August in Amersfoort averages a daily high of 23.1°C with nights around 12.7°C. Expect roughly 13 wet days totalling 82.9mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Amersfoort is May–September.
Based on DE BILT, NL (15.5km), 1995–2024. 30 years of August data.