Koh Chang vs Koh Samui

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Forested islands and shallow turquoise water seen from Kai Bae View Point on Koh Chang
Koh Chang island
Palm trees and beachfront terraces beside the clear sea on Koh Samui
Koh Samui island
Quick verdict
Why choose Koh Chang

A small advantage for keeping costs down

Local eateries and a range of guesthouses help with value, while ferry transfers and island transport add to the total.

Why choose Koh Samui

Easier exploring without a scooter

Taxis, arranged transfers and tours make a scooter optional, especially from a well-chosen base. Cross-island outings usually need a ride and some advance arrangement. Another assessed advantage: a livelier nightlife scene.

Koh Chang and Koh Samui in Thailand Dots show representative locations, rather than destination boundaries. Koh Samui Koh Chang

Side by side

What feels different

Our editorial assessments · Select a factor to see how we scored each place.

Koh Chang Factor Koh Samui

Why we rate Koh Chang 8/10

Several long west-coast beaches make beach days easy, though the sand and swimming vary by bay and season.

Why we rate Koh Samui 9/10

A broad choice of beaches reachable by road lets you pick lively resort strips or quieter sands. Different coasts and bays suit different beach days.

What we assess

Beach appeal, convenient access and variety during a beach-focused stay, within the destination itself.

Why we rate Koh Chang 8/10

A mountainous rainforest interior, waterfalls and curving bays give Koh Chang more than a beach-only landscape.

Why we rate Koh Samui 8/10

Palm-lined coasts, a green interior and waterfalls give you scenery beyond the beach. Viewpoints and inland outings add variety.

What we assess

The visual impact of natural surroundings and how central those landscapes are to a typical stay.

Why we rate Koh Chang 4/10

Fishing communities, temples and local island life add some cultural interest, but major heritage sights are limited.

Why we rate Koh Samui 5/10

Temples and the old shophouses of Fisherman’s Village add cultural interest. The island offers fewer extensive historic quarters than Thailand’s cultural cities.

What we assess

The variety, depth and practical access to historic places, temples, architecture, traditions and cultural experiences during a typical stay.

Why we rate Koh Chang 6/10

Seafood, Thai restaurants and familiar international meals are available along the west-coast bases.

Why we rate Koh Samui 8/10

Southern Thai food, seafood, markets and international restaurants give you a varied dining scene. Good meals are available well beyond luxury resorts.

What we assess

Food quality, variety, distinctive local cooking and how readily visitors can find good places to eat, regardless of price.

Why we rate Koh Chang 4/10

Beach bars and casual live music are available, but evenings are generally low-key outside a few strips.

Why we rate Koh Samui 8/10

Chaweng’s lively venues, beach clubs and cocktail spots offer a substantial evening scene. Other bases suit more relaxed nights.

What we assess

The choice, variety and liveliness of evening venues, their opening hours and how easily you can enjoy a typical night out.

Why we rate Koh Chang 7/10

Quiet beaches and forested stays are easy to find away from the busiest west-coast centres.

Why we rate Koh Samui 6/10

Quieter coasts and relaxed beach bases are available, but traffic and lively resort strips mean choosing an area carefully.

What we assess

How easily you can enjoy a peaceful stay, considering traffic, nightlife noise, crowds and practical quieter bases.

Why we rate Koh Chang 8/10

Boat trips reach nearby islands and snorkelling sites, though routes and frequency depend on season and departure bay.

Why we rate Koh Samui 8/10

Ang Thong excursions and connections to nearby Gulf islands offer varied boat days and multi-island trips. Departure points and journey lengths differ.

What we assess

The variety of worthwhile sea-island trips, convenient departures, journey times and flexibility under normal operating conditions.

Why we rate Koh Chang 5/10

Shared songthaews and organised trips cover popular stops, but routes are limited and the island’s steep, spread-out roads constrain flexibility.

Why we rate Koh Samui 7/10

Taxis, arranged transfers and tours make a scooter optional, especially from a well-chosen base. Cross-island outings usually need a ride and some advance arrangement.

What we assess

Freedom to explore without renting a scooter, using walking, public transport, taxis, tuk-tuks, ride-hailing or boats; transport price is assessed separately.

Why we rate Koh Chang 7/10

Local eateries and a range of guesthouses help with value, while ferry transfers and island transport add to the total.

Why we rate Koh Samui 6/10

Local meals and simple stays keep a modest budget possible. Ground transport and boat outings can make the full holiday costlier than the room price suggests.

What we assess

How easily you can enjoy a typical stay on a modest budget, including simple accommodation, food, realistic transport and characteristic activities.

Scores out of 10 · Higher means more of that characteristic About these scores

How to read the scale
Scores run from 0 to 10 and describe how strongly a destination offers each characteristic.

Higher does not always mean better
A higher nightlife score means a livelier scene. A higher quietness score means a calmer atmosphere. The right balance depends on your trip.

Close scores mean similar experiences
Small differences should not decide your trip on their own.

Koh Chang

Choose Koh Chang if...

  • You want a beach holiday with rainforest and waterfall outings too.
  • You like a green, mountainous island with several different beach bases.
  • You prefer casual beach evenings and quieter stays over a major party scene.

