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Seasonal ranking

Warmest sea temperature in Portugal in September

Where the sea is warmest across Portugal during September, ranked by long-term monthly average water temperature. Praia da Falésia (Algarve, Portugal) tops the list at around 21°C. Open any spot for today's live water temperature and a 7-day swim forecast.

  1. 1
    Praia da Falésia
    Algarve · Portugal · Atlantic Ocean
    Pleasant — swimmable without a wetsuit
    21°C
    September average
  2. 2
    Praia da Rocha
    Algarve · Portugal · Atlantic Ocean
    Pleasant — swimmable without a wetsuit
    21°C
    September average
  3. 3
    Praia de Benagil
    Algarve · Portugal · Atlantic Ocean
    Pleasant — swimmable without a wetsuit
    21°C
    September average
  4. 4
    Praia da Luz
    Algarve · Portugal · Atlantic Ocean
    Pleasant — swimmable without a wetsuit
    21°C
    September average
  5. 5
    Praia de Tavira
    Algarve · Portugal · Atlantic Ocean
    Pleasant — swimmable without a wetsuit
    21°C
    September average
  6. 6
    Praia de Quarteira
    Algarve · Portugal · Atlantic Ocean
    Pleasant — swimmable without a wetsuit
    21°C
    September average
  7. 7
    Praia de Alvor
    Algarve · Portugal · Atlantic Ocean
    Pleasant — swimmable without a wetsuit
    21°C
    September average
  8. 8
    Praia de Odeceixe
    Algarve · Portugal · Atlantic Ocean
    Pleasant — swimmable without a wetsuit
    21°C
    September average
  9. 9
    Praia do Tamariz
    Lisbon Coast · Portugal · Atlantic Ocean
    Pleasant — swimmable without a wetsuit
    21°C
    September average
  10. 10
    Praia de Carcavelos
    Lisbon Coast · Portugal · Atlantic Ocean
    Pleasant — swimmable without a wetsuit
    21°C
    September average
  11. 11
    Praia Grande
    Lisbon Coast · Portugal · Atlantic Ocean
    Pleasant — swimmable without a wetsuit
    21°C
    September average
  12. 12
    Praia de Comporta
    Alentejo Coast · Portugal · Atlantic Ocean
    Pleasant — swimmable without a wetsuit
    21°C
    September average
  13. 13
    Praia da Galé
    Alentejo Coast · Portugal · Atlantic Ocean
    Pleasant — swimmable without a wetsuit
    21°C
    September average
  14. 14
    Praia de Odeceixe-Mar
    Alentejo Coast · Portugal · Atlantic Ocean
    Pleasant — swimmable without a wetsuit
    21°C
    September average
  15. 15
    Praia da Zambujeira
    Alentejo Coast · Portugal · Atlantic Ocean
    Pleasant — swimmable without a wetsuit
    21°C
    September average
  16. 16
    Praia de Nazaré
    Silver Coast · Portugal · Atlantic Ocean
    Pleasant — swimmable without a wetsuit
    21°C
    September average
  17. 17
    Praia de Peniche
    Silver Coast · Portugal · Atlantic Ocean
    Pleasant — swimmable without a wetsuit
    21°C
    September average
  18. 18
    Praia de São Pedro de Moel
    Silver Coast · Portugal · Atlantic Ocean
    Pleasant — swimmable without a wetsuit
    21°C
    September average
  19. 19
    Praia Formosa
    Madeira · Portugal · Atlantic Ocean
    Pleasant — swimmable without a wetsuit
    21°C
    September average
  20. 20
    Porto Santo Beach
    Madeira · Portugal · Atlantic Ocean
    Pleasant — swimmable without a wetsuit
    21°C
    September average
  21. 21
    Praia do Porto Moniz
    Madeira · Portugal · Atlantic Ocean
    Pleasant — swimmable without a wetsuit
    21°C
    September average
  22. 22
    Praia de Santa Bárbara
    Azores · Portugal · Atlantic Ocean
    Pleasant — swimmable without a wetsuit
    21°C
    September average
  23. 23
    Praia do Porto Pim
    Azores · Portugal · Atlantic Ocean
    Pleasant — swimmable without a wetsuit
    21°C
    September average
  24. 24
    Praia da Calheta
    Madeira · Portugal · Atlantic Ocean
    Pleasant — swimmable without a wetsuit
    21°C
    September average
  25. 25
    Prainha do Caniçal
    Madeira · Portugal · Atlantic Ocean
    Pleasant — swimmable without a wetsuit
    21°C
    September average

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Portugal in September — frequently asked questions

Where is the sea warmest in Portugal in September?
Praia da Falésia in Portugal has the warmest sea in Portugal in September, averaging about 21.0 °C. Praia da Rocha (21.0 °C) and Praia de Benagil follow close behind.
How many beaches in Portugal are warm enough to swim in September?
None of the top 25 ranked beaches in Portugal reach 22 °C in September, so a wetsuit is recommended for anything longer than a quick dip.
How are these September sea temperatures calculated?
Each figure is a long-term monthly average sea surface temperature for that location, so it reflects a typical September rather than today's reading. Open a beach page for the live water temperature and 7-day forecast.

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