If you're hoping to get lost in the rain on your romantic getaway, check out these details about year-round temperatures in Valparai: The hottest months are usually March and April with an average temp of 75°F, while the coldest months are January and February with an average of 72°F. The rainiest months in Valparai are July, August, June, and October, with each month seeing an average of 22 inches of rainfall.