The Key Difference: Opposite Rainy Seasons
The most important thing to know: Phuket and Koh Samui have opposite rainy seasons.
- Phuket: Dry November–April. Wet May–October.
- Koh Samui: Dry February–September. Wet October–January.
Visit in December? Choose Phuket. Visit in June? Consider Koh Samui.
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Side by Side
| Factor | Phuket | Koh Samui |
|---|---|---|
| Best beaches | Kata Noi, Surin, Nai Harn | Chaweng, Lamai, Bophut |
| Water clarity | Excellent | Good |
| Best day trip | Phi Phi Islands | Ang Thong Marine Park |
| Nightlife | Extensive (Patong) | Good (Chaweng) |
| Best time | November–April | February–September |
| Getting there | Direct flights from most cities | Bangkok Airways monopoly (expensive) or ferry |
| Island hopping | Phi Phi, Similan | Koh Tao, Koh Phangan nearby |
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Choose Phuket If…
- Visiting November–April
- Phi Phi Islands is a priority
- You want more beach and neighborhood variety
- Direct international flights matter
Choose Koh Samui If…
- Visiting February–September
- Ang Thong Marine Park is on your list
- You want to island hop (Koh Tao, Koh Phangan are 30–90 min away)
- You prefer a slightly smaller, less overwhelming island
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Phi Phi Islands day trips from Phuket and Ang Thong Marine Park tours from Koh Samui are both available on Klook — book ahead during peak season.
Book island tours in Phuket or Koh Samui on Klook →
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