Though weather is just one factor, it can really affect your travel plans, especially if you're planning an extended stay in Saravane. The hottest months are usually March and April with an average temp of 79°F, while the coldest months are January and December with an average of 73°F. The rainiest months in Saravane are September, July, August, and June, with each month seeing an average of 14 inches of rainfall.