Taking the local weather in Viešvėnai into account can help you maximise your time at the pool during your trip. The hottest months are usually July and August, with an average temperature of 16°C, while the coldest months are January and February, with an average of -2°C. The snowiest months in Viešvėnai are January, February, December and April, with each month seeing an average of 35 cm of snowfall.