
Plan Your Cruise With Free Weather Forecasts
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Loading Travel Forecast…The Costa Serena sails a 20-night Eastern Mediterranean from Piraeus | Athens itinerary with Costa Cruises, departing Piraeus, Greece on May 20, 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 Piraeus, Greece, Santorini, Greece, Mykonos, Greece, with 16 more along the way. Use the day-by-day forecast below to plan what to pack for each stop.
Piraeus, Greece is a scheduled port of call on day 1 of the 20-night Eastern Mediterranean from Piraeus | Athens cruise on Costa Serena. Expected weather: partially cloudy with highs near 81°F.
Santorini, Greece is a scheduled port of call on day 2 of the 20-night Eastern Mediterranean from Piraeus | Athens cruise on Costa Serena. Expected weather: partially cloudy with highs near 68°F.
Mykonos, Greece is a scheduled port of call on day 3 of the 20-night Eastern Mediterranean from Piraeus | Athens cruise on Costa Serena. Expected weather: partially cloudy with highs near 68°F.
La Valletta, Malta is a scheduled port of call on day 4 of the 20-night Eastern Mediterranean from Piraeus | Athens cruise on Costa Serena. Expected weather: partially cloudy with highs near 69°F.
Ibiza, Spain is a scheduled port of call on day 5 of the 20-night Eastern Mediterranean from Piraeus | Athens cruise on Costa Serena. Expected weather: partially cloudy with highs near 69°F.
Valencia, Spain is a scheduled port of call on day 6 of the 20-night Eastern Mediterranean from Piraeus | Athens cruise on Costa Serena. Expected weather: partially cloudy with highs near 78°F.
Palma De Mallorca, Spain is a scheduled port of call on day 7 of the 20-night Eastern Mediterranean from Piraeus | Athens cruise on Costa Serena. Expected weather: partially cloudy with highs near 70°F.
Marseille, France is a scheduled port of call on day 8 of the 20-night Eastern Mediterranean from Piraeus | Athens cruise on Costa Serena. Expected weather: partially cloudy with highs near 66°F.
Savona, Italy is a scheduled port of call on day 9 of the 20-night Eastern Mediterranean from Piraeus | Athens cruise on Costa Serena. Expected weather: partially cloudy with highs near 69°F.
Civitavecchia, Italy is a scheduled port of call on day 10 of the 20-night Eastern Mediterranean from Piraeus | Athens cruise on Costa Serena. Expected weather: partially cloudy with highs near 69°F.
Naples, Italy is a scheduled port of call on day 11 of the 20-night Eastern Mediterranean from Piraeus | Athens cruise on Costa Serena. Expected weather: partially cloudy with highs near 70°F.
Cagliari, Sardinia is a scheduled port of call on day 12 of the 20-night Eastern Mediterranean from Piraeus | Athens cruise on Costa Serena. Expected weather: partially cloudy with highs near 74°F.
Palermo, Sicily is a scheduled port of call on day 13 of the 20-night Eastern Mediterranean from Piraeus | Athens cruise on Costa Serena. Expected weather: partially cloudy with highs near 82°F.
La Valletta, Malta is a scheduled port of call on day 14 of the 20-night Eastern Mediterranean from Piraeus | Athens cruise on Costa Serena. Expected weather: partially cloudy with highs near 71°F.
Catania, Sicily is a scheduled port of call on day 15 of the 20-night Eastern Mediterranean from Piraeus | Athens cruise on Costa Serena. Expected weather: partially cloudy with highs near 75°F.
Taranto, Italy is a scheduled port of call on day 16 of the 20-night Eastern Mediterranean from Piraeus | Athens cruise on Costa Serena. Expected weather: partially cloudy with highs near 75°F.
Argostoli, Greece is a scheduled port of call on day 17 of the 20-night Eastern Mediterranean from Piraeus | Athens cruise on Costa Serena. Expected weather: partially cloudy with highs near 74°F.
Mykonos, Greece is a scheduled port of call on day 18 of the 20-night Eastern Mediterranean from Piraeus | Athens cruise on Costa Serena. Expected weather: clear with highs near 71°F.
Piraeus, Greece is a scheduled port of call on day 19 of the 20-night Eastern Mediterranean from Piraeus | Athens cruise on Costa Serena. Expected weather: partially cloudy with highs near 87°F.
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