 Ingiriya falls within the Low Country Wet Zone and has a medium climate, with to of annual rainfall, coming from both east–west monsoons (mid-November to January) and southwest monsoons (mid-May to mid-September).Ingiriya is prone to flooding.The Kalu River overflows into the areas of Nambapana, Eastern and Western Urugala, Western Ingiriya town, Wagawatta, Kekulaliya, Western Poruwadanda and Dombagaskanda.