Quy Nhon's best stretch, when the last of the northeast monsoon fades and drier, sunnier days settle in. Late January onward is the most reliable window, the first few weeks of January can still catch a leftover soggy spell some years. By April the heat starts climbing hard, so this stretch is at its best before then.

This tier spans the hot half of the year. April carries on the dry season's low rainfall, but the heat builds hard heading into the hottest months. May through August see little rain and plenty of sun on paper, but temperatures regularly push into the mid-30s and beyond, with nights that barely cool off, so Ky Co and Eo Gio are best visited in the early morning. December still carries some of the last northeast monsoon rain, though it's markedly calmer than the months just before it.

The heart of the northeast monsoon, when rain turns torrential. October is the wettest month of the year by a wide margin, and November isn't far behind. Typhoon season also overlaps the tail of this stretch.