Taking the local weather in Khok Sai into account can help you maximise your time at the pool during your trip. The hottest months are usually June and May, 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 Khok Sai are November, December, October and January, with each month seeing an average of 330 mm of rainfall.