When to Go
High Season $$$$
The sunniest, driest season in most of the country occurs from mid-December through April, with Christmas and Easter bracketing the busiest tourist season. March and April are sweltering in lowland areas, with temperatures in the arid North Pacific frequently exceeding 90ºF.
Low Season $
Afternoon showers kick in by May and last through November, with a brief drier season in June and July. Rain or not, North American and European summer vacations do increase the influx of visitors from June through August. Rains become heavy in September and October.
Value Season $$
The transition periods between rainy and dry seasons and back again make a marvelous time to visit Costa Rica. Visitor numbers are smaller and the threat of rain is minimal.