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Get San Jose, Costa Rica typical December Weather including average and record temperatures from AccuWeather.com my recent locations Â°c San Jose, Costa Rica 27Â°
Keep reading to find the average temperatures during the month of December and learn about all of the cool events that take place in Costa Rica in that time. The Weather in Costa Rica Weather During the Month of December: December is the middle of the winter season for most of the northern countries. However during this time, Costa Rica experiences some of its best weather of the yearâjust in time for the Christmas holidays. The rainy season is officially over by the middle of November in most of the country.