Go Visit Costa Rica: Climate There is no “winter” to speak of Learn more at govisitcostarica.com govisitcostarica.com/travelInfo/climate.asp where the average annual temperature is 81 degrees Learn more at govisitcostarica.com where the average annual temperature is 81 degrees where the average annual temperature is 81 degrees more... this chart Learn more at govisitcostarica.com There is no “winter” to speak of