Is Kýthnos Tap Water Safe To Drink?
No, it's not advisable to drink the tap water.
Tap water in Kýthnos is treated under Greek and European Union drinking-water standards and is generally safe to drink when supplied through the municipal network. Its taste and mineral content can vary because the island relies on desalination, groundwater, and stored water.
Use bottled water if your accommodation uses a private cistern or well, or labels its tap water as non-potable. Bottled water is also commonly preferred by visitors because of seasonal changes in taste and supply.
Last checked: 2026-08-31
Greece is ranked as number 13 globally with a score of 96.6% in the water quality EPI research conducted by Yale University.
Source of Water in Kýthnos, Greece
Tap water in Kýthnos comes mainly from local groundwater wells and springs, supplemented by seawater desalination. The island’s municipal water system stores and distributes this water through local reservoirs.
During dry periods or when demand exceeds local production, Kýthnos can also receive water by tanker. This supplemental supply is common on Cycladic islands with limited freshwater resources.
Kýthnos Drinking Fountains
Public drinking fountains in Kýthnos are safe to use when they are clearly marked as drinking water and connected to the municipal supply, which is regulated under Greek and EU drinking-water standards. Avoid fountains marked non-potable or those that appear poorly maintained.
During periods of water shortage, temporary supply changes, or after maintenance, use bottled water or water from a trusted treated source instead. Let the water run briefly before drinking, especially if the fountain has not been used recently.
Drinking Water Map
Here is a map showing all the locations of drinking water spots in Kýthnos. You can click on each water drop to open the spot directly in Google Maps for directions. For easy access on the go, download our iOS app to find water fountains nearby.
Nearby Places
About the Author
Hi, I'm Emily Hartman, a researcher and water quality specialist with a background in public health.
I've spent the last few years studying how everyday water systems impact our health, and I'm passionate about making that information clear and useful for everyone.
Safe, clean tap water isn't just my job, it's something I truly care about.