Koh Samui

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Why visit Koh Samui?

Koh Samui balances accessibility with tropical depth, anchored by the iconic 12-meter golden Big Buddha statue at Wat Phra Yai. The island’s backbone is a lush, mountainous spine, offering a stark contrast to the development along the eastern shoreline. Spend mornings traversing the jungle canopy to reach the cascading tiers of Na Muang Waterfall, then transition to the upscale tranquility of Bophut’s Fisherman’s Village. Here, preserved 19th-century Chinese shophouses house refined boutiques and seaside bistros, providing a grounded alternative to the neon-lit frenzy of Chaweng Beach. The island acts as a gateway to the limestone crags of Ang Thong National Marine Park, an archipelago of 42 islands perfect for sea kayaking through turquoise lagoons.

Culinary exploration on Koh Samui moves beyond standard tourist fare. Seek out authentic Southern Thai spice by ordering Gaeng Tai Pla, a pungent fermented fish curry, or spicy Stir-fried Sator beans with shrimp at local haunts like Krua Chao Baan. For dessert, mango sticky rice remains the gold standard, best enjoyed as the sun dips behind the granite boulders of Hin Ta and Hin Yai. Whether you are navigating the winding coastal roads by scooter or chartering a boat to Koh Madsum, the island offers a distinct, sun-drenched rhythm.

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Everything for your Koh Samui trip

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More options: Kiwi.com · Oojo · seats.aero · Arangrant · HopeGoo · QEEQ · VIP Cars · GetTransfer · ViaToVia · Saily · Yesim · GigSky · Klook · EF Ultimate Break · EF Adventures · AirHelp Plus · CruiseDirect

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Popular experiences in Koh Samui

The things travellers book most here. You pay the same price as booking direct.

Top tours & activities in Koh Samui

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When to go to Koh Samui

The best months for Koh Samui are January, February, March, July, August and September. Highs then sit around 30°C, crowds are high at peak, and a week here is mid-priced.

Jan
28°
low 24°
18 wet days
Feb
28°
low 24°
16 wet days
Mar
30°
low 25°
14 wet days
Apr
31°
low 26°
18 wet days
May
31°
low 26°
20 wet days
Jun
31°
low 26°
15 wet days
Jul
30°
low 26°
21 wet days
Aug
31°
low 26°
17 wet days
Sep
30°
low 25°
22 wet days
Oct
29°
low 25°
27 wet days
Nov
28°
low 24°
27 wet days
Dec
28°
low 24°
19 wet days
Highlighted = best monthsNumber = average daytime highBar = how wet the month is

Temperatures and wet days are measured, not estimated: ERA5 reanalysis for 2021-2023, at Koh Samui Airport, Nakhon Si Thammarat. Source: Open-Meteo.

Planning Koh Samui

Best time to visit Koh SamuiMonth by month, measuredWhere to stay in Koh SamuiWhich area suits youHow many days you needWhat fits in a short or long stay

Koh Samui — common questions

When is the best time to visit Koh Samui?

The best months for Koh Samui are January, February, March, July, August and September. Highs then sit around 30°C, crowds are high at peak, and a week here is mid-priced.

What is the weather like in Koh Samui?

April is the warmest month, with daytime highs around 31°C. January is the coolest, around 28°C by day and 24°C at night. October is the wettest, with about 27 wet days. Figures are measured averages, not estimates.

What is Koh Samui known for?

Koh Samui is best known for beaches, islands, tropical weather and nature. The things people come for: Iconic Big Buddha statue and spice-heavy Gaeng Tai Pla curry.

Who is Koh Samui best suited to?

Koh Samui works particularly well for couples, solo travellers and groups of friends. That is based on what there is to do there, not on who books it most.

What can you book in advance in Koh Samui?

The experiences that sell out first are food tours, cooking classes, day trips, skip-the-line tickets, walking tours and night tours. You can check availability and prices on our booking partners below — you pay the same as booking direct.

Do I need a visa for Thailand?

That depends on your passport and how long you are staying, so there is no single answer. TonyPlan has a visa and entry checker — put in your nationality and it tells you what applies to you.

Get the Koh Samui guide as a PDF

Why to go, the best months with real measured temperatures, which area to stay in, and what flights cost right now — in one file you can read on the plane. Free.

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Getting to nearby places

To Koh Phangan (ferry)To Krabi (bus)To Phuket (flight)