Weather is probably a major factor when you plan your trip to Pelabuhan Ratu, but bear in mind that cheaper options are usually available when the weather isn't as good. The hottest months are usually September and August, with an average temperature of 25°C, while the coldest months are July and August, with an average of 25°C. The rainiest months in Pelabuhan Ratu are December, November, March and April, with each month seeing an average of 467 mm of rainfall.