If you’re looking forward to lots of outings with your partner, take a look at these details about year-round temperatures in Playa Naranjo: The hottest months are usually March and February, with an average temperature of 27°C, while the coldest months are January and December, with an average of 26°C. The rainiest months in Playa Naranjo are October, August, June and July, with each month seeing an average of 493 mm of rainfall.