January in Neuwied averages a daily high of 3.7°C with nights around -0.7°C. Expect roughly 17.3 wet days totalling 75.1mm. A hard month to visit for comfort alone.
Across the year, the best time to visit Neuwied is June–September.
Based on HUMMERICH, GM (14.8km), 1995–2024. 21 years of January data.