Is Yokohama Tap Water Safe To Drink?

Yes! The tap water is safe to drink.

Tap water in Yokohama, Japan is safe to drink and meets international water quality standards.

Regular water quality tests ensure removal of bacteria, viruses, and other contaminants.

However, taste and odor may vary due to chlorine disinfection and local water treatment processes.

Japan is ranked as number 38 globally with a score of 78.7% in the water quality EPI research conducted by Yale University.

Source of Water in Yokohama, Japan

Main sources of tap water in Yokohama are Sagami River, Sakawa River, and underground water from the Kanagawa Prefecture.

Water treatment plants in Yokohama and nearby cities, such as Kawasaki, provide additional supply.

Rainwater and recycled water are also utilized to supplement the city's tap water supply during peak demand.

Yokohama Drinking Fountains

Many public drinking fountains in Yokohama are safe to drink from and regularly maintained.

These fountains are typically marked with a "drinking water" sign and are connected to the city's tap water system.

Locals often use them, and they can be a convenient way to refill your water bottle while exploring the city.

Drinking Water Map

Here is a map showing all the locations of drinking water spots in Yokohama. You can click on each water drop to open the spot directly in Google Maps for directions.

Disclaimer

* The information provided on this website regarding the safety of tap water in Yokohama is sourced from reputable sources such as the World Health Organization (WHO), local water authorities, and the Environmental Performance Index (EPI) from Yale University. While we strive to ensure accuracy and reliability, it's important to note that water quality can vary over time and may be subject to factors beyond our control. Users are encouraged to verify the current water quality status with local authorities or consult additional resources before making decisions regarding water consumption. We disclaim any liability for actions taken based on the information provided on this website.