Best Time To Visit Anuradhapura

April sits inside what most itineraries call the dry season, and it is the fourth-wettest month of the year. It is also the hottest by daily average.

It is the busiest month too. Sinhala and Tamil New Year falls in April and fills domestic travel, so you get heat, rain and crowds arriving together.

May is where the rain drops away sharply, as the southwest monsoon soaks the other side of the island and leaves the dry zone alone.

The heat does not drop. Days run into the mid thirties from here through September, so start before eight and be finished by mid-morning.

June is the driest month of the year, taking under a tenth of what falls in November. July is second driest.

Poson Poya falls in June and is the big one here. It marks the arrival of Buddhism in Sri Lanka, and the focal celebrations are at Anuradhapura and Mihintale. In 2026 it falls on 29 June.

August and September stay dry and are much quieter than the January window. September is the last month before the rain turns.

The nights give no relief. Minimum temperatures sit around twenty-five degrees right through this stretch, so an air-conditioned room matters more here than it does in January.

November is the wettest month of the year, with October and December close behind. Between them these three months carry more than half of Anuradhapura's annual rainfall.

Unduvap Poya falls in December, marking the Bodhi sapling planted at the Sri Maha Bodhi here, where the tree still stands. In 2026 it falls on 23 December, in a wet month.

Anuradhapura sits in the dry zone, so its rain comes from the northeast monsoon rather than the southwest one. That makes its calendar the reverse of Galle, Mirissa and the southern beaches.

The swap fails in October and November, though. The second inter-monsoon soaks the whole island at once, so a ruins-and-south-coast trip has no good option in those two months.