Guide to The Best Thailand Islands geekyexplorer.com

Thailand has two island regions: the Andaman Sea (west) and the Gulf of Thailand (east). They have opposite weather seasons, different vibes, and different islands. The Andaman side (Koh Lipe, Railay, Koh Lanta) suits those chasing scenery and diving. The Gulf side (Koh Tao, Koh Phangan, Koh Samui) is better for nightlife and a tighter island-hopping circuit. Don’t try to do both on a short trip.

Thailand’s islands are what most people come for. And it’s easy to see why: white sand beaches, warm water, cheap food, and a laid-back energy that makes it genuinely hard to leave. But with hundreds of islands spread across two coastlines with opposite weather patterns, knowing which islands to visit — and when — makes the difference between a dream trip and a frustrating one. I’ve done Thailand island hopping on both coasts. I’ve had Koh Lipe feel like an actual dream. I’ve also had Phi Phi feel like a diesel-soaked tourist conveyor belt. This guide is the honest version: what each island is actually like, how to get there, and how to build an itinerary that doesn’t leave you spending half your trip on speedboats. This guide covers 9 main islands across both coasts, seasonal weather patterns, transport options, and practical tips for first-timers.