Island in Surat Thani, Thailand
Can you drink tap water in Koh Samui?
NoNo, drink bottled
Can you drink the tap water in Koh Samui?
Don't drink the tap water. Island tap water comes from wells and reservoirs; drink bottled or refill-machine water.
Key facts
- In Koh Samui: Island tap water comes from wells and reservoirs; drink bottled or refill-machine water.
- Across Thailand: Locals don't drink from the tap; use bottled water or cheap coin refill machines. Restaurant ice is factory-made and generally fine.
Tap water across Thailand
| Place | Tap water |
|---|---|
| Bangkok | No, drink bottled |
| Phuket | No, drink bottled |
| Chiang Mai | No, drink bottled |
| Koh Samui | No, drink bottled |
| Krabi | No, drink bottled |
| Koh Phi Phi | No, drink bottled |
| Koh Phangan | No, drink bottled |
| Pai | No, drink bottled |
| Pattaya | No, drink bottled |
| Koh Tao | No, drink bottled |
| Patong | No, drink bottled |
| Hua Hin | No, drink bottled |
| Chiang Rai | No, drink bottled |
| Ayutthaya | No, drink bottled |
| Koh Lanta | No, drink bottled |
| Railay | No, drink bottled |
| Kanchanaburi | No, drink bottled |
| Koh Chang | No, drink bottled |
| Khao Lak | No, drink bottled |
| Koh Samet | No, drink bottled |
| Koh Lipe | No, drink bottled |
| Khao Yai | No, drink bottled |
| Khao Sok | No, drink bottled |
| Sukhothai | No, drink bottled |
| Hat Yai | No, drink bottled |
| Kata Beach | No, drink bottled |
| Jomtien | No, drink bottled |
| Rawai | No, drink bottled |
| Udon Thani | No, drink bottled |
| Koh Kood | No, drink bottled |
Quick answers
Is tap water safe to drink in Koh Samui?
Don't drink the tap water. Island tap water comes from wells and reservoirs; drink bottled or refill-machine water.
Can you drink tap water in Thailand?
Locals don't drink from the tap; use bottled water or cheap coin refill machines. Restaurant ice is factory-made and generally fine.
More about Koh Samui
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Sources
- World Bank: safely managed drinking water (WHO/UNICEF)
- CDC: food and water safety for travelers
- Bangkok Hospital Samui
- Lomprayah ferries
- Seatran Discovery ferries
- Raja Ferry
- Grab Thailand service areas
Verdicts reflect official utility statements and what locals actually do. Compiled and reviewed by SoloSquare. How we compile and score this. Spotted something out of date? Tell us.