April in Sarpsborg averages a daily high of 11.2°C with nights around 2.3°C. Expect roughly 9.1 wet days totalling 47.7mm. Demanding conditions — pack for it and plan indoor options.
Across the year, the best time to visit Sarpsborg is June–August.
Based on SARPSBORG, NO (0.3km), 1995–2024. 27 years of April data.