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The Costa Diadema sails a 11-night Western Mediterranean from Barcelona itinerary with Costa Cruises, departing Barcelona, Spain on September 28, 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, Cadiz, Spain, Lisbon, Portugal, with 6 more along the way. Use the day-by-day forecast below to plan what to pack for each stop.
Barcelona, Spain is a scheduled port of call on day 1 of the 11-night Western Mediterranean from Barcelona cruise on Costa Diadema.
Cadiz, Spain is a scheduled port of call on day 2 of the 11-night Western Mediterranean from Barcelona cruise on Costa Diadema.
Lisbon, Portugal is a scheduled port of call on day 3 of the 11-night Western Mediterranean from Barcelona cruise on Costa Diadema.
Gibraltar, UK is a scheduled port of call on day 4 of the 11-night Western Mediterranean from Barcelona cruise on Costa Diadema.
Malaga, Spain is a scheduled port of call on day 5 of the 11-night Western Mediterranean from Barcelona cruise on Costa Diadema.
Cartagena, Spain is a scheduled port of call on day 6 of the 11-night Western Mediterranean from Barcelona cruise on Costa Diadema.
Marseille, France is a scheduled port of call on day 7 of the 11-night Western Mediterranean from Barcelona cruise on Costa Diadema.
Savona, Italy is a scheduled port of call on day 8 of the 11-night Western Mediterranean from Barcelona cruise on Costa Diadema.
Barcelona, Spain is a scheduled port of call on day 9 of the 11-night Western Mediterranean from Barcelona cruise on Costa Diadema.
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Barcelona: Sagrada Familia Skip-the-Line Guided Tour and Tickets
Make your visit to the Sagrada Familia stress-free with our comprehensive all-inclusive package, featuring tickets to th...
Park Guell Guided Tour with Skip the Line Ticket
Enjoy a guided Park Guell tour with skip the line Park Guell tickets, and get beguiled by the breathtaking views of Barc...
Sintra and Cascais Small-Group Day Trip from Lisbon
Experience the natural and historical beauty of Portugal on a small-group day trip from Lisbon to Sintra and Cascais. Ju...
Private Lisbon Sightseeing Tuk-Tuk Tour: Alfama, Belém & More
We offer two pickup options for free. If you desire to start the tour in the city center, choose Hard Rock Cafe, if you ...
Gibraltar Private Tour
Experience the lively antics of the Barbary macaques in the famous Monkey Zone, where their playful behavior brings joy ...
Dolphin Watching in Gibraltar with Dolphin Safari
Sail first class on the blue boat. VIP treatment for all our passengers. Set sail for almost guaranteed dolphin sighting...
From Malaga Caminito del Rey Guided Tour with transportation
- On this trip, you will taken to the famous "Caminito del Rey", known as one of the most dangerous trails in the world!...
Dolphin Sightseeing Boat Tour from Benalmadena
Take in the stunning views of the Alboran Sea and Costa del Sol. Don’t miss the chance to witness dolphins in their natu...
Cartagena and Murcia - full day shore excursion (cruisers only)
Discover the surprising charms and fascinating history of Cartagena, one of southern Spain’s hidden gems! Enjoy a guided...
3 Tapas Cartagena walking tour
Discover why Cartagena stands out as a Mediterranean destination on this walking tour through its historic center. Explo...
Marseille Food Tour – Full Meal of Local Tastes by Do Eat Better
Our Marseille Food Tour is a walking tour in small groups around the Vieux Port area. You will guided by a Local Expert,...
Guided kayak excursion in creeks
The half-day guided tour is a unique experience. After putting the kayaks in the water and leaving the port of l'Estaque...