Taking the local weather in Sainte-Gemme-en-Sancerrois 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 19°C, while the coldest months are February and January, with an average of 5°C. Average annual precipitation for Sainte-Gemme-en-Sancerrois is 860 mm.