January in Sarpsborg averages a daily high of 0.9°C with nights around -3.9°C. Expect roughly 13.9 wet days totalling 77.1mm. A hard month to visit for comfort alone.
Across the year, the best time to visit Sarpsborg is June–August.
Based on SARPSBORG, NO (0.3km), 1995–2024. 27 years of January data.