January in Fredrikstad averages a daily high of 1.2°C with nights around -4.7°C. Expect roughly 9.5 wet days totalling 47.5mm. A hard month to visit for comfort alone.
Across the year, the best time to visit Fredrikstad is June–August.
Based on RADE TOMB, NO (12.7km), 1995–2024. 11 years of January data.