August in Neuwied averages a daily high of 22.7°C with nights around 13°C. Expect roughly 14.2 wet days totalling 86.9mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Neuwied is June–September.
Based on HUMMERICH, GM (14.8km), 1995–2024. 21 years of August data.