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Loading Travel Forecast…Loading Travel Forecast…Loading Travel Forecast…The Costa Diadema sails a 12-night Western Mediterranean from Barcelona itinerary with Costa Cruises, departing Barcelona, Spain on October 19, 2026. It's a classic Mediterranean cruise. Travelers sailing in October can generally expect mild, changeable weather that can turn cool and wet. Ports of call include Barcelona, Spain, Cadiz, Spain, Lisbon, Portugal, with 7 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 12-night Western Mediterranean from Barcelona cruise on Costa Diadema. Expected weather: partially cloudy with highs near 70°F.
Day 2 of 13 is a day at sea aboard Costa Diadema, cruising between ports on the Western Mediterranean from Barcelona itinerary.
Cadiz, Spain is a scheduled port of call on day 3 of the 12-night Western Mediterranean from Barcelona cruise on Costa Diadema. Expected weather: partially cloudy with highs near 72°F.
Lisbon, Portugal is a scheduled port of call on day 4 of the 12-night Western Mediterranean from Barcelona cruise on Costa Diadema. Expected weather: partially cloudy with highs near 69°F.
Lisbon, Portugal is a scheduled port of call on day 5 of the 12-night Western Mediterranean from Barcelona cruise on Costa Diadema. Expected weather: partially cloudy with highs near 69°F.
Gibraltar, UK is a scheduled port of call on day 6 of the 12-night Western Mediterranean from Barcelona cruise on Costa Diadema. Expected weather: partially cloudy with highs near 57°F.
Malaga, Spain is a scheduled port of call on day 7 of the 12-night Western Mediterranean from Barcelona cruise on Costa Diadema. Expected weather: partially cloudy with highs near 71°F.
Cartagena, Spain is a scheduled port of call on day 8 of the 12-night Western Mediterranean from Barcelona cruise on Costa Diadema. Expected weather: partially cloudy with highs near 71°F.
Day 9 of 13 is a day at sea aboard Costa Diadema, cruising between ports on the Western Mediterranean from Barcelona itinerary.
Marseille, France is a scheduled port of call on day 10 of the 12-night Western Mediterranean from Barcelona cruise on Costa Diadema. Expected weather: partially cloudy with highs near 65°F.
Savona, Italy is a scheduled port of call on day 11 of the 12-night Western Mediterranean from Barcelona cruise on Costa Diadema. Expected weather: partially cloudy with highs near 66°F.
Day 12 of 13 is a day at sea aboard Costa Diadema, cruising between ports on the Western Mediterranean from Barcelona itinerary.
Barcelona, Spain is a scheduled port of call on day 13 of the 12-night Western Mediterranean from Barcelona cruise on Costa Diadema. Expected weather: partially cloudy with highs near 66°F.
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