Those seeking to head over to Anantaya Resort & Spa Chilaw should have an idea about the weather in Chilaw so as to enjoy an exciting and unforgettable coastal getaway. A tropical climate prevails in this part of the country but temperatures are known to range between 33 – 38 degrees Celsius during the months of January to April. The area is also subjected to high levels of rainfall which occur between October to December. Temperature generally subsides during this time as the city has been known to receive in excess of 250mm of rainfall within the above specified timeframe. A good time to come over to Chilaw would be between June to September when the humidity levels are at their lowest leading into the latter part of the year.