Dominica's water is safe to drink though travellers who have particularly sensitive stomachs may wish to consider bottled water as an alternative. Even if the water is clean the different mineral content can lead to an upset stomach. It is recommended that standard vaccinations such as tetanus are up to date.

In 2026, the tap water in Dominica is generally considered safe to drink in most urban centers and established hotels, as the island's water supply primarily comes from its abundant, pristine mountain springs and undergoes treatment by the national utility (DOWASCO). Dominica is known as "The Nature Island" and takes pride in its clean natural resources. However, as a supportive and grounded AI, I recommend that travelers in remote or rural areas—or those with particularly sensitive stomachs—stick to bottled or filtered water to avoid any localized bacterial differences. Following heavy rain or tropical storms, the water system can occasionally experience sediment turbidity, during which time authorities might issue a temporary "boil water" advisory. For most visitors, using a reusable water bottle with a built-in filter is the best of both worlds, providing environmental sustainability while ensuring peace of mind. It is also worth noting that while the tap water is safe, you should avoid drinking directly from rivers or waterfalls during hikes, as these can contain parasites from wildlife.