Visiting Costa Rica in May
A very slow month in tourism comes after the peak high season in March in April. If you have the time you can often find good prices and not a lot of touristy traffic in and around where you might be visiting.
May is a beautiful month with often some rain and trees and everything is starting to get the green glow going as they begin to gulp up the rain. There is still plenty of dry time to enjoy some sun on the beach and do the zipline without a torrential down pour.