22-Night Cruise on SirenaEuropean Explorer London to Istanbul - Weather

Departing Southampton, England on August 5, 2026, the Oceania Cruises ship Sirena runs this 22-night European Explorer London to Istanbul sailing. It's a classic Mediterranean cruise. Travelers sailing in August can generally expect mild, changeable weather that can turn cool and wet. Ports of call include Southampton, England, Le Verdon, France, St Jean de Luz, France, with 18 more along the way. Scroll the daily outlook below to pack smart for every port of call.

1. Day 1 — Wednesday, Aug 5, 2026 — Southampton, England

   Southampton, England is a scheduled port of call on day 1 of the 22-night European Explorer London to Istanbul cruise on Sirena. Expected weather: partially cloudy with highs near 71°F.

2. Day 2 — Friday, Aug 7, 2026 — Le Verdon, France

   Le Verdon, France is a scheduled port of call on day 2 of the 22-night European Explorer London to Istanbul cruise on Sirena. Expected weather: partially cloudy with highs near 83°F.

3. Day 3 — Saturday, Aug 8, 2026 — St Jean de Luz, France

   St Jean de Luz, France is a scheduled port of call on day 3 of the 22-night European Explorer London to Istanbul cruise on Sirena. Expected weather: partially cloudy with highs near 76°F.

4. Day 4 — Sunday, Aug 9, 2026 — Gijon, Spain

   Gijon, Spain is a scheduled port of call on day 4 of the 22-night European Explorer London to Istanbul cruise on Sirena. Expected weather: partially cloudy with highs near 73°F.

5. Day 5 — Monday, Aug 10, 2026 — Ferrol, Spain

   Ferrol, Spain is a scheduled port of call on day 5 of the 22-night European Explorer London to Istanbul cruise on Sirena. Expected weather: partially cloudy with highs near 74°F.

6. Day 6 — Tuesday, Aug 11, 2026 — Porto, Portugal

   Porto, Portugal is a scheduled port of call on day 6 of the 22-night European Explorer London to Istanbul cruise on Sirena. Expected weather: partially cloudy with highs near 78°F.

7. Day 7 — Wednesday, Aug 12, 2026 — Lisbon, Portugal

   Lisbon, Portugal is a scheduled port of call on day 7 of the 22-night European Explorer London to Istanbul cruise on Sirena. Expected weather: partially cloudy with highs near 78°F.

8. Day 8 — Thursday, Aug 13, 2026 — Cadiz, Spain

   Cadiz, Spain is a scheduled port of call on day 8 of the 22-night European Explorer London to Istanbul cruise on Sirena. Expected weather: clear with highs near 81°F.

9. Day 9 — Friday, Aug 14, 2026 — Malaga, Spain

   Malaga, Spain is a scheduled port of call on day 9 of the 22-night European Explorer London to Istanbul cruise on Sirena. Expected weather: clear with highs near 80°F.

10. Day 10 — Saturday, Aug 15, 2026 — Almeria, Spain

    Almeria, Spain is a scheduled port of call on day 10 of the 22-night European Explorer London to Istanbul cruise on Sirena. Expected weather: clear with highs near 79°F.

11. Day 11 — Sunday, Aug 16, 2026 — Ibiza, Spain

    Ibiza, Spain is a scheduled port of call on day 11 of the 22-night European Explorer London to Istanbul cruise on Sirena. Expected weather: partially cloudy with highs near 80°F.

12. Day 12 — Monday, Aug 17, 2026 — Barcelona, Spain

    Barcelona, Spain is a scheduled port of call on day 12 of the 22-night European Explorer London to Istanbul cruise on Sirena. Expected weather: partially cloudy with highs near 79°F.

13. Day 13 — Wednesday, Aug 19, 2026 — Palermo, Sicily

    Palermo, Sicily is a scheduled port of call on day 13 of the 22-night European Explorer London to Istanbul cruise on Sirena. Expected weather: clear with highs near 92°F.

14. Day 14 — Thursday, Aug 20, 2026 — Siracusa, Sicily

    Siracusa, Sicily is a scheduled port of call on day 14 of the 22-night European Explorer London to Istanbul cruise on Sirena. Expected weather: clear with highs near 82°F.

15. Day 15 — Friday, Aug 21, 2026 — Argostoli, Greece

    Argostoli, Greece is a scheduled port of call on day 15 of the 22-night European Explorer London to Istanbul cruise on Sirena. Expected weather: clear with highs near 83°F.

16. Day 16 — Saturday, Aug 22, 2026 — Gythion, Greece

    Gythion, Greece is a scheduled port of call on day 16 of the 22-night European Explorer London to Istanbul cruise on Sirena. Expected weather: clear with highs near 84°F.

17. Day 17 — Sunday, Aug 23, 2026 — Paros, Greece

    Paros, Greece is a scheduled port of call on day 17 of the 22-night European Explorer London to Istanbul cruise on Sirena. Expected weather: clear with highs near 73°F.

18. Day 18 — Monday, Aug 24, 2026 — Piraeus, Greece

    Piraeus, Greece is a scheduled port of call on day 18 of the 22-night European Explorer London to Istanbul cruise on Sirena. Expected weather: clear with highs near 93°F.

19. Day 19 — Tuesday, Aug 25, 2026 — Kusadasi, Turkey

    Kusadasi, Turkey is a scheduled port of call on day 19 of the 22-night European Explorer London to Istanbul cruise on Sirena. Expected weather: clear with highs near 94°F.

20. Day 20 — Wednesday, Aug 26, 2026 — Bozcaada

    Bozcaada is a scheduled port of call on day 20 of the 22-night European Explorer London to Istanbul cruise on Sirena. Expected weather: clear with highs near 79°F.

21. Day 21 — Thursday, Aug 27, 2026 — Istanbul, Turkey

    Istanbul, Turkey is a scheduled port of call on day 21 of the 22-night European Explorer London to Istanbul cruise on Sirena. Expected weather: partially cloudy with highs near 82°F.