Is Tap Water Safe to Drink in Mauritius?

Mauritius relies on a network of mountain reservoirs including Mare aux Vacoas, La Nicolière, and Midlands Dam, fed by the island's high rainfall and volcanic highland catchments. The Central Water Authority (CWA) treats this water through modern filtration and chlorination plants before distributing it across the island via a well-maintained pipe network.

Treated water leaving CWA plants meets WHO drinking water guidelines, but some older buildings in Port Louis and other urban centers have aging cast-iron pipes that can introduce rust and turbidity. Sediment discoloration after heavy tropical rains is a periodic cosmetic issue rather than a significant health risk in most areas.

Port Louis and the central Plateau region, including Curepipe and Vacoas, benefit from the most consistent supply due to proximity to major reservoirs. Coastal resort areas in the north and west, such as Grand Baie and Flic en Flac, generally have reliable treated water, though hotels commonly still provide bottled water as a courtesy.

Mauritius's water is generally soft, typically 30–80 mg/L, reflecting the island's volcanic basalt geology and high rainfall dilution..

Most Mauritians drink tap water directly, and it is standard in homes, schools, and restaurants across the island without special treatment.

• •Tap water is safe to drink island-wide, but let it run briefly if a building's plumbing is old
• •Bottled water is widely available and inexpensive if you prefer it for taste
• •Use a simple carbon filter to improve taste if staying long-term
• •Report visibly discolored water to your accommodation rather than drinking it

• •No special precautions are generally needed for treated tap water
• •Let water run briefly after periods away from older buildings to clear stagnant pipe water