Koh Samui vs Koh Yao Yai
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Copyright of the Tourism Authority of Thailand (TAT)
A livelier nightlife scene
Chaweng’s lively venues, beach clubs and cocktail spots offer a substantial evening scene. Other bases suit more relaxed nights. Another assessed advantage: a stronger beach offering.
A quieter setting
Quiet coastal stays and an unhurried village setting are central to the island experience, with local variation around piers and resorts.
Side by side
What feels different
Our editorial assessments · Select a factor to see how we scored each place.
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.
Why we rate Koh Yao Yai 7/10
Several appealing beach bases and Laem Had provide strong coastal appeal, with substantial tidal and location differences.
What we assess
Beach appeal, convenient access and variety during a beach-focused stay, within the destination itself.
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.
Why we rate Koh Yao Yai 8/10
Green island landscapes, coastal views and the Laem Had sandbar provide a strong natural setting.
What we assess
The visual impact of natural surroundings and how central those landscapes are to a typical stay.
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.
Why we rate Koh Yao Yai 5/10
Village and fishing-community outings offer worthwhile local context, with less depth of major heritage sights than 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 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.
Why we rate Koh Yao Yai 6/10
Village food and several resort restaurants provide useful choice, though dining is dispersed rather than concentrated in a large town.
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 Samui 8/10
Chaweng’s lively venues, beach clubs and cocktail spots offer a substantial evening scene. Other bases suit more relaxed nights.
Why we rate Koh Yao Yai 2/10
Resort bars and quiet coastal evenings are available, with few late-night options beyond the main resort venues.
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 Samui 6/10
Quieter coasts and relaxed beach bases are available, but traffic and lively resort strips mean choosing an area carefully.
Why we rate Koh Yao Yai 9/10
Quiet coastal stays and an unhurried village setting are central to the island experience, with local variation around piers and resorts.
What we assess
How easily you can enjoy a peaceful stay, considering traffic, nightlife noise, crowds and practical quieter bases.
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.
Why we rate Koh Yao Yai 8/10
Arranged trips reach nearby islands and Phang Nga Bay, with weather, group size and the chosen base affecting convenience.
What we assess
The variety of worthwhile sea-island trips, convenient departures, journey times and flexibility under normal operating conditions.
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.
Why we rate Koh Yao Yai 6/10
A chosen resort base works with arranged transfers and taxis; exploring the spread-out island requires planning and extra rides.
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 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.
Why we rate Koh Yao Yai 6/10
Simple bungalows and village food are available, but the smaller budget selection and boat or road transfers add costs.
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 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.
Koh Yao Yai
Choose Koh Yao Yai if...
- Laem Had sandbar and coastal scenery
- Local village and fishing-community context
- Resort stays and arranged water-based outings
The trade-off
The island is dispersed, beaches are tide-sensitive, and a resort transfer does not provide effortless transport everywhere else.
Plan your trip
When to go
See how temperature, rainfall and travel conditions change through the year. Select a month to focus your comparison.
| Factor | Koh Samui | Koh Yao Yai |
|---|---|---|
| Average daytime high | 29°C | 33°C |
| Monthly Rainfall | 127 mm | 50 mm |
| Rainy days | 11.1 | 5.6 |
| Crowds | High | High |
