Guanacaste is the driest part of Costa Rica. If you are going late May early June-- unless you have the misfortune of having a tropical storm or hurricane off the coast of Nicaragua or Honduras you will probably have no more than a couple hours of rain a day and probably some days with no rain.
You are visiting a RAIN FORREST during RAINY SEASON!!!!
Yes, it will rain every day... that's not to say it will rain all day every day (it's too early in the season for that, although possible for 24/7 rain, that is rare in May/early June).
It might rain a little in the morning, and it will likely rain in late afternoon, every day.
The weather has been much dryer than average so you probably will get very little rain.
Here you'll find the exact weather in Guanacaste:
http://www.wunderground.com/weatherstati...
Will be there in 13 days for our honeymoon and forecast says all rain! Hope it's better than it's looking...
