21-Night Cruise on Viking NeptuneMediterranean & Adriatic Sojourn - Weather

The Viking Neptune sails a 21-night Mediterranean & Adriatic Sojourn itinerary with Viking Cruises, departing Barcelona, Spain on September 26, 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 Barcelona, Spain, Tarragona, Spain, Sete, France, with 18 more along the way. Use the day-by-day forecast below to plan what to pack for each stop.

1. Day 1 — Saturday, Sep 26, 2026 — Barcelona, Spain

   Barcelona, Spain is a scheduled port of call on day 1 of the 21-night Mediterranean & Adriatic Sojourn cruise on Viking Neptune. Expected weather: partially cloudy with highs near 74°F.

2. Day 2 — Sunday, Sep 27, 2026 — Tarragona, Spain

   Tarragona, Spain is a scheduled port of call on day 2 of the 21-night Mediterranean & Adriatic Sojourn cruise on Viking Neptune. Expected weather: partially cloudy with highs near 74°F.

3. Day 3 — Monday, Sep 28, 2026 — Sete, France

   Sete, France is a scheduled port of call on day 3 of the 21-night Mediterranean & Adriatic Sojourn cruise on Viking Neptune. Expected weather: partially cloudy with highs near 70°F.

4. Day 4 — Tuesday, Sep 29, 2026 — Marseille, France

   Marseille, France is a scheduled port of call on day 4 of the 21-night Mediterranean & Adriatic Sojourn cruise on Viking Neptune. Expected weather: partially cloudy with highs near 70°F.

5. Day 5 — Wednesday, Sep 30, 2026 — Monaco

   Monaco is a scheduled port of call on day 5 of the 21-night Mediterranean & Adriatic Sojourn cruise on Viking Neptune. Expected weather: partially cloudy with highs near 73°F.

6. Day 6 — Thursday, Oct 1, 2026 — Livorno, Italy

   Livorno, Italy is a scheduled port of call on day 6 of the 21-night Mediterranean & Adriatic Sojourn cruise on Viking Neptune. Expected weather: partially cloudy with highs near 70°F.

7. Day 7 — Friday, Oct 2, 2026 — Livorno, Italy

   Livorno, Italy is a scheduled port of call on day 7 of the 21-night Mediterranean & Adriatic Sojourn cruise on Viking Neptune. Expected weather: partially cloudy with highs near 70°F.

8. Day 8 — Saturday, Oct 3, 2026 — Civitavecchia, Italy

   Civitavecchia, Italy is a scheduled port of call on day 8 of the 21-night Mediterranean & Adriatic Sojourn cruise on Viking Neptune. Expected weather: partially cloudy with highs near 71°F.

9. Day 9 — Sunday, Oct 4, 2026 — Naples, Italy

   Naples, Italy is a scheduled port of call on day 9 of the 21-night Mediterranean & Adriatic Sojourn cruise on Viking Neptune. Expected weather: partially cloudy with highs near 72°F.

10. Day 10 — Monday, Oct 5, 2026 — Messina, Sicily

    Messina, Sicily is a scheduled port of call on day 10 of the 21-night Mediterranean & Adriatic Sojourn cruise on Viking Neptune. Expected weather: partially cloudy with highs near 75°F.

11. Day 11 — Tuesday, Oct 6, 2026 — Crotone, Italy

    Crotone, Italy is a scheduled port of call on day 11 of the 21-night Mediterranean & Adriatic Sojourn cruise on Viking Neptune. Expected weather: partially cloudy with highs near 73°F.

12. Day 12 — Wednesday, Oct 7, 2026 — Bari, Italy

    Bari, Italy is a scheduled port of call on day 12 of the 21-night Mediterranean & Adriatic Sojourn cruise on Viking Neptune. Expected weather: partially cloudy with highs near 75°F.

13. Day 13 — Thursday, Oct 8, 2026 — Sibenik, Croatia

    Sibenik, Croatia is a scheduled port of call on day 13 of the 21-night Mediterranean & Adriatic Sojourn cruise on Viking Neptune. Expected weather: partially cloudy with highs near 69°F.

14. Day 14 — Friday, Oct 9, 2026 — Venice, Italy

    Venice, Italy is a scheduled port of call on day 14 of the 21-night Mediterranean & Adriatic Sojourn cruise on Viking Neptune. Expected weather: partially cloudy with highs near 65°F.

15. Day 15 — Saturday, Oct 10, 2026 — At Sea

    Day 15 of 22 is a day at sea aboard Viking Neptune, cruising between ports on the Mediterranean & Adriatic Sojourn itinerary.

16. Day 16 — Sunday, Oct 11, 2026 — Venice, Italy

    Venice, Italy is a scheduled port of call on day 16 of the 21-night Mediterranean & Adriatic Sojourn cruise on Viking Neptune.

17. Day 17 — Monday, Oct 12, 2026 — Zadar, Croatia

    Zadar, Croatia is a scheduled port of call on day 17 of the 21-night Mediterranean & Adriatic Sojourn cruise on Viking Neptune.

18. Day 18 — Tuesday, Oct 13, 2026 — Dubrovnik, Croatia

    Dubrovnik, Croatia is a scheduled port of call on day 18 of the 21-night Mediterranean & Adriatic Sojourn cruise on Viking Neptune.

19. Day 19 — Wednesday, Oct 14, 2026 — Kotor, Montenegro

    Kotor, Montenegro is a scheduled port of call on day 19 of the 21-night Mediterranean & Adriatic Sojourn cruise on Viking Neptune.

20. Day 20 — Thursday, Oct 15, 2026 — Corfu, Greece

    Corfu, Greece is a scheduled port of call on day 20 of the 21-night Mediterranean & Adriatic Sojourn cruise on Viking Neptune.

21. Day 21 — Friday, Oct 16, 2026 — Katakolon, Greece

    Katakolon, Greece is a scheduled port of call on day 21 of the 21-night Mediterranean & Adriatic Sojourn cruise on Viking Neptune.

22. Day 22 — Saturday, Oct 17, 2026 — Piraeus, Greece

    Piraeus, Greece is a scheduled port of call on day 22 of the 21-night Mediterranean & Adriatic Sojourn cruise on Viking Neptune.