DAILY CLIMATE REPORT - issued daily: Detailed daily weather statistics (usually for yesterday), including temperature, precipitation, degree days, wind, humidity, sunrise/sunset, and record temperature data for the following day.
In Costa Rica the average annual temperature is around 21 to 27 degrees Celsius or 70 to 81 degrees Fahrenheit and the coolest months of the year are November, December and January. The months March through May are the hottest months of the year, so make sure you protect yourself from the sun.
Costa Rica lies within the tropics, around ten degrees north of the equator. This means that days and nights are roughly the same lengths throughout the year. And that temperatures are based on elevation and microclimates rather than latitude. There are no seasons, no spring, summer, autumn, winter. Costa Rica has the wet season and the dry season.