October in Deventer averages a daily high of 15°C with nights around 7°C. Expect roughly 14.1 wet days totalling 67.7mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Deventer is May–September.
Based on HEINO, NL (20.9km), 1995–2024. 29 years of October data.