Taking the local weather in Grünhain into account can help you maximise your time at the pool during your trip. The hottest months are usually August and July, with an average temperature of 14°C, while the coldest months are February and January, with an average of -2°C. The snowiest months in Grünhain are December, November, January and February, with each month seeing an average of 32 cm of snowfall.