The wet season (primarily May-July for the southwest, and October-January for the northeast) rarely means all-day, non-stop rain. You will usually get:
If you look at a weather forecast for Sri Lanka in June and see rain every day, don't cancel your flight. The secret to the Sri Lankan wet season is . You aren't stuck in one week of bad weather; you have the unique ability to simply drive to the sunshine.
The wet season in Sri Lanka has both positive and negative effects on the country.
While the wet season affects the entire island, some regions experience more rainfall than others. The southwest and central parts of the country receive the most rainfall, with some areas receiving over 3,000 mm of rain during the wet season. The northern and eastern parts of the country experience relatively less rainfall, with some areas receiving less than 1,000 mm.
This season brings heavy rainfall and strong winds to the south and west coasts , as well as the Hill Country . Cities like Colombo, Galle, and Nuwara Eliya experience frequent downpours during this time.

