Visiting local bars in Marienfluss is better when you know what the weather holds. These temperatures and rainfall averages can help you determine the best time for bar hopping. The hottest months are usually September and October with an average temp of 68°F, while the coldest months are June and July with an average of 64°F. The rainiest months in Marienfluss are March, November, December, and January, with each month seeing an average of 16 inches of rainfall.