Visiting local bars in Yanam is more fun in good weather. These rainfall averages and temperatures can help you choose the best time for bar hopping. The hottest months are usually May and April with an average temp of 87°F, while the coldest months are January and December with an average of 77°F. The rainiest months in Yanam are July, September, August, and June, with each month seeing an average of 11 inches of rainfall.