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Ko Samui, Thailand
Surat Thani · Thailand
Ko Samui is a mid-size city in Surat Thani, Thailand with a population of 50,000. Elevation: 26 ft (8 m). Average temperature: 81°F (27°C).
Data updated June 2026
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About Ko Samui
Ko Samui or Koh Samui, often locally shortened to Samui, is an island off the east coast of Thailand. Geographically in the Chumphon Archipelago, it is part of Surat Thani Province, though as of 2012, Ko Samui was granted municipal status and thus is now locally self-governing. Ko Samui, with an area of 228.7 square kilometres (88.3 sq mi), is Thailand's second largest island after Phuket. In 2018, it was visited by 2.7 million tourists.
People
Climate
| Population | 50,000 |
| Population Density | 566 / sq mi |
| Elevation | 26 ft (8 m) |
| Coordinates | 9.5357°, 99.9357° |
| Timezone | Asia/Bangkok |
| Country | 🇹🇭 Thailand |
| State / Province | Surat Thani |
| Average Temperature | 81°F (27°C) |
| January Average | 79°F (26°C) |
| July Average | 82°F (28°C) |
| Annual Precipitation | 65.8 inches (1,671 mm) |
| Annual Snowfall | 0.0 inches (0 cm) |
About Ko Samui
Ko Samui is a mid-size city in Thailand (Surat Thani) with a population of 50,000. The city sits at an elevation of 26 feet (8 meters) above sea level. The average annual temperature is 81°F (27°C). Temperatures range from 79°F in January to 82°F in July. Annual precipitation averages 65.8 inches. The timezone is Asia/Bangkok.
Climate in Ko Samui
Ko Samui has an average annual temperature of 0°C (32°F). The hottest month is Jan (0°C), the coldest is Jan (0°C). Average annual precipitation is 0 mm.
Temperature
| Annual Average | 81.1°F |
| 50% above Thailand avg | |
| January Average | 79°F (26°C) |
| July Average | 82°F (28°C) |
| Sunny Days | 223 days/yr |
Geography
| Elevation | 26 ft (8 m) |
| Area | 88.3 sq mi (228.7 km²) |
| Population Density | 566/sq mi |
| Coordinates | 9.5357°N, 99.9357°W |
| Timezone | Asia/Bangkok |
Precipitation & Snow
Air Quality
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 79°F (26°C) | 3.2 in | |
| February | 80°F (27°C) | 1.9 in | Driest |
| March | 82°F (28°C) | 2.7 in | |
| April | 83°F (29°C) | 3.0 in | |
| May | 84°F (29°C) | 5.1 in | Warmest |
| June | 83°F (28°C) | 3.4 in | |
| July | 82°F (28°C) | 3.5 in | |
| August | 82°F (28°C) | 4.0 in | |
| September | 81°F (27°C) | 5.0 in | |
| October | 80°F (27°C) | 10.4 in | |
| November | 79°F (26°C) | 16.3 in | Wettest |
| December | 78°F (26°C) | 7.5 in | Coldest |
Ko Samui has a seasonal temperature swing of 5°F / from 78°F in December to 84°F in May. Total annual precipitation is 65.8 inches, with November being the wettest month (16.3") and February the driest (1.9").
Schools in Ko Samui
5 public schools (NCES 2022-23 data).
| School | Level | Enrollment | Teachers | Student/Teacher |
|---|---|---|---|---|
| Learn Thai Language | - | - | - | - |
| Wat Sawangarom School | - | - | - | - |
| Koh Samui Language School | - | - | - | - |
| New Thai Language School | - | - | - | - |
| IFDS - École Privé Française | - | - | - | - |
Radio Stations near Ko Samui
0 stations within ~55 km.
