.