Sea you in a moment
Hang tight. We're checking the weather.
Sea you in a moment
Hang tight. We're checking the weather.
Join Costa Cruises's Costa Serena for a 9-night voyage on the South America from Buenos Aires route, setting out from Buenos Aires, Argentina on December 27, 2026. The route makes 7 scheduled stops. Travelers sailing in December can generally expect cooler, off-season conditions. Ports of call include Buenos Aires, Argentina, Montevideo, Uruguay, Camboriu, Brazil, with 4 more along the way. The forecasts below break the weather down port by port.
Buenos Aires, Argentina is a scheduled port of call on day 1 of the 9-night South America from Buenos Aires cruise on Costa Serena. Expected weather: partially cloudy with highs near 82°F. Buenos Aires weather in December
Montevideo, Uruguay is a scheduled port of call on day 2 of the 9-night South America from Buenos Aires cruise on Costa Serena. Expected weather: partially cloudy with highs near 73°F.
Day 3 of 10 is a day at sea aboard Costa Serena, cruising between ports on the South America from Buenos Aires itinerary.
Camboriu, Brazil is a scheduled port of call on day 4 of the 9-night South America from Buenos Aires cruise on Costa Serena. Expected weather: partially cloudy with highs near 83°F. Balneário Camboriú weather in December
Ilha Grande, Brazil is a scheduled port of call on day 5 of the 9-night South America from Buenos Aires cruise on Costa Serena. Expected weather: partially cloudy with highs near 71°F.
Rio De Janeiro, Brazil is a scheduled port of call on day 6 of the 9-night South America from Buenos Aires cruise on Costa Serena. Expected weather: partially cloudy with highs near 91°F. Rio de Janeiro weather in January
Ilhabela, Brazil is a scheduled port of call on day 7 of the 9-night South America from Buenos Aires cruise on Costa Serena. Expected weather: partially cloudy with highs near 80°F.
Day 8 of 10 is a day at sea aboard Costa Serena, cruising between ports on the South America from Buenos Aires itinerary.
Day 9 of 10 is a day at sea aboard Costa Serena, cruising between ports on the South America from Buenos Aires itinerary.
Buenos Aires, Argentina is a scheduled port of call on day 10 of the 9-night South America from Buenos Aires cruise on Costa Serena. Expected weather: partially cloudy with highs near 82°F. Buenos Aires weather in January
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