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Loading Travel Forecast…Loading Travel Forecast…Loading Travel Forecast…Join Costa Cruises's Costa Diadema for a 13-night voyage on the Western Mediterranean from Cadiz route, setting out from Cadiz, Spain on September 30, 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 Cadiz, Spain, Lisbon, Portugal, Lisbon, Portugal, with 9 more along the way. The forecasts below break the weather down port by port.
Cadiz, Spain is a scheduled port of call on day 1 of the 13-night Western Mediterranean from Cadiz cruise on Costa Diadema. Expected weather: partially cloudy with highs near 75°F.
Lisbon, Portugal is a scheduled port of call on day 2 of the 13-night Western Mediterranean from Cadiz cruise on Costa Diadema. Expected weather: partially cloudy with highs near 74°F.
Lisbon, Portugal is a scheduled port of call on day 3 of the 13-night Western Mediterranean from Cadiz cruise on Costa Diadema. Expected weather: partially cloudy with highs near 74°F.
Gibraltar, UK is a scheduled port of call on day 4 of the 13-night Western Mediterranean from Cadiz cruise on Costa Diadema. Expected weather: partially cloudy with highs near 62°F.
Malaga, Spain is a scheduled port of call on day 5 of the 13-night Western Mediterranean from Cadiz cruise on Costa Diadema. Expected weather: partially cloudy with highs near 74°F.
Cartagena, Spain is a scheduled port of call on day 6 of the 13-night Western Mediterranean from Cadiz cruise on Costa Diadema. Expected weather: partially cloudy with highs near 74°F.
Day 7 of 14 is a day at sea aboard Costa Diadema, cruising between ports on the Western Mediterranean from Cadiz itinerary.
Marseille, France is a scheduled port of call on day 8 of the 13-night Western Mediterranean from Cadiz cruise on Costa Diadema. Expected weather: partially cloudy with highs near 68°F.
Savona, Italy is a scheduled port of call on day 9 of the 13-night Western Mediterranean from Cadiz cruise on Costa Diadema. Expected weather: partially cloudy with highs near 70°F.
Barcelona, Spain is a scheduled port of call on day 10 of the 13-night Western Mediterranean from Cadiz cruise on Costa Diadema. Expected weather: partially cloudy with highs near 72°F.
Day 11 of 14 is a day at sea aboard Costa Diadema, cruising between ports on the Western Mediterranean from Cadiz itinerary.
Tangier, Morocco is a scheduled port of call on day 12 of the 13-night Western Mediterranean from Cadiz cruise on Costa Diadema. Expected weather: partially cloudy with highs near 77°F.
Casablanca, Morocco is a scheduled port of call on day 13 of the 13-night Western Mediterranean from Cadiz cruise on Costa Diadema. Expected weather: partially cloudy with highs near 82°F.
Cadiz, Spain is a scheduled port of call on day 14 of the 13-night Western Mediterranean from Cadiz cruise on Costa Diadema. Expected weather: partially cloudy with highs near 73°F.
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