Bathing sites with excellent water quality in Portugal
Portugal: Bathing sites with excellent water quality was 56.9% in 2025. ◆ Volatile
Bathing sites with excellent water quality in Portugal, 1993–2025
Source: European Environment Agency (2026) – with major processing by Our World in Data. Measured in %.
Analysis
Portugal recorded 56.9% for bathing sites with excellent water quality in 2025.
The figure is down 2.6% on the previous year and down 10.1% over ten years.
Over the whole period, bathing sites with excellent water quality in Portugal peaked at 78.9% in 2018 and was at its lowest, 0.0%, in 1993.
Portugal ranks 23rd of 27 countries on this measure, in the bottom quarter.
The series is highly variable year to year, so single readings are best treated with caution.
Bathing sites with excellent water quality in Portugal, year by year
| Year | % | Change |
|---|---|---|
| 1993 | 0.0% | — |
| 1994 | 26.7% | — |
| 1995 | 6.2% | -76.6% |
| 1996 | 6.2% | +0.0% |
| 1997 | 12.5% | +100.0% |
| 1998 | 12.5% | +0.0% |
| 1999 | 20.7% | +65.5% |
| 2000 | 35.3% | +70.6% |
| 2001 | 20.6% | -41.7% |
| 2002 | 10.3% | -50.2% |
| 2003 | 11.1% | +8.3% |
| 2004 | 21.9% | +97.3% |
| 2005 | 45.2% | +106.3% |
| 2006 | 59.5% | +31.7% |
| 2007 | 44.4% | -25.3% |
| 2008 | 43.2% | -2.9% |
| 2009 | 60.0% | +39.0% |
| 2010 | 52.0% | -13.3% |
| 2011 | 61.4% | +18.2% |
| 2012 | 62.9% | +2.4% |
| 2013 | 58.8% | -6.6% |
| 2014 | 52.8% | -10.1% |
| 2015 | 63.3% | +19.8% |
| 2016 | 69.6% | +9.9% |
| 2017 | 76.4% | +9.9% |
| 2018 | 78.9% | +3.2% |
| 2019 | 76.7% | -2.8% |
| 2020 | 74.5% | -2.9% |
| 2021 | 75.3% | +1.2% |
| 2022 | 65.6% | -12.9% |
| 2023 | 67.7% | +3.2% |
| 2024 | 58.4% | -13.8% |
| 2025 | 56.9% | -2.6% |
Portugal compared with similar countries
- Portugal's 56.9% is below the median for Europe & Central Asia, which is 80.0%, 71% of the median. (27 countries reporting)
- Portugal's 56.9% is below the median for high income countries, which is 80.4%, 71% of the median. (26 countries reporting)
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1990s | 12.1% | 0.0% | 26.7% | 7 |
| 2000s | 35.1% | 10.3% | 60.0% | 10 |
| 2010s | 65.3% | 52.0% | 78.9% | 10 |
| 2020s | 66.4% | 56.9% | 75.3% | 6 |
Countries ranked near Portugal
More environment data for Portugal
- Historical exposure to drought — Land soil moisture anomaly -0.6043 Percentage change (2025)
- Historical exposure to drought — Cropland soil moisture anomaly -0.5127 Percentage change (2025)
- Standard Deviation, annual growth rate 0 % change on previous year (2025)
- Standard Deviation 0.44 °C (2025)
- Temperature change 2.15 °C (2025)
- Wood-based panels — Production, annual growth rate 3.41 % change on previous year (2024)
- Total greenhouse gas emissions excluding LULUCF (Mt CO2e), annual -3.29 % change on previous year (2024)
- Total greenhouse gas emissions excluding LULUCF (Mt CO2e), per unit 0 Mt CO2e per US$ of GDP (2024)
- Total greenhouse gas emissions excluding LULUCF (Mt CO2e), per capita 0 Mt CO2e per person (2024)
- Methane (CH4) emissions from Agriculture (Mt CO2e), annual growth rate 0.1607 % change on previous year (2024)
Frequently asked questions
- What is bathing sites with excellent water quality in Portugal?
- Bathing sites with excellent water quality in Portugal was 56.9% in 2025, according to European Environment Agency (2026) – with major processing by Our World in Data.
- What is the highest bathing sites with excellent water quality recorded in Portugal?
- The highest recorded value was 78.9% in 2018.
- What is the lowest bathing sites with excellent water quality recorded in Portugal?
- The lowest recorded value was 0.0% in 1993.
- How does Portugal rank for bathing sites with excellent water quality?
- Portugal ranks 23rd out of 27 countries with data for 2025.
- Is bathing sites with excellent water quality rising or falling in Portugal?
- Over the last ten years it is down 10.1%. The long-run trend across the full record is volatile.
- Where does this Portugal data come from?
- The figures come from European Environment Agency (2026) – with major processing by Our World in Data, published as part of Bathing sites with excellent water quality. Statizoid updates them automatically from the source API.
Download this data
CSV · JSON — 33 observations, free to reuse under CC BY 4.0 (Our World in Data).
About this data
Share of bathing water sites in lakes or rivers that are of excellent quality. This means contamination levels of certain bacteria are below a strict threshold.