January in Iaşi averages a daily high of 1.5°C with nights around -5°C. Expect roughly 9.1 wet days totalling 29.3mm. A hard month to visit for comfort alone.
Across the year, the best time to visit Iaşi is May–June.
Based on IASI, RO (2.5km), 1995–2024. 30 years of January data.