Costa Diadema

About this ship

The Costa Diadema is a majestic cruise ship in the Costa fleet, accommodating approximately 4,947 passengers. Known for its elegant design and diverse onboard experiences, it features a stunning panoramic pool area and a unique "Café Illy" for coffee lovers, making it ideal for families and social travelers seeking relaxation and entertainment.

Itajaí to Itajaí • 7 nights • Departs Mar. 21, 2026

Current Location Future Locations Local Time at Ports Packing List

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Units: Imperial Metric

Cruise Weather Brief

Day 1

Saturday Mar. 21, 2026

Itajaí, Brazil

Sea Conditions Temperature Trend

High 84°F / Low 72°F

Clear sky

Feels like

High 87°F • Low 74°F

Wind

11 mph (gust 16 mph)

Humidity

56%

Probability of Precipitation

20%

Cloud cover

Sunrise / Sunset

6:18 AM • 6:25 PM

Other ships at location: none

4,947 total passengers

Day 2

Sunday Mar. 22, 2026

Santos, Brazil

Sea Conditions Temperature Trend Port Guide

High 78°F / Low 70°F

Clear sky

Feels like

High 79°F • Low 74°F

Wind

6 mph (gust 8 mph)

Humidity

72%

Probability of Precipitation

Cloud cover

Sunrise / Sunset

6:09 AM • 6:14 PM

Other ships at location: Celebrity Equinox, MSC Preziosa

11,299 total passengers

Day 3

Sea Day

Monday Mar. 23, 2026

At Sea: Santos, Brazil → Buenos Aires, Argentina

Sea Conditions Temperature Trend

Weather forecast for days at sea available now for Cruise Outlook Premium users.

Day 4

Sea Day

Tuesday Mar. 24, 2026

At Sea: Santos, Brazil → Buenos Aires, Argentina

Sea Conditions Temperature Trend

Weather forecast for days at sea available now for Cruise Outlook Premium users.

Day 5

Wednesday Mar. 25, 2026

Buenos Aires, Argentina

Temperature Trend Port Guide

High 72°F / Low 63°F

Light rain

Feels like

High 64°F • Low 66°F

Wind

16 mph (gust 32 mph)

Humidity

90%

Probability of Precipitation

100%

Cloud cover

100%

Sunrise / Sunset

7:00 AM • 6:58 PM

Other ships at location: none

4,947 total passengers

Day 6

Thursday Mar. 26, 2026

Montevideo, Uruguay

Port Guide

Weather forecast available now for Cruise Outlook Premium users and on Mar. 19, 2026 for free users.

Other ships at location: none

4,947 total passengers

Day 7

Sea Day

Friday Mar. 27, 2026

At Sea: Montevideo, Uruguay → Itajaí, Brazil

Weather forecast available now for Cruise Outlook Premium users and on Mar. 20, 2026 for free users.

Day 8

Saturday Mar. 28, 2026

Itajaí, Brazil

Weather forecast available now for Cruise Outlook Premium users and on Mar. 21, 2026 for free users.

Other ships at location: none

4,947 total passengers

Weather data provided by OpenWeather

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