Costa Diadema itinerary map for March 26, 2025 (7 nights)
Costa Diadema itinerary map for March 26, 2025 (7 nights)
7 nights · 4 ports
Round-trip · Buenos Aires, Argentina
CostaCosta Diadema

Costa Diadema
March 26, 2025

7-Night South America aboard Costa Diadema · Departing March 26, 2025 from the Port of Buenos Aires, Argentina.

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This 7-night cruise aboard the Diadema departs from Buenos Aires, Argentina on Wednesday, March 26, 2025 and returns on Wednesday, Apr 2nd. March weather across this route averages 91°/57°F.

The itinerary safety score for this sailing is 6.1 out of 10 — Buenos Aires (5.6), Santos (5.3), Itajai (6.5), Montevideo (6.9).

Cruise Length
7
Night Cruise
Departure Port
Buenos Aires
Argentina
Port Stops
4
Sea Days
3

Cruise Price - Costa Diadema March 26, 2025

Costa Diadema · March 26, 2025

The graph below tracks historic price of the Costa Diadema cruise ship departing March 26, 2025. The most recent price for this sailing starts at $993 ($142 per night) for an Inside Cabin. Compared to the average price of $943 ($135 per night), this represents a recent increase of 5%.

🛏️
Inside
$993
🌊
Oceanview
$1,133
🌅
Balcony
$1,283
👑
Suite
$1,423

Price History – Costa Diadema March 26, 2025

inside cabin
Costa Diadema
March 26, 2025
$993
5% vs avg: $943

Prices change often and may differ at checkout. Click to see the latest available price.

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Cruise Itinerary Map - 7 Night South America (Buenos Aires Roundtrip)

Costa Diadema · March 26, 2025

The Costa Diadema sails on March 26, 2025 for a 7 Night South America (Buenos Aires Roundtrip). The ship will depart the port of Buenos Aires, Argentina at 7:00 PM and will return to the port of Buenos Aires, Argentina on Apr 2nd at 8:00 AM. During the 8-day journey, the Costa Diadema will visit 3 additional ports and will spend 3 days at sea.

Cruise itinerary route

7 Night South America (Buenos Aires Roundtrip)

  • MAR26
    Buenos Aires, Argentina
    Buenos Aires, Argentina
    A: — - D: 7:00 PM
  • MAR27
    At Sea
    At Sea
    A: — - D: —
  • MAR28
    At Sea
    At Sea
    A: — - D: —
  • MAR29
    Santos (sao Paulo), Brazil
    Santos (sao Paulo), Brazil
    A: 8:00 AM - D: 5:00 PM
  • MAR30
    Itajai, Brazil
    Itajai, Brazil
    A: 8:00 AM - D: 4:00 PM
  • MAR31
    At Sea
    At Sea
    A: — - D: —
  • APR01
    Montevideo, Uruguay
    Montevideo, Uruguay
    A: 9:00 AM - D: 6:00 PM
  • APR02
    Buenos Aires, Argentina
    Buenos Aires, Argentina
    A: 8:00 AM - D: —
Loading map...

Costa Diadema Cruise Ports

March 26, 2025 · 7 Night South America (Buenos Aires Roundtrip)

Buenos Aires, Argentina — Day 1 of Costa Diadema March 26, 2025 cruise
Day 1•Wednesday, Mar 26

Buenos Aires, Argentina

Arrival: —•Departure: 7:00 PM

Buenos Aires, Argentina, offers docking at Buenos Aires Port. Travelers explore La Boca and Recoleta Cemetery. Excursions visit Tigre Delta. Local markets sell empanadas. The peak season, December to March, brings warm weather for city tours. Photography captures colorful barrios and Río de la Plata vistas. Dining onboard includes asado, an Argentine favorite. Souvenirs, like tango crafts, are sold in ship shops. Briefings cover Peronist history. Light clothing and sun protection suit the temperate climate, while comfortable shoes enhance city walks. Buenos Aires’ vibrant charm offers a lively Argentine stop. Cruise travelers enjoy a mix of cultural landmarks and scenic rivers, making Buenos Aires an engaging destination.

Port Info LinkPort Excursions Link
Day 2 at sea — Costa Diadema March 26, 2025 itinerary
Day 2•Thursday, Mar 27

At Sea

Arrival: 12:00 AM•Departure: 11:59 PM

Day at sea aboard the Diadema — explore the ship's signature dining, entertainment, and onboard activities.

