21-Night Cruise on Sun PrincessThe Best of the Mediterranean - Weather

The Sun Princess sails a 21-night The Best of the Mediterranean itinerary with Princess Cruises, departing Barcelona, Spain on May 23, 2027. It's a classic Mediterranean cruise. Travelers sailing in May can generally expect mild, changeable weather that can turn cool and wet. Ports of call include Barcelona, Spain, Marseille, France, Ajaccio, Corsica, with 14 more along the way. Use the day-by-day forecast below to plan what to pack for each stop.

1. Day 1 — Sunday, May 23, 2027 — Barcelona, Spain

   Barcelona, Spain is a scheduled port of call on day 1 of the 21-night The Best of the Mediterranean cruise on Sun Princess. Expected weather: partially cloudy with highs near 67°F. Barcelona weather in May

2. Day 2 — Monday, May 24, 2027 — At Sea

   Day 2 of 22 is a day at sea aboard Sun Princess, cruising between ports on the The Best of the Mediterranean itinerary.

3. Day 3 — Tuesday, May 25, 2027 — Marseille, France

   Marseille, France is a scheduled port of call on day 3 of the 21-night The Best of the Mediterranean cruise on Sun Princess. Expected weather: partially cloudy with highs near 65°F. Marseille weather in May

4. Day 4 — Wednesday, May 26, 2027 — Ajaccio, Corsica

   Ajaccio, Corsica is a scheduled port of call on day 4 of the 21-night The Best of the Mediterranean cruise on Sun Princess. Expected weather: partially cloudy with highs near 74°F.

5. Day 5 — Thursday, May 27, 2027 — Genoa, Italy

   Genoa, Italy is a scheduled port of call on day 5 of the 21-night The Best of the Mediterranean cruise on Sun Princess. Expected weather: partially cloudy with highs near 71°F. Genoa weather in May

6. Day 6 — Friday, May 28, 2027 — La Spezia, Italy

   La Spezia, Italy is a scheduled port of call on day 6 of the 21-night The Best of the Mediterranean cruise on Sun Princess. Expected weather: partially cloudy with highs near 70°F.

7. Day 7 — Saturday, May 29, 2027 — La Spezia, Italy

   La Spezia, Italy is a scheduled port of call on day 7 of the 21-night The Best of the Mediterranean cruise on Sun Princess. Expected weather: partially cloudy with highs near 70°F.

8. Day 8 — Sunday, May 30, 2027 — Civitavecchia, Italy

   Civitavecchia, Italy is a scheduled port of call on day 8 of the 21-night The Best of the Mediterranean cruise on Sun Princess. Expected weather: partially cloudy with highs near 69°F. Civitavecchia (Rome) weather in May

9. Day 9 — Monday, May 31, 2027 — Naples, Italy

   Naples, Italy is a scheduled port of call on day 9 of the 21-night The Best of the Mediterranean cruise on Sun Princess. Expected weather: partially cloudy with highs near 70°F. Naples weather in May

10. Day 10 — Tuesday, Jun 1, 2027 — At Sea

    Day 10 of 22 is a day at sea aboard Sun Princess, cruising between ports on the The Best of the Mediterranean itinerary.

11. Day 11 — Wednesday, Jun 2, 2027 — Chania, Crete

    Chania, Crete is a scheduled port of call on day 11 of the 21-night The Best of the Mediterranean cruise on Sun Princess. Expected weather: partially cloudy with highs near 75°F.

12. Day 12 — Thursday, Jun 3, 2027 — At Sea

    Day 12 of 22 is a day at sea aboard Sun Princess, cruising between ports on the The Best of the Mediterranean itinerary.

13. Day 13 — Friday, Jun 4, 2027 — Kusadasi, Turkey

    Kusadasi, Turkey is a scheduled port of call on day 13 of the 21-night The Best of the Mediterranean cruise on Sun Princess. Expected weather: partially cloudy with highs near 85°F.

14. Day 14 — Saturday, Jun 5, 2027 — Mykonos, Greece

    Mykonos, Greece is a scheduled port of call on day 14 of the 21-night The Best of the Mediterranean cruise on Sun Princess. Expected weather: clear with highs near 72°F.

15. Day 15 — Sunday, Jun 6, 2027 — Piraeus, Greece

    Piraeus, Greece is a scheduled port of call on day 15 of the 21-night The Best of the Mediterranean cruise on Sun Princess. Expected weather: partially cloudy with highs near 87°F. Piraeus (Athens) weather in June

16. Day 16 — Monday, Jun 7, 2027 — Iraklion, Greece

    Iraklion, Greece is a scheduled port of call on day 16 of the 21-night The Best of the Mediterranean cruise on Sun Princess. Heraklion weather in June

17. Day 17 — Tuesday, Jun 8, 2027 — At Sea

    Day 17 of 22 is a day at sea aboard Sun Princess, cruising between ports on the The Best of the Mediterranean itinerary.

18. Day 18 — Wednesday, Jun 9, 2027 — Bar, Montenegro

    Bar, Montenegro is a scheduled port of call on day 18 of the 21-night The Best of the Mediterranean cruise on Sun Princess.

19. Day 19 — Thursday, Jun 10, 2027 — Corfu, Greece

    Corfu, Greece is a scheduled port of call on day 19 of the 21-night The Best of the Mediterranean cruise on Sun Princess. Corfu weather in June

20. Day 20 — Friday, Jun 11, 2027 — Messina, Sicily

    Messina, Sicily is a scheduled port of call on day 20 of the 21-night The Best of the Mediterranean cruise on Sun Princess. Messina weather in June

21. Day 21 — Saturday, Jun 12, 2027 — At Sea

    Day 21 of 22 is a day at sea aboard Sun Princess, cruising between ports on the The Best of the Mediterranean itinerary.

22. Day 22 — Sunday, Jun 13, 2027 — Barcelona, Spain

    Barcelona, Spain is a scheduled port of call on day 22 of the 21-night The Best of the Mediterranean cruise on Sun Princess. Barcelona weather in June