Bathing sites with excellent water quality in Portugal

Portugal: Bathing sites with excellent water quality was 56.9% in 2025. β—† Volatile

Latest (2025)
56.9%
Change on year
down 2.6%
World rank
23rd
of 27 countries
All-time high
78.9%
in 2018
All-time low
0.0%
in 1993
Years of data
33
1993–2025

Bathing sites with excellent water quality in Portugal, 1993–2025

0204060801993200920251993: 0 %1994: 26.7 %1995: 6.2 %1996: 6.2 %1997: 12.5 %1998: 12.5 %1999: 20.7 %2000: 35.3 %2001: 20.6 %2002: 10.3 %2003: 11.1 %2004: 21.9 %2005: 45.2 %2006: 59.5 %2007: 44.4 %2008: 43.2 %2009: 60 %2010: 52 %2011: 61.4 %2012: 62.9 %2013: 58.8 %2014: 52.8 %2015: 63.3 %2016: 69.6 %2017: 76.4 %2018: 78.9 %2019: 76.7 %2020: 74.5 %2021: 75.3 %2022: 65.6 %2023: 67.7 %2024: 58.4 %2025: 56.9 %

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.

Averages by decade

DecadeAverage LowestHighest 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

  1. 21 Hungary 64.0% compare
  2. 22 Slovenia 57.1% compare
  3. 24 Poland 56.7% compare
  4. 25 Croatia 54.8% compare
  5. 26 Spain 53.1% compare

See the full ranking of 27 places β†’

More environment data for Portugal

All data for Portugal β†’

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.

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About this data

Indicator
Bathing sites with excellent water quality
Unit
%
Source
European Environment Agency (2026) – with major processing by Our World in Data
Licence
CC BY 4.0 (Our World in Data)
Coverage
27 places, 710 data points, 1992–2025
Last refreshed

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.