If you're looking for summer vibes, the best time to travel to Lappeenranta is in June, July and August, when the average temperature reaches 15.45 °C, while May, July and June are the 3 sunniest months of the year, with an average of 149.82 hours.
However, if you prefer colder temperatures, make sure you visit Lappeenranta during January, February or March to experience an average of -5.41 °C.
For those who don't care too much about temperatures, but want to avoid getting wet in the rain, it's important to avoid travelling during February, March and January, when the average precipitation in Lappeenranta is 4.15 mm, while the months of January, February and March are drier, with an average of 0 mm.