Tap water in Koh Samui
Not safe to drink
Based on resident-reported scores for Koh Samui, in Thailand.
What the sources say
25/100 on the water drinkability and accessibility index, which Numbeo reads as “Low”. Crowdsourced from residents rather than measured.
No measured quality report for Koh Samui yet. If you know a reliable local source, leave it in the comments and we will add it.
What bottled water costs you here
Drinking tap water instead of bottled would save one adult about 380$ a year in Koh Samui.
Work out your own saving