Time Out says
Beaches of Tangalle are made for the visual admirer.
Hidden deep in the southern coast, the beaches of Tangalle are made for the visual admirer. With the ocean set in dark blue and you with a fresh drink in your hand ready for a relaxing stay, then you would be in the right place.
If you do fancy a spot of sea bathing then head west of Tangalle town to where a few naturally secured bays between rocky promontories caress calmer waters. Sunbathing on the other hand is recommend for the east part of town where the warm sandy beaches are far too irresistible to pass on a tan.
Take the Southern Expressway to Tangalle to cut your journeying time by half and be sure to keep these months in mind; November to April and May through October, for best climatic conditions.