If you’re hoping to get lost in the rain on your romantic getaway, check out these details about year-round temperatures in Pamunugama: The hottest months are usually March and April with an average temp of 82°F, while the coldest months are January and February with an average of 80°F. The rainiest months in Pamunugama are October, May, November, and June, with each month seeing an average of 14 inches of rainfall.