Weather is probably a major factor when you plan your trip to Quepos, but bear in mind that cheaper options are usually available when the weather isn't as good. The hottest months are usually March and April, with an average temperature of 25°C, while the coldest months are January and December, with an average of 24°C. The rainiest months in Quepos are October, August, July and June, with each month seeing an average of 1054 mm of rainfall.