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Loading Travel Forecast…Loading Travel Forecast…Loading Travel Forecast…The Costa Serena sails a 14-night World Cruise from San Antonio | Santiago itinerary with Costa Cruises, departing San Antonio, Chile on December 8, 2026. The route makes 8 scheduled stops. Travelers sailing in December can generally expect cooler, off-season conditions. Ports of call include San Antonio, Chile, Puerto Montt, Chile, Puerto Chacabuco, Chile, with 5 more along the way. Use the day-by-day forecast below to plan what to pack for each stop.
San Antonio, Chile is a scheduled port of call on day 1 of the 14-night World Cruise from San Antonio | Santiago cruise on Costa Serena. Expected weather: clear with highs near 79°F.
Puerto Montt, Chile is a scheduled port of call on day 2 of the 14-night World Cruise from San Antonio | Santiago cruise on Costa Serena.
Puerto Chacabuco, Chile is a scheduled port of call on day 3 of the 14-night World Cruise from San Antonio | Santiago cruise on Costa Serena.
Punta Arenas, Chile is a scheduled port of call on day 4 of the 14-night World Cruise from San Antonio | Santiago cruise on Costa Serena.
Ushuaia, Argentina is a scheduled port of call on day 5 of the 14-night World Cruise from San Antonio | Santiago cruise on Costa Serena. Expected weather: partially cloudy with highs near 56°F.
Ushuaia, Argentina is a scheduled port of call on day 6 of the 14-night World Cruise from San Antonio | Santiago cruise on Costa Serena.
Puerto Madryn, Argentina is a scheduled port of call on day 7 of the 14-night World Cruise from San Antonio | Santiago cruise on Costa Serena.
Buenos Aires, Argentina is a scheduled port of call on day 8 of the 14-night World Cruise from San Antonio | Santiago cruise on Costa Serena.
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