January in Kaunas averages a daily high of -0.7°C with nights around -5.5°C. Expect roughly 15.7 wet days totalling 46.7mm. A hard month to visit for comfort alone.
Across the year, the best time to visit Kaunas is May–September.
Based on KAUNAS, LH (5.3km), 1995–2024. 16 years of January data.