Yes, but only if you research the bi-coastal climate. If you want guaranteed sun on the sand, fly into Colombo (CMB) and drive immediately to the East Coast (Trincomalee). If you want moody mountains and waterfalls, stay in the center. Do not go to the South/West beaches.
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. sri lanka wet season
Rating: ⭐⭐⭐ (3/5) – Not for beginners, but rewarding for planners. Yes, but only if you research the bi-coastal climate
Here is the honest breakdown of the "Yala" (Southwest) wet season. sri lanka wet season