The Philippines has a tropical climate dominated by rainy and dry seasons. The mean annual average temperature is about 27° C. The hottest months are April, May and June with average temperatures ranging from 27.8 to 28.4° C. The coldest months are December, January and February with average temperature ranging from 26.1° C to as low as 25.5° C.
The Philippines is divided into four climatic types, depending on how rainfall is distributed throughout the year (Figure 5).
Type 1 - Two pronounced seasons, wet and dry, with maximum rain period from June to September and a dry season which lasts from 3 to 6 months.
Type II - No dry season, with a very pronounced maximum rain period that occurs in December and January.
Type III - Not very pronounced maximum rain period, with a short dry season lasting from 1 to 3 months.
Type IV - Rainfall more or less distributed throughout the year.