Weather is probably a major factor when you plan your trip to Cagayancillo, but bear in mind that cheaper options are usually available when the weather isn't as good. The hottest months are usually April and May, with an average temperature of 28°C, while the coldest months are February and January, with an average of 27°C. The rainiest months in Cagayancillo are July, September, June and August, with each month seeing an average of 466 mm of rainfall.