Can You Drink Tap Water in the Algarve?

Tap water in the Algarve is safe to drink under EU drinking water standards and is treated and monitored by regional water utilities including Águas do Algarve. However, the region's water has a well-known reputation for poor taste. The Algarve is the driest region of mainland Portugal, with low annual rainfall and limited freshwater reserves. Its water supply draws on underground aquifers that have high mineral content, and in coastal areas, saltwater intrusion has further affected water quality. In summer, the system is supplemented to meet surging tourist demand, which can affect taste further.

The mineral-heavy, slightly salty taste of Algarve tap water is the primary reason locals and visitors avoid drinking it directly. This is particularly noticeable in resort towns along the coast such as Albufeira, Vilamoura, Lagos, and Faro, where the water comes from aquifers under the most pressure. Inland areas of the Algarve, particularly around the Serra de Monchique, receive softer, higher-quality water that is more palatable, but most visitors stay in coastal resort areas where the taste is noticeably worse.

Portuguese people throughout the Algarve routinely buy bottled water for home drinking. Supermarkets carry multiple brands at very low prices, and the large 5–6 litre bottles used for domestic consumption are a common sight in local households and holiday accommodation. Hotels typically provide bottled water in rooms and serve filtered water in their restaurants, reinforcing the expectation among visitors that tap water is not for drinking.

From a health perspective, there are no concerns about drinking Algarve tap water. It is safe for brushing teeth, cooking pasta, making tea and coffee, and all household uses. Visitors who are particularly sensitive to mineral taste may notice stomach adjustment in the first couple of days, but this is a response to the mineral composition rather than any contamination.

The Algarve has invested in water infrastructure in recent years, and Águas do Algarve has modernised treatment facilities across the region. Despite improvements, the underlying geology means the water will continue to have higher mineral content than northern European water supplies. For visitors committed to reducing plastic waste, a filter jug or reusable bottle with a built-in filter is a practical solution during the stay.