If you’re hoping to get lost in the rain on your romantic getaway, check out these details about year-round temperatures in Nuwara Eliya: The hottest months are usually April and March with an average temp of 68°F, while the coldest months are January and February with an average of 65°F. The rainiest months in Nuwara Eliya are October, November, May, and April, with each month seeing an average of 17 inches of rainfall.