MyCruiseForecast

Costa Cruises · 7 nights

Costa Diadema weather: 7-night cruise from Itajaí, January 30, 2027

The Costa Diadema (Costa Cruises) leaves Itajaí on January 30, 2027 for a 7-night cruise, with stops in Santos (Sao Paulo), Buenos Aires and Montevideo. It returns to Itajaí on February 6, 2027. Typical afternoon highs along the route run from 80°F to 87°F (27°C to 31°C), and 3 days are at sea, where seas are typically slight (around 3 ft).

Open the interactive forecast for this sailing

This page shows typical conditions for these dates. The interactive forecast adds a live day-by-day forecast, wave heights and weather alerts as the sailing gets closer.

Day-by-day itinerary and typical weather

Typical conditions for each date (2006–2025 climate record, ECMWF). Sea-day figures are approximate, blended from the ports on either side. Not a forecast.
DayPortHigh / lowRain daysWindTypical seas
Day 1Sat, Jan 30Itajaí Embark87 / 71°F30 / 22°C52%10 mph16 km/h–
Day 2Sun, Jan 31Santos (Sao Paulo)87 / 74°F31 / 24°C49%9 mph15 km/h–
Day 3Mon, Feb 1At sea86 / 72°F30 / 22°C36%8 mph14 km/h3 ft (0.9 m)Slight; rougher days up to 5 ft
Day 4Tue, Feb 2At sea86 / 72°F30 / 22°C36%8 mph14 km/h3 ft (0.9 m)Slight; rougher days up to 5 ft
Day 5Wed, Feb 3Buenos Aires84 / 69°F29 / 21°C23%14 mph22 km/h–
Day 6Thu, Feb 4Montevideo80 / 69°F27 / 20°C28%16 mph26 km/h–
Day 7Fri, Feb 5At sea83 / 70°F29 / 21°C36%10 mph16 km/h3 ft (0.8 m)Slight; rougher days up to 4 ft
Day 8Sat, Feb 6Itajaí Disembark87 / 71°F30 / 22°C43%10 mph16 km/h–

Seas are significant wave height, the average of the highest third of waves. What that means on board.

Ports on this cruise

More Costa Diadema sailings

This is the last scheduled sailing we have for this ship.

All Costa Diadema sailings · All Costa Cruises ships