Best Time to Visit Koh Phangan

Two islands in one

Koh Phangan has a split personality — the party beaches of the south-east and the sleepy coves and yoga bays of the north and west — but both run on the same Gulf calendar. Rain comes late here: October to December is the wet season, while January through April is dry, calm and sunny.

Like its neighbours Samui and Tao, Phangan makes an excellent European-summer destination. June to August is warm and mostly dry, with brief showers, and the island's beaches — from Bottle Beach to Thong Nai Pan — are at their barefoot best without high-season prices.

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At a glance

Driest, sunniest months: January–April
Rainiest stretch: October–December
Hottest months: March–May, often 33°C+
Full Moon Party runs every month, whatever the weather

Good to know

Check the Full Moon Party date before booking — prices on the south coast spike around it, and quiet corners get busier.
The west coast has the sunsets; the east coast has the sunrises and the wilder bays.
Roads to the remote north are steep and rough — in the rainy months, take a taxi rather than a scooter.
Between full moons in the green season, Phangan is one of the Gulf's best-value islands — bargain politely for longer stays.

Dry season: January to April

The classic months: settled seas, blue skies and easy longtail rides to beaches you cannot reach by road, like Bottle Beach. The island fills around each Full Moon Party and empties again a few days later — time your stay by the lunar calendar depending on which Phangan you want.

March and April are the hottest, with afternoons above 33°C. It is the best window for the jungle interior and the viewpoints — set out early, carry water, and reward yourself with a swim at Haad Yao before sunset.

Bottle Beach on Koh Phangan, reached by boat

Green season and the late rains

May to September is Phangan's gentle secret: warm, mostly dry, lush and quiet between the monthly party surges. Showers are short, sunsets over the west coast at Ban Tai and Haad Yao are spectacular, and bungalow prices drop.

October to December brings the real rain, usually peaking in November. Seas roughen, some boat trips stop, and dirt roads to the remoter bays turn to mud — hire scooters with extra care. The Full Moon Party carries on regardless, dancing in ponchos if it must.

Sunset over the sea at Ban Tai, Koh Phangan

Month by month

January	Drying out fast, lovely and lively
February	Dry, calm, sunny — superb
March	Hot and dry, jungle hikes early
April	Hottest month — Songkran parties
May	Hot, brief showers
June	Warm, mostly dry — great value
July	Warm summer season, short showers
August	Warm and mostly dry, easygoing
September	Showers slowly increasing
October	Rainy season begins
November	Usually the wettest month — rough seas
December	Wet early, improving for New Year

Frequently asked questions

When is the rainy season on Koh Phangan?

October to December, with November usually the wettest. The rest of the year sees mostly short tropical showers, and the European summer is largely dry.

Does the Full Moon Party run in the rainy season?

Yes — it happens every month on Haad Rin beach, whatever the weather. In November and December, expect the odd soaked edition and rougher boat rides from Samui.

Is Koh Phangan good outside the party dates?

Very much so. The north and west coasts — Haad Yao, Thong Nai Pan, Bottle Beach — are quiet, beautiful and family-friendly, and the island empties noticeably between full moons.

When are boat trips and beach-hopping best?

January to September, when the Gulf is calm. In the late-year monsoon, longtail trips to boat-only beaches like Bottle Beach can stop for days at a time.

Best time to visit Koh Phangan

Two islands in one

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