January in Amersfoort averages a daily high of 6.2°C with nights around 1°C. Expect roughly 16.2 wet days totalling 74.4mm. A hard month to visit for comfort alone.
Across the year, the best time to visit Amersfoort is May–September.
Based on DE BILT, NL (15.5km), 1995–2024. 30 years of January data.