🔄 Updated 20 Jun 2026
Short answer: Choose Phuket (Andaman) for the widest choice — beaches, nightlife, island tours and direct flights. Choose Koh Samui (Gulf) for a more compact, laid-back island feel. A key difference is the rainy timing: Phuket is wettest around May–Oct, while Samui’s rain comes late in the year.
Phuket vs Koh Samui at a glance
| Factor | Phuket | Koh Samui |
|---|---|---|
| Coast | Andaman | Gulf |
| Size/choice | Big, the most options | Smaller, more compact |
| Wettest months | May–Oct | Oct–Dec |
| Island tours | Phi Phi, James Bond, Similan | Angthong, Tao, Phangan |
| Nightlife | Big | Present but lighter |
| Best for | Want it all | Compact, chilled island |
Which should you choose?
- Pick Phuket if you want the most options, big nightlife and famous island tours like Phi Phi
- Pick Koh Samui if you want a compact, chilled island near Phangan and Tao
- Check the season — from May–Oct, Gulf-side Samui often has better weather than Phuket
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