OECD PISA 2025 · released 8 September 2026
Portugal’s 2025 scores sit close to its early PISA results, after a decade of decline. Reading and mathematics fell sharply since 2022. Science held broadly steady.
01 · The long view
The line shows Portugal against the OECD average in every available cycle. The score is a scale score for 15-year-olds, not a percentage correct. Reading starts in 2000, mathematics in 2003 and science in 2006.
Portugal and OECD average · PISA scale points
02 · The comparison
The ranking gives orientation. Small differences should not be read as meaningful without uncertainty intervals. Use the subject buttons to see the top systems and Portugal’s position on the same scale.
Top 10 participating systems plus Portugal · 2025 score points
| Country/economy | Score | Rank |
|---|
03 · The recent turn
This view compares 2022 with 2025. It shows the six largest declines and six largest gains in each subject, keeping Portugal and the comparable 35-system OECD benchmark in view. That is a focused movement view, not a complete causal ranking.
Change in PISA score points · 2022–2025
04 · The distribution
Mean scores compress a distribution into one number. These bars show how the share below Level 2 and the share at Level 5 or above changed between 2015 and 2025. The comparison is in percentage points.
Portugal · percentage of students · 2015 and 2025
Below Level 2 is the OECD’s basic proficiency threshold. Level 5 or above denotes high-performing students.
| Subject | Below L2, 2015 | Below L2, 2025 | Change | Level 5+, 2025 |
|---|
05 · Inside Portugal
That gap is larger than the difference between many countries near Portugal in the international table.
The OECD estimate describes an association with socio-economic status. It does not identify a single cause.
National rankings describe system-level averages. They do not show how evenly results are distributed inside a country.
06 · Classroom context
The digital measures are self-reported. The adjusted curves account for socio-economic status, yet they remain associations. They cannot tell us that a device, an app or AI caused a score to rise or fall.
Adjusted science score by reported learning-device use at school
The curve is highest in the middle categories. It is a descriptive adjusted association, not a recommended dose.
Portugal reports fewer learning-device hours at school, slightly more leisure hours, and more classroom distraction than the OECD average.
Share of students reporting selected weekly uses · Portugal and OECD average
The dashboard describes reported use. It does not measure whether the use improved learning.