When you finally arrive in the Land of Smiles, you’re probably looking forward to the street food, serene beaches, and the chance to experience a new culture. But wait, can you drink the tap water in Thailand?
Though Thailand is generally a safe place, I have had plenty of food/waterborne illnesses.
Before you take a sip of water from the tap, let’s get a few things straight.
Can You Drink Tap Water in Thailand?
The short answer is that no, you probably shouldn’t. The Thai people themselves don’t drink it, and bottled water is readily available, anyway.
The official stance from Thai health authorities is that tap water is technically treated and supposed to be safe. (See the study they did in Bangkok.)
However, the infrastructure that delivers this water to your faucet isn’t always reliable. Pipes might be old (this is what locals often say), and contamination can occur along the way. So, while the water starts off clean, it doesn’t always stay that way by the time it reaches your hotel sink.
Compared to its neighbors in Southeast Asia, Thailand is somewhere in the middle. It’s not quite as bad as some places, where even brushing your teeth with tap water is a risky venture, but it’s also not as pristine as Singapore.
Locals themselves avoid tap water, preferring bottled water instead. If the people who’ve lived there their whole lives are skeptical, you probably should be too.
Health Risks of Drinking Tap Water in Thailand
If you’re feeling adventurous and decide to go ahead and drink the tap water, you might be in for an unwelcome surprise. Potential health risks include bacterial infections like E. coli or salmonella, not to mention chemical contaminants that could be lurking around.
Waterborne diseases are a real concern. You’ve got your classic gastrointestinal problems, like diarrhea and vomiting, which can turn your dream vacation into a nightmare quick.
So, unless you’re eager to test out your travel insurance, it’s better to steer clear of the tap.

Alternatives to Drinking Tap Water
Fear not, there are plenty of alternatives to keep you hydrated.
Bottled water is your best bet. It’s cheap, widely available, and comes in all shapes and sizes. Local brands like Singha and Crystal are pretty reliable, and you’ll find them everywhere from high-end restaurants to street vendors.
Just make sure the seal isn’t broken, because tampering does happen.
Tips for Safe Water Consumption in Thailand
To stay on the safe side, follow these tips for consuming water in Thailand.
Identifying Safe Water Sources
Stick to bottled water from reputable brands, and check the seal before purchasing. If you’re unsure about the quality of water, don’t hesitate to ask locals or hotel staff for advice.
Using Ice in Drinks
Be cautious with ice, as it’s often made from tap water.
In more upscale establishments, ice is usually made from purified water, but in street food stalls, it’s better to avoid it. When in doubt, skip the ice.

Cooking and Brushing Teeth
Use bottled or water for brushing your teeth and cooking. It might seem excessive, but better safe than sorry. Even a small amount of contaminated water can cause problems.
The Bottom Line
To sum it up, drinking tap water in Thailand isn’t the best idea. Stick to bottled water, or use a reliable water purification method to stay safe. Enjoy your trip without any unwelcome surprises from the local water supply.