the province falls under type ii climate of the philippines, characterized by rainfall distributed throughout the year, although there is a distinct rainy season which begins from the month of november and ends in march. however, the climatic behavior of the province for the past few years has shown variations wherein the onset of the rainy seasons no longer occurs on the usual time. months with low rainfall are from july to october with september as the driest month. wet months are from november to june with january as the wettest month.