How Portugal performs in international assessments. These are national averages — individual schools may vary significantly.
| Assessment | Year | Score | Rank |
|---|---|---|---|
| PIRLS Reading (Grade 4) | 2021 | 520 | 25 / 56 |
| TIMSS Mathematics (Grade 4) | 2019 | 525 | 19 / 58 |
| TIMSS Mathematics (Grade 8) | 2019 | 500 | 18 / 39 |
| TIMSS Science (Grade 4) | 2019 | 504 | 32 / 57 |
| TIMSS Science (Grade 8) | 2019 | 501 | 17 / 39 |