

Can You Drink Tap Water in Kathmandu?
Tap water in Kathmandu is not safe for visitors to drink. Intermittent supply, tanker water, ageing pipes and household storage tanks make bottled or properly purified water essential.

Complete Drinking Water Safety Information for Kathmandu
Tap water in Kathmandu is not safe for visitors to drink. The Kathmandu Valley has long faced water shortages and intermittent supply. Municipal water, tanker deliveries and private wells may all feed building storage tanks, making the quality at a specific tap difficult to verify.
The Melamchi Water Supply Project has increased water entering the valley, but it has not removed all risks associated with local distribution pipes, inconsistent pressure and private storage. Underground and rooftop tanks are common in hotels, homes and guesthouses, and their maintenance varies.
This advice applies throughout Thamel, Patan, Bhaktapur, Boudha and other visitor areas. Reputable hotels and trekking agencies provide sealed bottled water, filtered water or refill stations. Do not drink from bathroom taps or public taps.
Use purified water for drinking, brushing teeth, taking medication and washing foods eaten raw. Tap water is suitable for bathing. Travellers heading to trekking routes should carry a reliable treatment method because clear mountain water can still contain bacteria, protozoa or viruses from upstream human and animal activity.
Bottled water is widely available in Kathmandu, but filtered refill stations reduce plastic waste. Check the seal on any bottle and use a reputable provider for large refill containers.
Bottled Water Information
Sealed bottled water is widely available in Kathmandu. Filtered refill stations and reputable hotel dispensers are more sustainable choices for longer stays. Check bottle seals carefully.
Is Ice Safe in Kathmandu?
Ice should be avoided unless an established hotel or restaurant confirms it is made from purified water. At informal restaurants, stalls and smaller venues, request drinks without ice.
Should You Use a Water Filter in Kathmandu?
A system combining filtration with UV, chlorine dioxide or another virus-capable treatment is preferable. Basic carbon filters alone are not sufficient. Trekkers should carry a treatment method appropriate for bacteria, protozoa and viruses.
Should You Boil Tap Water in Kathmandu?
At Kathmandu's elevation, boil water at a rolling boil for at least three minutes. Boiling addresses most microorganisms but does not remove chemical contaminants or sediment.
Questions!
Is tap water safe to drink in Kathmandu?
No. Use sealed bottled or properly purified water.
Can I brush my teeth with Kathmandu tap water?
Use bottled or purified water.
Is ice safe in Kathmandu?
Only when an established venue confirms it was made from purified water.
How long should water be boiled in Kathmandu?
Maintain a rolling boil for at least three minutes because of the elevation.
Can I drink mountain water while trekking?
Not untreated. Streams and springs can contain pathogens even when they look clear.
We don't conduct independent water testing. We summarise and interpret publicly available official data. Conditions can change rapidly — always verify with local authorities before travelling.