September in Qui Nhon averages a daily high of 32.7°C. Expect roughly 15.5 wet days totalling 271.9mm. Demanding conditions — pack for it and plan indoor options.
Across the year, the best time to visit Qui Nhon is January–March.
Based on QUI NHON, VM (1.3km), 1995–2024. 17 years of September data.