7-Night Cruise on Norwegian GemGreek Isles from Venice (Ravenna) to Athens: Santorini, Mykonos & Croatia - Weather

The Norwegian Gem sails a 7-night Greek Isles from Venice (Ravenna) to Athens: Santorini, Mykonos & Croatia itinerary with Norwegian Cruise Line (NCL), departing Ravenna, Italy on May 16, 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 Ravenna, Italy, Dubrovnik, Croatia, Kotor, Montenegro, with 5 more along the way. Use the day-by-day forecast below to plan what to pack for each stop.

1. Day 1 — Sunday, May 16, 2027 — Ravenna, Italy

   Ravenna, Italy is a scheduled port of call on day 1 of the 7-night Greek Isles from Venice (Ravenna) to Athens: Santorini, Mykonos & Croatia cruise on Norwegian Gem. Expected weather: partially cloudy with highs near 72°F.

2. Day 2 — Monday, May 17, 2027 — Dubrovnik, Croatia

   Dubrovnik, Croatia is a scheduled port of call on day 2 of the 7-night Greek Isles from Venice (Ravenna) to Athens: Santorini, Mykonos & Croatia cruise on Norwegian Gem. Expected weather: partially cloudy with highs near 70°F.

3. Day 3 — Tuesday, May 18, 2027 — Kotor, Montenegro

   Kotor, Montenegro is a scheduled port of call on day 3 of the 7-night Greek Isles from Venice (Ravenna) to Athens: Santorini, Mykonos & Croatia cruise on Norwegian Gem. Expected weather: partially cloudy with highs near 72°F.

4. Day 4 — Wednesday, May 19, 2027 — Corfu, Greece

   Corfu, Greece is a scheduled port of call on day 4 of the 7-night Greek Isles from Venice (Ravenna) to Athens: Santorini, Mykonos & Croatia cruise on Norwegian Gem. Expected weather: partially cloudy with highs near 69°F.

5. Day 5 — Thursday, May 20, 2027 — Katakolon, Greece

   Katakolon, Greece is a scheduled port of call on day 5 of the 7-night Greek Isles from Venice (Ravenna) to Athens: Santorini, Mykonos & Croatia cruise on Norwegian Gem. Expected weather: partially cloudy with highs near 72°F.

6. Day 6 — Friday, May 21, 2027 — Mykonos, Greece

   Mykonos, Greece is a scheduled port of call on day 6 of the 7-night Greek Isles from Venice (Ravenna) to Athens: Santorini, Mykonos & Croatia cruise on Norwegian Gem. Expected weather: partially cloudy with highs near 68°F.

7. Day 7 — Saturday, May 22, 2027 — Santorini, Greece

   Santorini, Greece is a scheduled port of call on day 7 of the 7-night Greek Isles from Venice (Ravenna) to Athens: Santorini, Mykonos & Croatia cruise on Norwegian Gem. Expected weather: partially cloudy with highs near 68°F.

8. Day 8 — Sunday, May 23, 2027 — Piraeus, Greece

   Piraeus, Greece is a scheduled port of call on day 8 of the 7-night Greek Isles from Venice (Ravenna) to Athens: Santorini, Mykonos & Croatia cruise on Norwegian Gem. Expected weather: partially cloudy with highs near 82°F.