May in Phú Quốc averages a daily high of 31.8°C. Expect roughly 16.8 wet days totalling 258.2mm. Demanding conditions — pack for it and plan indoor options.
Across the year, the best time to visit Phú Quốc is December–February.
Based on PHU QUOC, VM (9.1km), 1995–2024. 14 years of May data.