August in Sarpsborg averages a daily high of 21.2°C with nights around 13.3°C. Expect roughly 12.1 wet days totalling 88.6mm. Comfortable conditions for being outdoors all day.
Across the year, the best time to visit Sarpsborg is June–August.
Based on SARPSBORG, NO (0.3km), 1995–2024. 28 years of August data.