Can you drink the tap water in Japan? Mexico? India? Thailand? Know before you go — and find the right purification method for any trip.
25
Safe to drink
35
Use caution
4
Do not drink
64
Countries
If tap is safe...
Drink freely. Bring a reusable bottle. Ask restaurants for tap water — it's free and reduces plastic.
If caution is advised...
Use sealed bottled water for drinking. Hotel filtered water is usually fine for brushing teeth. Avoid ice from unknown sources.
If water is unsafe...
Bottled water only — even for brushing teeth. Don't use ice unless sure it's from RO/filtered water. Wash fruit with bottled water.
Country conditions and local advisories can change after flooding, outbreaks, or infrastructure failures. Use these primary sources before relying on the summary.
Australia
Safe to drinkOne of the world's safest tap water systems. Fluoridated and filtered.
New Zealand
Safe to drinkExcellent water quality. Rural streams may need filtering.
Canada
Safe to drinkVery high standards. Some First Nations communities have advisories — check locally.
USA
Safe to drinkGenerally safe. Lead pipes in older cities (Flint, MI) are exceptions. Check local advisories.
UK
Safe to drinkExcellent. One of the best in the world.
Germany
Safe to drinkTap water (Leitungswasser) is safe and often better than bottled.
France
Safe to drinkEau du robinet is safe everywhere in France — ask for 'une carafe d'eau' in restaurants.
Netherlands
Safe to drinkConsistently rated among Europe's best tap water.
Sweden
Safe to drinkExcellent water quality. Tap water is a point of national pride.
Norway
Safe to drinkVery safe. Direct from the tap anywhere in the country.
Denmark
Safe to drinkNo need for bottled water anywhere in Denmark.
Finland
Safe to drinkExcellent. Finland exports water quality technology globally.
Switzerland
Safe to drinkSwiss tap water is spring-quality. One of the best in the world.
Austria
Safe to drinkVienna's tap water comes directly from Alpine springs.
Ireland
Safe to drinkSafe everywhere. Restaurant water served on request.
Spain
Safe to drinkSafe, though some areas (Barcelona) have a mineral taste locals find unpleasant.
Italy
Safe to drinkTap water is safe. Look for 'acqua potabile' fountains — free water throughout cities.
Portugal
Safe to drinkSafe in cities. Rural Alentejo water can taste mineral-heavy.
Greece
Safe to drinkMost cities safe. Santorini and smaller islands use desalination — safe but tastes different.
Iceland
Safe to drinkPossibly the best tap water in the world — direct from glaciers.
Japan
Safe to drinkTokyo tap water won international awards. Safe everywhere in Japan.
Singapore
Safe to drinkWorld-class water treatment. Tap water is safe and free at hawker centres.
South Korea
Safe to drinkTechnically safe but locals often prefer bottled due to old pipe concerns.
Israel
Safe to drinkAdvanced desalination and treatment. Safe everywhere.
UAE / Dubai
Safe to drinkTreated and safe, though desalinated and some find taste unpleasant.
China
Use cautionTap water is treated but not recommended for drinking without boiling or filtering. Bottled water widely available and cheap.
Taiwan
Use cautionInfrastructure is improving — technically safe in Taipei, but most locals boil or filter.
Hong Kong
Use cautionWater supply is safe but old building pipes may leach lead — use bottled for peace of mind.
Thailand
Use cautionDo NOT drink tap water. Use bottled or filtered. Ice at hotels and restaurants is generally safe (made from RO water).
Vietnam
Use cautionDo not drink tap water. Bottled water (10,000 VND / ~$0.40) is cheap and everywhere.
Malaysia
Use cautionKuala Lumpur tap water is treated but infrastructure concerns mean most locals use filters. Bottled recommended.
Bali (Indonesia)
Use cautionDo not drink tap water anywhere in Bali. Bottled water is very cheap (Rp 5,000 = ~$0.30).
Philippines
Use cautionTap water is not safe to drink. Bottled water is widely available.
India
Use cautionDo not drink tap water. Use sealed bottled water only. Even hotel room tap water should not be consumed.
Sri Lanka
Use cautionAvoid tap water. Bottled water or filtered water only.
Nepal
Use cautionDo not drink tap water. Use bottled or purification tablets (especially on treks).
Bangladesh
Use cautionTap water not safe. Use bottled water.
Cambodia
Use cautionAvoid tap water. Bottled water is inexpensive everywhere.
Laos
Use cautionAvoid tap water. Use bottled or properly boiled water.
