If you’re looking forward to lots of outings with your partner, check out these details about year-round temperatures in Mannarkkad: The hottest months are usually March and April with an average temp of 82°F, while the coldest months are January and December with an average of 76°F. The rainiest months in Mannarkkad are June, July, August, and October, with each month seeing an average of 16 inches of rainfall.