If you’re looking forward to lots of outings with your partner, check out these details about year-round temperatures in Sreemangal: The hottest months are usually April and March with an average temp of 81°F, while the coldest months are January and December with an average of 69°F. The rainiest months in Sreemangal are May, June, August, and July, with each month seeing an average of 16 inches of rainfall.