April in Kiel averages a daily high of 12.7°C with nights around 3.8°C. Expect roughly 11.2 wet days totalling 40.9mm. Demanding conditions — pack for it and plan indoor options.
Across the year, the best time to visit Kiel is June–September.
Based on KIEL HOLTENAU, GM (6.1km), 1995–2024. 24 years of April data.