September in Wesel averages a daily high of 19.6°C with nights around 10.4°C. Expect roughly 12.5 wet days totalling 67.2mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Wesel is May–September.
Based on BOCHOLT, GM (19.1km), 1995–2024. 11 years of September data.