Day 3 at sea — Costa Diadema March 26, 2025 itinerary
Day 3•Friday, Mar 28

At Sea

Arrival: 12:00 AM•Departure: 11:59 PM

Day at sea aboard the Diadema — explore the ship's signature dining, entertainment, and onboard activities.

Santos (sao Paulo), Brazil — Day 4 of Costa Diadema March 26, 2025 cruise
Day 4•Saturday, Mar 29

Santos (sao Paulo), Brazil

Arrival: 8:00 AM•Departure: 5:00 PM

Santos (Sao Paulo), Brazil, offers docking at Santos Port with excursions to Sao Paulo. Travelers explore Ibirapuera Park and Sé Cathedral. Excursions visit Guarujá’s beaches. Local markets sell feijoada. The peak season, December to March, brings warm weather for city tours. Photography captures urban landmarks and Atlantic vistas. Dining onboard includes pão de queijo, a Brazilian favorite. Souvenirs, like coffee beans, are sold in ship shops. Briefings cover Paulista history. Light clothing and sun protection suit the tropical climate, while comfortable shoes enhance city walks. Santos’ urban gateway offers a vibrant Brazilian stop. Cruise travelers enjoy a mix of metropolitan culture and coastal beauty, making Santos an engaging destination for exploration.

Port Info LinkPort Excursions Link
Itajai, Brazil — Day 5 of Costa Diadema March 26, 2025 cruise
Day 5•Sunday, Mar 30

Itajai, Brazil

Arrival: 8:00 AM•Departure: 4:00 PM

Itajai, Brazil, has docking at Itajai Port. Travelers explore Balneário Camboriú’s beaches and cable car. Excursions visit Blumenau’s German heritage sites. Local markets sell coxinhas. The peak season, December to April, brings warm weather. Photography captures Atlantic shores and urban skylines. Dining onboard includes pão de queijo, a Brazilian snack. Souvenirs, like lace crafts, are sold in ship shops. Briefings cover Santa Catarina’s history. Light clothing and sun protection suit the tropical climate. Comfortable shoes enhance beach walks. Itajai’s coastal vibrancy offers a lively Brazilian stop, blending beaches with cultural charm.

Port Info LinkPort Excursions Link
Day 6 at sea — Costa Diadema March 26, 2025 itinerary
Day 6•Monday, Mar 31

At Sea

Arrival: 12:00 AM•Departure: 11:59 PM

Day at sea aboard the Diadema — explore the ship's signature dining, entertainment, and onboard activities.

Montevideo, Uruguay — Day 7 of Costa Diadema March 26, 2025 cruise
Day 7•Tuesday, Apr 1

Montevideo, Uruguay

Arrival: 9:00 AM•Departure: 6:00 PM

Montevideo, Uruguay, offers docking at Montevideo Port. Travelers explore Plaza Independencia and Pocitos Beach. Excursions visit Colonia del Sacramento. Local markets sell asado. The peak season, December to March, brings warm weather for coastal tours. Photography captures colonial architecture and Río de la Plata vistas. Dining onboard includes chivito, a Uruguayan favorite. Souvenirs, like mate gourds, are sold in ship shops. Briefings cover Gaucho history. Light clothing and sun protection suit the temperate climate, while comfortable shoes enhance city walks. Montevideo’s cultural charm offers a vibrant Uruguayan stop. Cruise travelers enjoy a mix of historic plazas and scenic beaches, making Montevideo an engaging destination for exploration.

Port Info LinkPort Excursions Link
Buenos Aires, Argentina — Day 8 of Costa Diadema March 26, 2025 cruise
Day 8•Wednesday, Apr 2

Buenos Aires, Argentina

Arrival: 8:00 AM•Departure: —

Returning to Buenos Aires, Argentina — see Day 1 above for port info.

Port Info LinkPort Excursions Link

Weather Forecast

Costa Diadema - March 26, 2025 Weather Forecast

Average monthly weather for your cruise ports

Buenos Aires, Argentina

🌦️

March

Typical Weather

89°F

Average High

54°F

Average Low

Rainfall

0.16in

Daily average

4.8 in monthly total

Costa Diadema Shore Excursions

Explore the most popular excursion options at each port.

