Taking the local weather in Sankt Andrae im Lungau 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 11°C, while the coldest months are January and February, with an average of -5°C. The rainiest months in Sankt Andrae im Lungau are August, July, June and May, with each month seeing an average of 180 mm of rainfall.