Summer begins in mid February and ends in May. Rainy season starts from mid May till October with North - Western wind. Average annual temperature is 27๐c with average of approximately 83% humidity all year round. Average annual rainfall is measured at 3,560 millimeters with evaporation rate of 1,708 millimeters per year. In rainy season, the national park will be closed during 16 May - 31 October every year for visitors safety.