September is Phu Quoc's most challenging month. European summer holidays have ended, Vietnamese school break is over, and the southwest monsoon delivers its heaviest rainfall of the season. Long Beach can be rough for days at a time, some resorts partially close for maintenance, and the An Thoi Islands boat trips are largely suspended. Accommodation prices hit their yearly absolute low. The national park, interior attractions, and Sao Beach (on calmer mornings) are the main activities. It's for flexible, independent travellers who see the empty island as the appeal.
24–31°C (75–88°F)
Air temp
28°C (82°F)
Sea temp
Extreme
Rainfall
Low
Crowds
why go
what's on
No major events
September is Phu Quoc's quietest month for events. Local Vietnamese community life continues but no major tourist festivals.
travel tips
September is not recommended for most travellers. If cost is the overriding factor and you're genuinely flexible about beach access, the savings are real — a 4-star resort can cost less than a budget guesthouse in January.
If visiting in September, stay in a resort with a good pool — the sea can be too rough to swim for days at a time, but a pool provides a reliable alternative.
The Dinh Cau Night Market operates year-round in reduced form — worth visiting for fresh grilled seafood at Phu Quoc's lowest prices when the tourist volume is minimal.
common questions
Only if budget is the primary constraint and you're completely flexible about itinerary. Sea conditions are the worst of the year, most An Thoi Islands boat trips are suspended, and rain is frequent and heavy. The 30-day visa exemption makes it easy to visit, and the prices are genuinely remarkable. For those who want a quiet, cheap island base and don't need beach perfection, it works.
September is Phu Quoc's wettest month — typically 300–350mm of rainfall spread over 20–25 rainy days. Heavy afternoon downpours are common, and even mornings can bring rain. The Gulf of Thailand is rough, with swell and wind making Long Beach uninviting. It's the most challenging month weather-wise.
Very cheap. Budget guesthouses near Long Beach cost 200,000–400,000 VND/night (USD 8–16). Mid-range hotels drop to 400,000–800,000 VND. 4-star beachfront resorts can be found for 1,200,000–2,000,000 VND (USD 48–80) — prices that would be USD 200–400 in January. The savings are one of the most dramatic low-season discounts in Southeast Asia.
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