Phu Quoc Weather by Month: Seasons, Rain & Planning Tips

Featured image: trungydang, CC BY 3.0, via Wikimedia Commons.

Phu Quoc Weather at a Glance

Phu Quoc sits in the Gulf of Thailand and stays warm all year. Dry-season days commonly run 25–28°C (77–82°F), while wet-season days run about 26–30°C (79–86°F). Annual rainfall is often quoted near 3,000 mm, and humidity climbs from about 78% in the dry season to 85–90% in the wet season. Published ranges differ between sources, so check the national forecasts from the Vietnam meteorological service for current readings. Weather figures here were last checked November 2026.

How the Monsoon Works on the Island

Two wind regimes drive Phu Quoc's climate. The northeast monsoon brings the drier months. The southwest monsoon pushes moist air across the Gulf of Thailand and drives the wetter months. Some sources report heavier rain in the north of the island, up to 4,000 mm a year. Treat that as indicative rather than measured. Start and end dates shift from year to year, so no single calendar date is a reliable cut-off.

Dry Season, About November to April

Expect sunny skies, calmer seas and the clearest water around the An Thoi Archipelago. Heat builds toward April, and peaks of 35°C (95°F) are reported in April and May. Sunset at Long Beach and snorkeling off Hon Thom are most reliable now. Resorts at Bai Sao fill early, so book accommodation and boat tours well ahead. Read the December conditions for the start of the peak and the January weather for the middle of it.

Wet Season, About May to October

Rain usually arrives as short, heavy bursts, often 30 minutes to an hour, rather than all-day rain. Seas turn rougher, so boat trips to the An Thoi islands can be delayed or cancelled. Dirt roads toward Ganh Dau and the north of the island get muddy. Mosquitoes increase, while Suoi Tranh waterfall runs fuller. Prices are likely lower but not guaranteed. For a longer breakdown, see what the rains do to trips.

Month-by-Month Weather Scan

Labels below are broad patterns, not forecasts. Reliability is highest in January to March and July to August. It is lowest in the October–November and April–May turns, where a month can behave like either neighbor. Dry-season months run roughly 25–28°C (77–82°F). Wet-season months run roughly 26–30°C (79–86°F).

How Weather Changes Your Plans

Match each activity to the season, then pick a fallback before you leave.

Rain-Day Plan and Sea-Condition Checks

When it pours, shift to a spa, a cooking class, Dinh Cau Temple or Ham Ninh fishing village. Cloud cover also makes midday walks easier. Before any boat day, ask the operator about its cancellation and refund policy. Look at the morning sea state yourself. Do not book the only free day of your trip for the boat tour. Keep one buffer day. Waiting out a 30–60 minute downpour usually saves the afternoon.

Weather, Price and Crowd Trade-Offs

Dry months bring the best sea and the biggest crowds. Wet months bring lower demand, so resorts often cut rates. Use this worked example only to compare quotes. A room at ₫2,000,000 a night in January could be offered for noticeably less in August. Ask each hotel for both rates. Do not rely on headline discount claims of 30–50%, which are marketing figures.

Packing for Phu Quoc Weather

Light, breathable clothes, sunglasses and a hat cover the dry season. Add a rain jacket, quick-dry layers and a waterproof bag between May and October. Three items help in either season: reef-safe sun protection, insect repellent and a dry bag for your phone. Pack closed shoes with grip if you plan to visit Phu Quoc National Park after rain.

Which Month Fits You?

Beach-first travelers should aim for December to March. Budget-first travelers can look at July to September and accept sea risk. Crowd-averse travelers do well in the wet season, with indoor fallbacks ready. Photographers get green waterfalls and dramatic skies from June to September. Families usually prefer calmer seas and predictable days. Use the Phu Quoc timing guide to choose your dates. Seasonal overviews are also published by Vietnam's national tourism authority.

Humidity and Heat: Plan the Middle of the Day

Humidity changes how Phu Quoc feels more than the thermometer alone suggests. Dry-season humidity is about 78%, while wet-season humidity commonly reaches 85–90%. Even a 26–30°C wet-season day can feel draining during a long beach walk or scooter ride.

Build outdoor plans around the coolest hours. Start a beach, national-park or Ganh Dau outing early. Return to your hotel for lunch, then use the later afternoon for the pool, a spa, or Dinh Cau Night Market. April and May need extra care because reported highs can reach 35°C.

Carry water whenever you ride or walk beyond resort areas. Choose breathable clothing that dries quickly after sweat or rain. A shaded lunch break also gives you flexibility if a 30–60 minute downpour passes through. Save snorkeling and island-hopping days for early departures, when conditions and energy levels are usually easier to manage.