Costa Rica Weather In January 2025. Generally, january in costa rica will be quite hot, with an average temperature of around 91°f / 33°c. Costa rica is considered one of the most biodiverse places on earth, with its rainforests, volcanoes, national parks, and beautiful beaches full of exotic wildlife.
As the year kicks off in san josé, costa rica, balmy temperatures and moderate rainfall set the stage for a tropical climate. Average monthly weather with temperature, pressure, humidity, precipitation, wind, daylight, sunshine, visibility, and uv index.
