Koh Phangan by Month
Every month on the island rated — weather, sea conditions, crowds and what to expect. Koh Phangan's dry peak season runs December–April; the monsoon peaks in October and November. The Full Moon Party runs every month of the year.
Calm seas, warm dry days, low humidity
Busy high season
Month guide →
Glassy seas, driest month, sunny
Peak; books out fast
Month guide →
Calm clear seas, dry, most sunshine
Peak crowds, firm prices
Month guide →
Warm calm sea, hot, mostly bright
Tapering; Songkran spike mid-month
Month guide →
Very warm sea, hottest, first storms
Quieter shoulder, good value
Month guide →
Warm sea, often bright, brief showers
Calm, easy to find rooms
Month guide →
Warm sea, generally fine, short showers
Moderate; school-holiday uptick
Month guide →
Warm sea, mostly pleasant, passing showers
Moderate, manageable
Month guide →
Choppier sea, wetter, cloudiest month
Quiet, low prices
Month guide →
Rough seas, heavy rain, storms build
Very quiet, cheapest rooms
Month guide →
Roughest seas, wettest month, ferry delays
Quietest of the year
Month guide →
Drying out, calmer seas, sunnier late
Building; holiday rush month-end
Month guide →
The seasonal pattern
December – April
Dry northeast monsoon. Calm seas, reliable sunshine, the most beach days. February and March are the pick of the year. Book early — particularly around Full Moon dates.
May – August
Warm seas, brief afternoon showers, lush jungle. Crowds thin, prices fall. Good for wellness, waterfalls and anyone who prefers a quieter island.
September – November
The Gulf's peak rain window. Rough seas, persistent showers possible. Lowest prices of the year. Suits flexible, budget-driven travellers; outdoor activities are weather-dependent.