August in Sint-Niklaas averages a daily high of 23.6°C with nights around 13°C. Expect roughly 12.4 wet days totalling 79.8mm. Comfortable conditions for being outdoors all day.
Across the year, the best time to visit Sint-Niklaas is May–September.
Based on WESTDORPE, NL (20.8km), 1995–2024. 30 years of August data.