Monsoon coast switching how to chase the sun across the island in June

Monsoon routing is literally my specialism so the working map The two monsoon system the southwest monsoon (Yala) runs roughly May to September bringing rain to the SOUTHWEST and the central hills the northeast monsoon (Maha) runs roughly October to January bringing rain to the NORTHEAST so at any time of year one half of the island is in its dry season the entire art is being on the right coast June position you are in the southwest monsoon so the southwest is the wet coast Galle Mirissa Hikkaduwa Bentota and the hills get the daily rain mostly afternoon while the EAST AND NORTH are gloriously dry right now Trincomalee Nilaveli Pasikuda Arugam Bay and Jaffna are in their sunshine window this is exactly backwards from the winter pattern The weather divide the central massif splits the island the hill country wrings the moisture out so the leeward dry zone north central and east stay clear while the windward southwest soaks the divide is not a clean line but the rule holds cross the mountains and the weather flips The June route that follows the sun land and do Colombo and a cultural triangle stretch (the dry zone north central is fine in June) then go EAST not south Trincomalee for the beach and diving Arugam Bay for the surf which peaks exactly now Jaffna for culture in its dry season Save the south coast and deep hill country for a return in the December to March window when they are at their best The hill country caveat the hills are wet but workable in June mornings often clear see the rain day playbook approach treat the hills as a morning activity zone passing through rather than a sit on the beach destination this season