June in Kaunas averages a daily high of 21.7°C with nights around 11.3°C. Expect roughly 13 wet days totalling 67.8mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Kaunas is May–September.
Based on KAUNAS, LH (5.3km), 1995–2024. 24 years of June data.