Costa Rica is a tropical country located between 8 and 11 degrees north of the equator. It has twelve micro-climates, three different rainfall regimes, and many microclimates.
Costa Rica has a stable climate year round.
There are two well-defined seasons: the green season (Invierno) and the dry/summer season (Verano). The one main difference is rainfall averages.
The dry season runs from December to April and the green season from May to November. Rainfall averages for the country may reach the highest point during the months of September and October — approximately 650 mm per month. Seasonal changes don’t bring significant changes in temperatures. Although the nights may be fresher in some areas during the rainy season. Mornings are usually sunny all year round.