| Stay prices | High | High |
| Sea conditions | Variable | Calm |
| Average daytime high | 29°C | 34°C |
| Monthly Rainfall | 64 mm | 24 mm |
| Rainy days | 5.6 | 3.4 |
| Crowds | High | High |
| Stay prices | High | High |
| Sea conditions | Calm | Calm |
| Average daytime high | 30°C | 34°C |
| Monthly Rainfall | 116 mm | 81 mm |
| Rainy days | 5.9 | 7.5 |
| Crowds | High | High |
| Stay prices | High | High |
| Sea conditions | Calm | Calm |
| Average daytime high | 32°C | 34°C |
| Monthly Rainfall | 83 mm | 135 mm |
| Rainy days | 8.1 | 11.7 |
| Crowds | High | Moderate |
| Stay prices | High | Typical |
| Sea conditions | Calm | Variable |
| Average daytime high | 33°C | 33°C |
| Monthly Rainfall | 132 mm | 237 mm |
| Rainy days | 14 | 18.9 |
| Crowds | Moderate | Low |
| Stay prices | Typical | Low |
| Sea conditions | Variable | Variable |
| Average daytime high | 33°C | 33°C |
| Monthly Rainfall | 134 mm | 249 mm |
| Rainy days | 13.1 | 18.6 |
| Crowds | Moderate | Low |
| Stay prices | Typical | Low |
| Sea conditions | Variable | Rough |
| Average daytime high | 32°C | 32°C |
| Monthly Rainfall | 117 mm | 240 mm |
| Rainy days | 14.3 | 19.1 |
| Crowds | High | Low |
| Stay prices | High | Low |
| Sea conditions | Variable | Rough |
| Average daytime high | 32°C | 32°C |
| Monthly Rainfall | 102 mm | 309 mm |
| Rainy days | 14.5 | 19.5 |
| Crowds | Moderate | Low |
| Stay prices | Typical | Low |
| Sea conditions | Variable | Rough |
| Average daytime high | 32°C | 32°C |
| Monthly Rainfall | 118 mm | 350 mm |
| Rainy days | 15 | 21.7 |
| Crowds | Low | Low |
| Stay prices | Low | Low |
| Sea conditions | Variable | Rough |
| Average daytime high | 31°C | 32°C |
| Monthly Rainfall | 295 mm | 336 mm |
| Rainy days | 19.3 | 22.7 |
| Crowds | Low | Low |
| Stay prices | Low | Low |
| Sea conditions | Rough | Rough |
| Average daytime high | 30°C | 32°C |
| Monthly Rainfall | 445 mm | 178 mm |
| Rainy days | 18.7 | 15.9 |
| Crowds | Low | Moderate |
| Stay prices | Low | Typical |
| Sea conditions | Rough | Variable |
| Average daytime high | 29°C | 32°C |
| Monthly Rainfall | 263 mm | 82 mm |
| Rainy days | 14.2 | 10.3 |
| Crowds | High | High |
| Stay prices | High | High |
| Sea conditions | Variable | Calm |
| Destination | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Average daytime high | ||||||||||||
| 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
|
| Koh Yao Yai |
33°C
|
34°C
|
34°C
|
34°C
|
33°C
|
33°C
|
32°C
|
32°C
|
32°C
|
32°C
|
32°C
|
32°C
|
| Monthly Rainfall | ||||||||||||
| 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
|
| Koh Yao Yai |
50 mm
|
24 mm
|
81 mm
|
135 mm
|
237 mm
|
249 mm
|
240 mm
|
309 mm
|
350 mm
|
336 mm
|
178 mm
|
82 mm
|
| Rainy days | ||||||||||||
| Koh Samui | 11.1 | 5.6 | 5.9 | 8.1 | 14 | 13.1 | 14.3 | 14.5 | 15 | 19.3 | 18.7 | 14.2 |
| Koh Yao Yai | 5.6 | 3.4 | 7.5 | 11.7 | 18.9 | 18.6 | 19.1 | 19.5 | 21.7 | 22.7 | 15.9 | 10.3 |
| Crowds | ||||||||||||
| Koh Samui | High | High | High | High | Moderate | Moderate | High | Moderate | Low | Low | Low | High |
| Koh Yao Yai | High | High | High | Moderate | Low | Low | Low | Low | Low | Low | Moderate | High |
| Stay prices | ||||||||||||
| Koh Samui | High | High | High | High | Typical | Typical | High | Typical | Low | Low | Low | High |
| Koh Yao Yai | High | High | High | Typical | Low | Low | Low | Low | Low | Low | Typical | High |
| Sea conditions | ||||||||||||
| Koh Samui | Variable | Calm | Calm | Calm | Variable | Variable | Variable | Variable | Variable | Rough | Rough | Variable |
| Koh Yao Yai | Calm | Calm | Calm | Variable | Variable | Rough | Rough | Rough | Rough | Rough | Variable | Calm |
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 Samui: Thai Meteorological Department — KO SAMUI (48550), 1991–2020.
Koh Yao Yai: Thai Meteorological Department - PHUKET (48564), 1991-2020.
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Copyright of the Tourism Authority of Thailand (TAT)
Copyright of the Tourism Authority of Thailand (TAT)
Copyright of the Tourism Authority of Thailand (TAT)