The climate in Guanacaste is tropical, with an average annual temperature of 28°C. Guanacaste is a hot destination, reaching up to 36°C in April, so it is recommended to pack light clothing, sunscreen, sunglasses, and a hat to protect yourself from the sun. From December to January, the lowest temperatures of the year occur, making it a cooler season for traveling, with an average temperature of 21°C during this time.