Although weather is just one factor, it can really affect your travel plans, especially when you are planning a longer stay in Sinnersdorf. The hottest months are usually July and August, with an average temperature of 15°C, while the coldest months are January and February, with an average of -1°C. The rainiest months in Sinnersdorf are July, May, June and August, with each month seeing an average of 178 mm of rainfall.