9-Night Cruise on Norwegian VivaGreek Isles from Istanbul to Rome: Mykonos, Kusadasi & Athens - Weather

The Norwegian Viva sails a 9-night Greek Isles from Istanbul to Rome: Mykonos, Kusadasi & Athens itinerary with Norwegian Cruise Line (NCL), departing Istanbul, Turkey on September 7, 2026. It's a classic Mediterranean cruise. Travelers sailing in September can generally expect mild, changeable weather that can turn cool and wet. Ports of call include Istanbul, Turkey, Kusadasi, Turkey, Santorini, Greece, with 7 more along the way. Use the day-by-day forecast below to plan what to pack for each stop.

1. Day 1 — Monday, Sep 7, 2026 — Istanbul, Turkey

   Istanbul, Turkey is a scheduled port of call on day 1 of the 9-night Greek Isles from Istanbul to Rome: Mykonos, Kusadasi & Athens cruise on Norwegian Viva.

2. Day 2 — Tuesday, Sep 8, 2026 — Kusadasi, Turkey

   Kusadasi, Turkey is a scheduled port of call on day 2 of the 9-night Greek Isles from Istanbul to Rome: Mykonos, Kusadasi & Athens cruise on Norwegian Viva.

3. Day 3 — Wednesday, Sep 9, 2026 — Santorini, Greece

   Santorini, Greece is a scheduled port of call on day 3 of the 9-night Greek Isles from Istanbul to Rome: Mykonos, Kusadasi & Athens cruise on Norwegian Viva.

4. Day 4 — Thursday, Sep 10, 2026 — Mykonos, Greece

   Mykonos, Greece is a scheduled port of call on day 4 of the 9-night Greek Isles from Istanbul to Rome: Mykonos, Kusadasi & Athens cruise on Norwegian Viva.

5. Day 5 — Friday, Sep 11, 2026 — Piraeus, Greece

   Piraeus, Greece is a scheduled port of call on day 5 of the 9-night Greek Isles from Istanbul to Rome: Mykonos, Kusadasi & Athens cruise on Norwegian Viva.

6. Day 6 — Saturday, Sep 12, 2026 — Katakolon, Greece

   Katakolon, Greece is a scheduled port of call on day 6 of the 9-night Greek Isles from Istanbul to Rome: Mykonos, Kusadasi & Athens cruise on Norwegian Viva.

7. Day 7 — Sunday, Sep 13, 2026 — La Valletta, Malta

   La Valletta, Malta is a scheduled port of call on day 7 of the 9-night Greek Isles from Istanbul to Rome: Mykonos, Kusadasi & Athens cruise on Norwegian Viva.

8. Day 8 — Monday, Sep 14, 2026 — Catania, Sicily

   Catania, Sicily is a scheduled port of call on day 8 of the 9-night Greek Isles from Istanbul to Rome: Mykonos, Kusadasi & Athens cruise on Norwegian Viva.

9. Day 9 — Tuesday, Sep 15, 2026 — Salerno, Italy

   Salerno, Italy is a scheduled port of call on day 9 of the 9-night Greek Isles from Istanbul to Rome: Mykonos, Kusadasi & Athens cruise on Norwegian Viva.

10. Day 10 — Wednesday, Sep 16, 2026 — Civitavecchia, Italy

    Civitavecchia, Italy is a scheduled port of call on day 10 of the 9-night Greek Isles from Istanbul to Rome: Mykonos, Kusadasi & Athens cruise on Norwegian Viva.