The climate of the area is a humid tropical monsoon climate with no pronounced maximum rain period and no dry season (Type 4 of the Coronas climatic classification). It has an average annual rainfall ranging from 2600 mm in the coastal lowland, to more than 3000 mm at higher elevations. Average temperature in the plain is 27 degrees Celsius which decreases by an average of 0.6 degree Celsius per 100 m rise in elevation (i.e. at 500 m elevation, the average temperature is 24 degrees Celsius). Two types of monsoon winds tremendously influence the over-all climate of the area. From June to October, a southwest monsoon (Habagat) occurs which enhances rainfall in the area (western side of mountain). From November to February, the northeast monsoon (Amihan) follows which generally coincides with cyclonic disturbances thereby bringing plenty of rain particularly to the eastern side of the mountain range.