Weather is probably a major factor when you plan your trip to Isla Navidad, but bear in mind that cheaper options are usually available when the weather isn't as good. The hottest months are usually May and July, with an average temperature of 27°C, while the coldest months are January and February, with an average of 25°C. The rainiest months in Isla Navidad are September, August, October and June, with each month seeing an average of 207 mm of rainfall.