Taking the local weather in Sammaattiwadiya into account can help you maximise your time at the pool during your trip. The hottest months are usually March and April, with an average temperature of 28°C, while the coldest months are January and February, with an average of 26°C. The rainiest months in Sammaattiwadiya are November, October, May and December, with each month seeing an average of 265 mm of rainfall.