SeasonMapKo Pha Ngan (Koh Phangan) weather by month
Thailand
The best time to visit Ko Pha Ngan (Koh Phangan) is January to March — 90/100 in March, 29°C and 7 rainy days. The best season is the dry season, January to April (86/100 on average).
The worst month is October at 61/100 — sweltering, soaked, clean air. See October →
Updated September 2026 · climate normals from ERA5 reanalysis
Planning the wider trip? Best time to visit Thailand →
Ko Pha Ngan, month by month
Comfort score out of 100 for the kind of trip Ko Pha Ngan is best for, the average high, rainy days and hours of sun a day from the climate normals, and how busy it tends to be.
| Month | Score | Tier | High | Rain | Sun | Crowds | On |
|---|---|---|---|---|---|---|---|
| JanJanuary | 84 | A | 28°C | 9 d | 10 h | Peak | 3 |
| FebFebruary | 89 | A | 28°C | 9 d | 11 h | Peak | 2 |
| MarMarch | 90 | S | 29°C | 7 d | 11 h | Peak | 2 |
| AprApril | 82 | A | 30°C | 12 d | 11 h | Peak | 3 |
| MayMay | 76 | B | 31°C | 22 d | 10 h | Peak | 2 |
| JunJune | 80 | A | 31°C | 19 d | 10 h | Peak | 2 |
| JulJuly | 75 | B | 31°C | 21 d | 9 h | Peak | 2 |
| AugAugust | 79 | B | 31°C | 20 d | 10 h | Peak | 2 |
| SepSeptember | 70 | B | 30°C | 22 d | 9 h | Busy | 1 |
| OctOctober | 61 | C | 30°C | 27 d | 8 h | Peak | 2 |
| NovNovember | 62 | C | 29°C | 22 d | 8 h | Busy | 2 |
| DecDecember | 73 | B | 28°C | 14 d | 10 h | Peak | 3 |
What's on in Ko Pha Ngan through the year
Festivals, natural spectacles, holidays and the seasons to watch out for — curated and sourced. The month pages carry the detail.
Crowds in Ko Pha Ngan in March
How busy the place itself is — school and mass holidays, the months an editor tagged, and how sought-after the weather makes them. Never part of the comfort score.
Peak crowdsFull Moon Party, Gulf dry season, school holidays in 2 of the markets that fill it(estimated)
Peak crowdsBusyShoulder seasonQuiet