December in Piatra Neamţ averages a daily high of -3.1°C with nights around -8.2°C. Expect roughly 9.6 wet days totalling 31.4mm. A hard month to visit for comfort alone.
Across the year, the best time to visit Piatra Neamţ is July–August.
Based on CEAHLAU TOACA, RO (31.4km), 1995–2024. 30 years of December data.