October in Zeist averages a daily high of 15.3°C with nights around 7.5°C. Expect roughly 14.7 wet days totalling 83.9mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Zeist is May–September.
Based on DE BILT, NL (3.8km), 1995–2024. 30 years of October data.