From beach breaks and snorkeling to local food tours and cultural landmarks, these shore excursions help you make the most of every stop. Browse by port below to compare top-rated options and plan your day before you board.

See all Buenos Aires Shore Tours

Itinerary Safety Score

Based on comprehensive research of cruise port safety information, including recent crime reports, travel advisories, Global Peace Index rankings, and specific port security concerns, we've created a "safety score" for each cruise port stop. The overall rating below represents a combined score for your specific cruise itinerary.

Itinerary Safety Rank
61 / 100
safer than 61% of all cruises
61
6
/ 10
Buenos Aires, Argentina
Buenos Aires
Travelers should stay vigilant in Buenos Aires due to higher crime rates, especially in tourist areas, and consider organized tours for safety.
5
/ 10
Santos (sao Paulo), Brazil
Santos
Travelers in Santos should exercise caution in certain neighborhoods due to elevated risks of theft and robbery while remaining vigilant.
7
/ 10
Itajai, Brazil
Itajai
Travelers in Itajai should remain vigilant and take standard precautions to minimize risks, especially in areas with moderate crime.
7
/ 10
Montevideo, Uruguay
Montevideo
Montevideo is generally safe for cruise travelers, but caution is advised in crowded areas and after dark to avoid petty theft.

Cruise Ship

Costa Diadema

⚓ Tonnage

132,500

vs avg 121,877

🛠️ Year Built

2,014

vs avg 2,010

📏 Length (ft)

1,003

vs avg 976

👥 Passenger Count

3,724

vs avg 3,728

The Diadema has a construction date of 2014 and a total size of 132,500 gross tons. The ship measures 1,003 feet in length. Costa Diadema is included in Costa’s Diadema class. At full capacity, the Costa Diadema holds 3,724 passengers. That includes 2,471 cruise vacationers and 1,253 staff members. The Diadema total number of staterooms is 0.

Click above for more Costa Diadema stats, tips, imagery, and more.

  • 📊Size comparison chart against other ships
  • 🍸Bars, restaurants, and venue highlights
  • 🛠️Renovation and dry-dock schedule
  • ❓FAQ's about Costa Diadema

Also of interest:

Costa Diadema Deck PlansCosta Diadema Cabin SearchCosta Diadema Health Score

Other Costa Diadema Sailings

Same ship, different dates

← Previous sailing

Mar 19, 2025

7-Night 7 Night South America (Buenos Aires Roundtrip)

All sailings

Costa Diadema schedule

Full itinerary calendar

Next sailing →

Apr 2, 2025

7-Night 7 Night South America (Buenos Aires Roundtrip)

Costa Diadema March 26, 2025 FAQ

What's the cheapest cabin on the Costa Diadema March 26, 2025 cruise?▾

Live pricing is not currently available for this sailing. Sign up for price-drop alerts above to be notified when fares appear.

What's the weather like on the Costa Diadema March 26, 2025 route?▾

Across the ports visited on this 7-night route, March averages 91°F highs and 57°F lows. See the per-port weather forecast section above for daily detail.

How safe is the March 26, 2025 Costa Diadema itinerary?▾

This itinerary scores 6.1 out of 10 on the Gangwaze Itinerary Safety Score, with per-port scores of Buenos Aires 5.6, Santos 5.3, Itajai 6.5, Montevideo 6.9. We weight current travel advisories, recent crime data, and Global Peace Index signals — see the Safety Score section above for the full per-port breakdown.

When does the Costa Diadema sail and return on this itinerary?▾

The Costa Diadema departs Buenos Aires, Argentina on Wednesday, March 26, 2025 at 7:00 PM and returns on Wednesday, Apr 2nd, 2025 at 8:00 AM. Total duration: 7 nights.

Who is the cruise director for the Costa Diadema sailing on March 26, 2025?▾

Cruise director assignment for this sail date is not currently confirmed in our records.

Can I track price drops for this Costa Diadema itinerary?▾

Yes — use the price tracking opt-in on this page to get an email when cabin prices drop for this exact sailing. We snapshot fares daily.

Researched and assembled by Gangwaze Cruise Editorial using daily-refreshed itinerary, pricing, weather, and safety data.

Last Updated: May 21, 2026