Jordan
Use cautionWater is technically treated but tourists often experience stomach issues. Bottled recommended.
Egypt
Use cautionDo not drink tap water. Use sealed bottled water — strict rule for all travelers.
Morocco
Use cautionTap water treated in cities but stomach sensitivity common. Bottled recommended.
Tunisia
Use cautionTap water is chlorinated but bottled recommended for visitors.
Türkiye
Use cautionTechnically treated but mineral content and pipes mean bottled is preferred. Istanbul tap water has very high chlorine taste.
Russia
Use cautionTap water is treated but not recommended for drinking — especially in St. Petersburg (Giardia risk). Use bottled.
Ukraine
Use cautionTreated but infrastructure varies widely. Bottled recommended.
Romania
Use cautionMajor cities have safe water. Rural areas more variable. Bottled for safety.
Bulgaria
Use cautionGenerally safe in Sofia. Outside major cities, variable.
Albania
Use cautionInfrastructure improving but bottled recommended in most areas.
Kosovo
Use cautionInfrastructure variable. Bottled recommended.
Mexico
Use cautionDo not drink tap water anywhere in Mexico. Traveler's diarrhea is the #1 health complaint. Use bottled or treated water — including for brushing teeth.
Guatemala
Use cautionTap water not safe. Use bottled or purification tablets.
Colombia
Use cautionVariable by city. Bogotá tap water is technically safe; other regions less reliable. Bottled recommended.
Peru
Use cautionDo not drink tap water. Use bottled or boiled. Altitude affects stomach sensitivity too.
Brazil
Use cautionTap water treated but varies significantly by state and infrastructure. Bottled recommended for visitors.
Argentina
Use cautionBuenos Aires tap water is reportedly safe, but many visitors still opt for bottled. Rural areas — bottled only.
Bolivia
Use cautionDo not drink tap water. Altitude adds to stomach issues. Use bottled.
Kenya
Use cautionNairobi tap water treated but not recommended for visitors. Use bottled.
Tanzania
Use cautionTap water not safe. Bottled water is widely available at lodges and towns.
South Africa
Use cautionCape Town and Johannesburg water is treated and technically safe. Load-shedding affects pumping — bottled for safety.
Nigeria
Do not drinkDo not drink tap water under any circumstances. Bottled water essential.
Ethiopia
Do not drinkTap water is not safe. Use bottled only.
Haiti
Do not drinkCritically unsafe tap water. Cholera risk. Sealed bottled water only.
Papua New Guinea
Do not drinkInfrastructure outside Port Moresby is minimal. Boil or bottled only.
Ice is the most overlooked water safety issue. Here's the truth:
Hotels (3★+)
Usually safe
Most use filtered/RO ice machines. Ask staff to confirm.
Restaurants in tourist areas
Usually safe
Quality tourist-area restaurants use commercial ice from filtered sources.
Street food / local markets
Variable risk
Ice may be made from tap water. Crushed tube ice in Southeast Asia (hollow cylinder shape) is usually commercially made and safer.
Drinks at clubs/bars
Use judgement
In places like Bali, Bangkok, Mexico City — major bars use safe ice. Small local bars are more variable.
Whether you're backpacking or trying to reduce plastic waste, here are the best ways to treat water yourself.
| Method | Cost | Effectiveness | Eco |
|---|---|---|---|
| Bottled water | $0.30–2.00/litre | 100% (sealed) | ⭐ (plastic waste) |
| Boiling | Near-free | 100% (pathogens) | ⭐⭐⭐⭐ |
| LifeStraw / Sawyer filter | $20–50 one-off | 99.9999% (bacteria/protozoa) | ⭐⭐⭐⭐⭐ |
| SteriPen (UV) | $50–100 device | 99.9% (all pathogens) | ⭐⭐⭐⭐⭐ |
| Iodine/Chlorine tablets | $5–12 per pack | 99.9% (30 min wait) | ⭐⭐⭐⭐ |
| Grayl GeoPress filter bottle | $90 one-off | 99.9999% (all pathogens) | ⭐⭐⭐⭐⭐ |
Symptoms to watch for
What to do
Disclaimer: Water safety can change due to local infrastructure issues, flooding, or natural disasters. Always check current advisories with your country's official travel health website (CDC Travelers Health, NHS Fit for Travel, or Travel Health Pro) before departure. This guide is for general planning purposes only.
Know the water safety — now plan a recommendable trip with itineraries, costs, and local tips.