December in Újpest averages a daily high of 4.8°C with nights around 0°C. Expect roughly 8.9 wet days totalling 40.8mm. A hard month to visit for comfort alone.
Across the year, the best time to visit Újpest is April–June.
Based on BUDAPEST, HU (8km), 1995–2024. 30 years of December data.