20-Night Cruise on Oceania SirenaRevered & Romantic Shores Istanbul to Rome - Weather

The Oceania Sirena sails a 20-night Revered & Romantic Shores Istanbul to Rome itinerary with Oceania Cruises, departing Istanbul, Turkey on November 12, 2026. It's a classic Mediterranean cruise. Travelers sailing in November can generally expect mild, changeable weather that can turn cool and wet. Ports of call include Istanbul, Turkey, Bozcaada, Mykonos, Greece, with 18 more along the way. Use the day-by-day forecast below to plan what to pack for each stop.

1. Day 1 — Thursday, Nov 12, 2026 — Istanbul, Turkey

   Istanbul, Turkey is a scheduled port of call on day 1 of the 20-night Revered & Romantic Shores Istanbul to Rome cruise on Oceania Sirena. Expected weather: partially cloudy with highs near 61°F.

2. Day 2 — Friday, Nov 13, 2026 — Bozcaada

   Bozcaada is a scheduled port of call on day 2 of the 20-night Revered & Romantic Shores Istanbul to Rome cruise on Oceania Sirena. Expected weather: partially cloudy with highs near 63°F.

3. Day 3 — Saturday, Nov 14, 2026 — Mykonos, Greece

   Mykonos, Greece is a scheduled port of call on day 3 of the 20-night Revered & Romantic Shores Istanbul to Rome cruise on Oceania Sirena. Expected weather: partially cloudy with highs near 64°F.

4. Day 4 — Sunday, Nov 15, 2026 — Piraeus, Greece

   Piraeus, Greece is a scheduled port of call on day 4 of the 20-night Revered & Romantic Shores Istanbul to Rome cruise on Oceania Sirena. Expected weather: partially cloudy with highs near 71°F.

5. Day 5 — Monday, Nov 16, 2026 — Gythion, Greece

   Gythion, Greece is a scheduled port of call on day 5 of the 20-night Revered & Romantic Shores Istanbul to Rome cruise on Oceania Sirena. Expected weather: partially cloudy with highs near 68°F.

6. Day 6 — Tuesday, Nov 17, 2026 — Katakolon, Greece

   Katakolon, Greece is a scheduled port of call on day 6 of the 20-night Revered & Romantic Shores Istanbul to Rome cruise on Oceania Sirena. Expected weather: partially cloudy with highs near 65°F.

7. Day 7 — Wednesday, Nov 18, 2026 — Igoumenitsa, Greece

   Igoumenitsa, Greece is a scheduled port of call on day 7 of the 20-night Revered & Romantic Shores Istanbul to Rome cruise on Oceania Sirena. Expected weather: partially cloudy with highs near 62°F.

8. Day 8 — Thursday, Nov 19, 2026 — Kotor, Montenegro

   Kotor, Montenegro is a scheduled port of call on day 8 of the 20-night Revered & Romantic Shores Istanbul to Rome cruise on Oceania Sirena. Expected weather: partially cloudy with highs near 60°F.

9. Day 9 — Friday, Nov 20, 2026 — Dubrovnik, Croatia

   Dubrovnik, Croatia is a scheduled port of call on day 9 of the 20-night Revered & Romantic Shores Istanbul to Rome cruise on Oceania Sirena. Expected weather: partially cloudy with highs near 62°F.

10. Day 10 — Saturday, Nov 21, 2026 — Zadar, Croatia

    Zadar, Croatia is a scheduled port of call on day 10 of the 20-night Revered & Romantic Shores Istanbul to Rome cruise on Oceania Sirena. Expected weather: partially cloudy with highs near 59°F.

11. Day 11 — Sunday, Nov 22, 2026 — Venice, Italy

    Venice, Italy is a scheduled port of call on day 11 of the 20-night Revered & Romantic Shores Istanbul to Rome cruise on Oceania Sirena. Expected weather: partially cloudy with highs near 55°F.

12. Day 12 — Monday, Nov 23, 2026 — Koper, Slovenia

    Koper, Slovenia is a scheduled port of call on day 12 of the 20-night Revered & Romantic Shores Istanbul to Rome cruise on Oceania Sirena. Expected weather: partially cloudy with highs near 55°F.

13. Day 13 — Tuesday, Nov 24, 2026 — Rijeka, Croatia

    Rijeka, Croatia is a scheduled port of call on day 13 of the 20-night Revered & Romantic Shores Istanbul to Rome cruise on Oceania Sirena. Expected weather: partially cloudy with highs near 52°F.

14. Day 14 — Wednesday, Nov 25, 2026 — Split, Croatia

    Split, Croatia is a scheduled port of call on day 14 of the 20-night Revered & Romantic Shores Istanbul to Rome cruise on Oceania Sirena. Expected weather: partially cloudy with highs near 59°F.

15. Day 15 — Thursday, Nov 26, 2026 — Bari, Italy

    Bari, Italy is a scheduled port of call on day 15 of the 20-night Revered & Romantic Shores Istanbul to Rome cruise on Oceania Sirena. Expected weather: partially cloudy with highs near 61°F.

16. Day 16 — Friday, Nov 27, 2026 — Corfu, Greece

    Corfu, Greece is a scheduled port of call on day 16 of the 20-night Revered & Romantic Shores Istanbul to Rome cruise on Oceania Sirena. Expected weather: partially cloudy with highs near 61°F.

17. Day 17 — Saturday, Nov 28, 2026 — Crotone, Italy

    Crotone, Italy is a scheduled port of call on day 17 of the 20-night Revered & Romantic Shores Istanbul to Rome cruise on Oceania Sirena. Expected weather: partially cloudy with highs near 63°F.

18. Day 18 — Sunday, Nov 29, 2026 — La Valletta, Malta

    La Valletta, Malta is a scheduled port of call on day 18 of the 20-night Revered & Romantic Shores Istanbul to Rome cruise on Oceania Sirena. Expected weather: partially cloudy with highs near 66°F.

19. Day 19 — Monday, Nov 30, 2026 — Messina, Sicily

    Messina, Sicily is a scheduled port of call on day 19 of the 20-night Revered & Romantic Shores Istanbul to Rome cruise on Oceania Sirena. Expected weather: partially cloudy with highs near 62°F.

20. Day 20 — Tuesday, Dec 1, 2026 — Naples, Italy

    Naples, Italy is a scheduled port of call on day 20 of the 20-night Revered & Romantic Shores Istanbul to Rome cruise on Oceania Sirena. Expected weather: partially cloudy with highs near 61°F.

21. Day 21 — Wednesday, Dec 2, 2026 — Civitavecchia, Italy

    Civitavecchia, Italy is a scheduled port of call on day 21 of the 20-night Revered & Romantic Shores Istanbul to Rome cruise on Oceania Sirena. Expected weather: partially cloudy with highs near 59°F.