4-Night Cruise on Costa DiademaSouth America from Buenos Aires - Weather

Join Costa Cruises's Costa Diadema for a 4-night voyage on the South America from Buenos Aires route, setting out from Buenos Aires, Argentina on March 17, 2027. The route makes 4 scheduled stops. Travelers sailing in March can generally expect cooler, off-season conditions. Ports of call include Buenos Aires, Argentina, Montevideo, Uruguay, Itajai, Brazil, with 1 more along the way. The forecasts below break the weather down port by port.

1. Day 1 — Wednesday, Mar 17, 2027 — Buenos Aires, Argentina

   Buenos Aires, Argentina is a scheduled port of call on day 1 of the 4-night South America from Buenos Aires cruise on Costa Diadema. Expected weather: partially cloudy with highs near 77°F.

2. Day 2 — Thursday, Mar 18, 2027 — Montevideo, Uruguay

   Montevideo, Uruguay is a scheduled port of call on day 2 of the 4-night South America from Buenos Aires cruise on Costa Diadema. Expected weather: partially cloudy with highs near 72°F.

3. Day 3 — Friday, Mar 19, 2027 — At Sea

   Day 3 of 5 is a day at sea aboard Costa Diadema, cruising between ports on the South America from Buenos Aires itinerary.

4. Day 4 — Saturday, Mar 20, 2027 — Itajai, Brazil

   Itajai, Brazil is a scheduled port of call on day 4 of the 4-night South America from Buenos Aires cruise on Costa Diadema. Expected weather: partially cloudy with highs near 81°F.

5. Day 5 — Sunday, Mar 21, 2027 — Santos, Brazil

   Santos, Brazil is a scheduled port of call on day 5 of the 4-night South America from Buenos Aires cruise on Costa Diadema. Expected weather: partially cloudy with highs near 79°F.