Climate: Sri Lanka’s location, just north of the equator, guarantees a warm tropical climate. In the low-lying coastal regions, the average annual temperature is 27˚C. Seawater temperatures are warm and vary little throughout the year. Changes of more than a few degrees cooler or warmer are an exception. The temperature is cooler in the mountains.
Best time to travel: The entire year is good, but for the southwest coast the best time to visit is from November to April. Whenever you go, you will have both sun and tropical rain showers, which are mostly considered very refreshing. The monsoon, from May to August, brings more rain than normal in the south-western coastal region. In these months, the sea can be rather wild, which makes it hard to swim and impossible to dive.