4-Night Cruise on Costa DiademaMini Cruises from Barcelona - Weather

Join Costa Cruises's Costa Diadema for a 4-night voyage on the Mini Cruises from Barcelona route, setting out from Barcelona, Spain on September 21, 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, Marseille, France, Savona, Italy, with 1 more along the way. The forecasts below break the weather down port by port.

1. Day 1 — Monday, Sep 21, 2026 — Barcelona, Spain

   Barcelona, Spain is a scheduled port of call on day 1 of the 4-night Mini Cruises from Barcelona cruise on Costa Diadema. Expected weather: partially cloudy with highs near 75°F.

2. Day 2 — Tuesday, Sep 22, 2026 — Marseille, France

   Marseille, France is a scheduled port of call on day 2 of the 4-night Mini Cruises from Barcelona cruise on Costa Diadema. Expected weather: partially cloudy with highs near 70°F.

3. Day 3 — Wednesday, Sep 23, 2026 — Savona, Italy

   Savona, Italy is a scheduled port of call on day 3 of the 4-night Mini Cruises from Barcelona cruise on Costa Diadema. Expected weather: partially cloudy with highs near 73°F.

4. Day 4 — Friday, Sep 25, 2026 — Palma De Mallorca, Spain

   Palma De Mallorca, Spain is a scheduled port of call on day 4 of the 4-night Mini Cruises from Barcelona cruise on Costa Diadema. Expected weather: partially cloudy with highs near 76°F.