The trade-off

The island is spread out, with steep roads between some areas. Shared taxis and organised trips help, but beach-hopping and independent exploring take more planning than on a compact island.

Koh Samui

Choose Koh Samui if...

  • You want a choice between lively beach areas and quieter island stays.
  • You enjoy markets, seafood and varied restaurants alongside the beach.
  • You want varied beach days and island exploring, with boat excursions such as Ang Thong as an option.

The trade-off

Exploring different beaches usually means arranging rides, which can add to your budget. Chaweng’s lively scene and the quieter coasts offer very different stays.

Plan your trip

When to go

See how temperature, rainfall and travel conditions change through the year. Select a month to focus your comparison.

Selected month comparison for Koh Chang and Koh Samui
FactorKoh ChangKoh Samui
Average daytime high 32°C 29°C
Monthly Rainfall 51 mm 127 mm
Rainy days 4.9 11.1
Crowds High High
Stay prices High High
Sea conditions Calm Variable
Average daytime high 32°C 29°C
Monthly Rainfall 82 mm 64 mm
Rainy days 7.4 5.6
Crowds High High
Stay prices High High
Sea conditions Calm Calm
Average daytime high 33°C 30°C
Monthly Rainfall 140 mm 116 mm
Rainy days 12.6 5.9
Crowds High High
Stay prices High High
Sea conditions Calm Calm
Average daytime high 33°C 32°C
Monthly Rainfall 196 mm 83 mm
Rainy days 14.9 8.1
Crowds Moderate High
Stay prices Typical High
Sea conditions Calm Calm
Average daytime high 33°C 33°C
Monthly Rainfall 420 mm 132 mm
Rainy days 21.9 14
Crowds Low Moderate
Stay prices Low Typical
Sea conditions Variable Variable
Average daytime high 32°C 33°C
Monthly Rainfall 777 mm 134 mm
Rainy days 25.4 13.1
Crowds Low Moderate
Stay prices Low Typical
Sea conditions Rough Variable
Average daytime high 31°C 32°C
Monthly Rainfall 1024 mm 117 mm
Rainy days 26.6 14.3
Crowds Low High
Stay prices Low High
Sea conditions Rough Variable
Average daytime high 31°C 32°C
Monthly Rainfall 970 mm 102 mm
Rainy days 27 14.5
Crowds Low Moderate
Stay prices Low Typical
Sea conditions Rough Variable
Average daytime high 31°C 32°C
Monthly Rainfall 816 mm 118 mm
Rainy days 24.8 15
Crowds Low Low
Stay prices Low Low
Sea conditions Rough Variable
Average daytime high 32°C 31°C
Monthly Rainfall 338 mm 295 mm
Rainy days 21.3 19.3
Crowds Moderate Low
Stay prices Typical Low
Sea conditions Variable Rough
Average daytime high 33°C 30°C
Monthly Rainfall 85 mm 445 mm
Rainy days 9.1 18.7
Crowds High Low
Stay prices High Low
Sea conditions Calm Rough
Average daytime high 32°C 29°C
Monthly Rainfall 28 mm 263 mm
Rainy days 3.5 14.2
Crowds High High
Stay prices High High
Sea conditions Calm Variable
Monthly conditions for Koh Chang and Koh Samui
DestinationJanFebMarAprMayJunJulAugSepOctNovDec
Average daytime high
Koh Chang
32°C
32°C
33°C
33°C
33°C
32°C
31°C
31°C
31°C
32°C
33°C
32°C
Koh Samui
29°C
29°C
30°C
32°C
33°C
33°C
32°C
32°C
32°C
31°C
30°C
29°C
Monthly Rainfall
Koh Chang
51 mm
82 mm
140 mm
196 mm
420 mm
777 mm
1024 mm
970 mm
816 mm
338 mm
85 mm
28 mm
Koh Samui
127 mm
64 mm
116 mm
83 mm
132 mm
134 mm
117 mm
102 mm
118 mm
295 mm
445 mm
263 mm
Rainy days
Koh Chang 4.9 7.4 12.6 14.9 21.9 25.4 26.6 27 24.8 21.3 9.1 3.5
Koh Samui 11.1 5.6 5.9 8.1 14 13.1 14.3 14.5 15 19.3 18.7 14.2
Crowds
Koh Chang High High High Moderate Low Low Low Low Low Moderate High High
Koh Samui High High High High Moderate Moderate High Moderate Low Low Low High
Stay prices
Koh Chang High High High Typical Low Low Low Low Low Typical High High
Koh Samui High High High High Typical Typical High Typical Low Low Low High
Sea conditions
Koh Chang Calm Calm Calm Calm Variable Rough Rough Rough Rough Variable Calm Calm
Koh Samui Variable Calm Calm Calm Variable Variable Variable Variable Variable Rough Rough Variable

Temperatures are historical average daytime highs, not the highest temperatures you might experience. Rainfall and rainy days are monthly averages, not a forecast. A rainy day need not mean rain all day.

Stay prices are relative to each destination’s usual rates. Holidays can bring extra crowds and higher prices. Sea conditions vary by beach and day; check local conditions before boat trips.

Koh Chang: Thai Meteorological Department — TRAT, 1991–2020.

Koh Samui: Thai Meteorological Department — KO SAMUI (48550), 1991–2020.