August in Zaanstad averages a daily high of 22.6°C with nights around 13.7°C. Expect roughly 12.9 wet days totalling 95.6mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Zaanstad is May–September.
Based on SCHIPHOL, NL (15.4km), 1995–2024. 30 years of August data.