April in Skien averages a daily high of 11.6°C with nights around 1.2°C. Expect roughly 10.7 wet days totalling 32.8mm. Demanding conditions — pack for it and plan indoor options.
Across the year, the best time to visit Skien is June–September.
Based on GVARV NES, NO (30.1km), 1995–2024. 27 years of April data.