October in Vedanthangal is the build-up month before the season reopens. The NE monsoon arrives in force from mid-month — 250-350mm of rain across 11-13 wet days recharges the 30-hectare tank rapidly. By the third week of October, tank level hits 70-90 percent capacity and the Barringtonia acutangula stands stand at the year's most lush. The first migratory waterbird arrivals typically come late October — painted storks beginning to depart Bharatpur and the Gangetic plain, ibises and openbills following. TN Forest Department conducts pre-reopening surveys mid-October; the sanctuary typically reopens for visitors in the first or second week of November once the resident-and-migratory population reaches a critical breeding-population threshold (~15,000 birds). Daytime 25-31C, humidity 80 percent. The Cyclone watch on the Coromandel coast begins from October 1 — IMD monitors Bay of Bengal lows. For birders looking to arrive at first-reopening: monitor TN Forest Department announcements via forests.tn.gov.in. The strong call: aim for mid-November onward.

Why October scores 4.0/10