Costa Cruises · 3 nights
Costa Diadema weather: 3-night cruise from Itajaí, December 9, 2026
The Costa Diadema (Costa Cruises) leaves Itajaí on December 9, 2026 for a 3-night cruise, with stops in Santos (Sao Paulo). It returns to Itajaí on December 12, 2026. Typical afternoon highs along the route run from 82°F to 83°F (28°C to 28°C), and 1 day is at sea, where seas are typically moderate (around 4 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
| Day | Port | High / low | Rain days | Wind | Typical seas |
|---|---|---|---|---|---|
| Day 1Wed, Dec 9 | Itajaí Embark | 83 / 69°F28 / 20°C | 39% | 11 mph17 km/h | – |
| Day 2Thu, Dec 10 | At sea | 83 / 70°F28 / 21°C | 45% | 7 mph12 km/h | 4 ft (1.3 m)Moderate; rougher days up to 6 ft |
| Day 3Fri, Dec 11 | Santos (Sao Paulo) | 82 / 71°F28 / 21°C | 51% | 9 mph15 km/h | – |
| Day 4Sat, Dec 12 | Itajaí Disembark | 83 / 69°F28 / 20°C | 39% | 11 mph17 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
- December 12, 2026: 4 nights from Itajaí
- December 16, 2026: 3 nights from Itajaí
- December 19, 2026: 7 nights from Itajaí
- December 26, 2026: 7 nights from Itajaí
- January 2, 2027: 7 nights from Itajaí
- January 9, 2027: 7 nights from Itajaí