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Is Nagasaki Tap Water Safe To Drink?

Do not Drink :(

LAST UPDATED: 12:53 pm, April 8, 2021

Table of Contents

Can You Drink Tap Water in Nagasaki?

No, tap water is not drinkable.

Tap Safe includes data from many publicly available sources, including the WHO (World Health Organization), CDC (Center for Disease Control), and user submitted databases, but unfortunately there's not enough data about Nagasaki.

To see user submitted ratings of the water quality for Japan, see the "User Submitted Ratings" box on this page.


In Japan, the town of Nagasaki has long been a target for international press attention, due to the massive earthquake and tsunami that devastated the city. As the largest city in the zone, it was not surprising to see the contamination levels rising following the incident. After all, the inundation of water from the tsunami was not just for people living nearby. It also had spread over several miles of coastline, bringing with it highly contaminated soil and seawater. It has taken years to clean up the contaminated land, but the contaminated water can still be seen in the local water supply.

The Japanese Government took action immediately to contain the contamination and has been dealing with the problem ever since. They have set up many treatment plants and treatment centers around the country and have even imported American technology to deal with the problem. Unfortunately, despite all these efforts, there is still much that needs to be done. Contaminates in t

The estimated price of bottled water

$1.27 in USD (1.5-liter)


Nagasaki tap water
  • Drinking Water Pollution and Inaccessibility 67% High
  • Water Pollution 67% High
  • Drinking Water Quality and Accessibility 33% Low
  • Water Quality 33% Low

The above data is comprised of subjective, user submitted opinions about the water quality and pollution in Nagasaki, measured on a scale from 0% (lowest) to 100% (highest).

Related FAQS


Always take extra precautions, the water may be safe to drink when it leaves the sewage treatment plant but it may pick up pollutants during its way to your tap. We advise that you ask locals or hotel staff about the water quality. Also, note that different cities have different water mineral contents.

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