January in Lappeenranta averages a daily high of -4.6°C with nights around -9.5°C. Expect roughly 14.4 wet days totalling 32.7mm. A hard month to visit for comfort alone.
Across the year, the best time to visit Lappeenranta is June–August.
Based on LAPPEENRANTA LEPOLA, FI (1.3km), 1995–2024. 17 years of January data.