August in Vilnius averages a daily high of 23.4°C with nights around 12.5°C. Expect roughly 11.7 wet days totalling 63.1mm. Comfortable conditions for being outdoors all day.
Across the year, the best time to visit Vilnius is June–September.
Based on VILNIUS, LH (13.1km), 1995–2024. 24 years of August data.