Weather will likely play an important role when you plan your trip to Cahuita, but bear in mind that cheaper options are usually available when the weather isn't as good. The hottest months are usually September and May, with an average temperature of 26°C, while the coldest months are January and February, with an average of 24°C. The rainiest months in Cahuita are July, November, June and August, with each month seeing an average of 524 mm of rainfall.