| Station | Genre | Quality |
|---|
Museums in Ko Samui
| Name | Type | Address | Phone | Annual Revenue |
|---|---|---|---|---|
| Coconut Museum | ||||
| Coconut Museum | ||||
| Koko galery | ||||
| Samui Cultural Center and Fine Art of South East Asia |
Libraries in Ko Samui
| Name | Address | Staff | Annual Visits | Circulation | Collection | Programs |
|---|---|---|---|---|---|---|
| Buddhadharma Library | 0.0 |
Farmers Markets in Ko Samui
| Name | Address | Season | Hours | Organic | Website |
|---|---|---|---|---|---|
| Apple Juice Lady | |||||
| Bangrak beach fish market | |||||
| Bophut Food Market | |||||
| Fish market | |||||
| Food Market | |||||
| fresh food local market | |||||
| Fresh Market | |||||
| Lamai Fresh Food Market | |||||
| Lamai Night Market | |||||
| Morning market | |||||
| Night Market | |||||
| Night Market | |||||
| Night Market | |||||
| Night Market | |||||
| Phantip Market | |||||
| Saturday Market | |||||
| Walking street |
Hotels in Ko Samui
200 hotels within city radius - OpenStreetMap data
Restaurants in Ko Samui
149 restaurants within city radius - OpenStreetMap data
Cafes in Ko Samui
49 cafes within city radius - OpenStreetMap data
Cinemas in Ko Samui
1 cinemas within city radius - OpenStreetMap data
Monuments in Ko Samui
3 monuments within city radius - OpenStreetMap data
Zoos in Ko Samui
8 zoos within city radius - OpenStreetMap data
Clinics in Ko Samui
4 clinics within city radius - OpenStreetMap data
Veterinaries in Ko Samui
1 veterinaries within city radius - OpenStreetMap data
Bus Stations in Ko Samui
1 bus stations within city radius - OpenStreetMap data
Gas Stations in Ko Samui
21 gas stations within city radius - OpenStreetMap data
Banks in Ko Samui
8 banks within city radius - OpenStreetMap data
Shopping Malls in Ko Samui
3 shopping malls within city radius - OpenStreetMap data
Gyms in Ko Samui
3 gyms within city radius - OpenStreetMap data
Golf Courses in Ko Samui
3 golf courses within city radius - OpenStreetMap data
Stadiums & Teams in Ko Samui
| Team | League | Division |
|---|---|---|
Airports Near Ko Samui
1 airports within the area.
| Airport | IATA | Type |
|---|---|---|
| Samui International Airport | USM | Large Airport |
Post Offices in Ko Samui
6 post offices.
| Post Office | Address |
|---|---|
| DHL Samui - Plus Express | |
| Lamai Post Office | |
| Nathon Post Office | |
| Post Office Maenam | |
| Radio Thailand Samui | |
| TNT and Thai Cargo office |
Churches & Religious Organizations in Ko Samui
13 religious organizations (IRS tax-exempt data).
| Name | Address |
|---|---|
| Buddha Teepangkorn | |
| Chinese Temple | |
| Hai Lam Chinese Temple Samui | |
| Laem Din Priest's Camp Site | |
| Rotunda | |
| Saint Anna Catholic Church | |
| Sitting buddha | |
| Wat Hin Lat | |
| Wat Khongkharam | |
| Wat Kiri Wongkaram | |
| Wat Na Phra Lan | |
| Wat Phu Khao Thong (Gukauthong) | |
| Wat Samuthra Ram |
Explore Near Ko Samui
Quick Facts
Things to See Near Ko Samui
57 places within 15 km
- • Baan Tai
- • Ban Po Beach
- • Coral Cove Beach
- • Haad Bophut
- • Haad Chaweng Noi
- + 13 more
- • Monk Cave
- • Taling Ngam Caves
- • เขาด่าง
- • 360
- • Apirom viewpoint and restorant
- • Bang Kao Beach
- • Cobra Stone Viewpoint
- • Coconut Beach/Tongyang Beach
- + 26 more
- • น้ำตกซองเรือ
- • Funny Day Safari (Elephant riding)
- • Koh Samui Monkey Center
- • Samui Crocodile Farm
- • Snake farm
🇹🇭 About Thailand
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Get a comprehensive, print-ready PDF with all data for Ko Samui.
Get ReportFrequently Asked Questions About Ko Samui
What is the population of Ko Samui?
Ko Samui has a population of 50,000 residents and is located in Thailand. The population density is 566 people per square mile, spread across 88.3 square miles.
What is the weather like in Ko Samui?
Ko Samui has a warm climate with an average annual temperature of 81°F (27°C). Winter temperatures average 79°F in January, while summers reach an average of 82°F in July. The area receives 223 sunny days per year. Annual rainfall totals 65.8 inches.