Mariner of the Seas itinerary map for August 13, 2026 (4 nights)
Mariner of the Seas cruise ship

Mariner of the Seas — August 13, 20264-Night Western Caribbean on Royal Caribbean

This 4-night cruise aboard the Mariner of the Seas departs from Galveston, Texas on Thursday, August 13, 2026 and returns on Monday, Aug 17th. August weather across this route averages 99°/72°F. Cabins are currently tracked from $473.

The itinerary safety score for this sailing is 6.9 out of 10 — Galveston (6.8), Cozumel (7.0). Inside cabins rose $85 on May 19.

Cruise Length
4
Night Cruise
Departure Port
Galveston
Texas
Port Stops
2
Sea Days
2

Cruise Price - Mariner of the Seas August 13, 2026

Mariner of the Seas · August 13, 2026

The graph below tracks historic price of the Mariner of the Seas cruise ship departing August 13, 2026. The most recent price for this sailing starts at $474 ($119 per night) for an Inside Cabin. Compared to the average price of $526 ($132 per night), this represents a recent decrease of 10%.

🛏️
Inside
$474
🌊
Oceanview
$473
🌅
Balcony
$657
👑
Suite
$1,062

Price History – Mariner of the Seas August 13, 2026

inside cabin
Mariner of the Seas
August 13, 2026
$474
10% vs avg: $526

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

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Cruise Itinerary Map - 4 Night Western Caribbean (Galveston Roundtrip)

Mariner of the Seas · August 13, 2026

The Mariner of the Seas sails on August 13, 2026 for a 4 Night Western Caribbean (Galveston Roundtrip). The ship will depart the port of Galveston, Texas at 4:00 PM and will return to the port of Galveston, Texas on Aug 17th at 7:00 AM. During the 5-day journey, the Mariner of the Seas will visit 1 additional port and will spend 2 days at sea.

Cruise itinerary route

4 Night Western Caribbean (Galveston Roundtrip)

  • AUG13
    Galveston, Texas
    Galveston, Texas
    A: — - D: 4:00 PM
  • AUG14
    At Sea
    At Sea
    A: — - D: —
  • AUG15
    Cozumel, Mexico
    Cozumel, Mexico
    A: 7:00 AM - D: 5:00 PM
  • AUG16
    At Sea
    At Sea
    A: — - D: —
  • AUG17
    Galveston, Texas
    Galveston, Texas
    A: 7:00 AM - D: —
Loading map...

Cruise Ports

August 13, 2026 · 4 Night Western Caribbean (Galveston Roundtrip)

Galveston, Texas — Day 1 of Mariner of the Seas August 13, 2026 cruise
Day 1•Thursday, Aug 13

Galveston, Texas

Arrival: —•Departure: 4:00 PM

Galveston, Texas, offers docking at Galveston Port. Travelers explore Moody Gardens and Historic Pleasure Pier. Excursions visit Houston’s Space Center. Local markets sell pecan pralines. The peak season, March to May, brings mild weather for coastal tours. Photography captures Victorian architecture and Gulf vistas. Dining onboard includes shrimp gumbo, a Texan favorite. Souvenirs, like cowboy crafts, are sold in ship shops. Briefings cover Texan history. Light clothing and sun protection suit the subtropical climate, while comfortable shoes enhance historic walks. Galveston’s coastal charm offers a vibrant American stop. Cruise travelers enjoy a mix of historic districts and scenic beaches, making Galveston an engaging destination for exploration.

Port Info LinkPort Excursions Link
Day 2 at sea — Mariner of the Seas August 13, 2026 itinerary
Day 2•Friday, Aug 14

At Sea

Arrival: 12:00 AM•Departure: 11:59 PM

Day at sea aboard the Mariner of the Seas — featuring Izumi Hibachi & Sushi, Vitality At Sea Spa, Suite Lounge & Photo Gallery.

Cozumel, Mexico — Day 3 of Mariner of the Seas August 13, 2026 cruise
Day 3•Saturday, Aug 15

Cozumel, Mexico

Arrival: 7:00 AM•Departure: 5:00 PM

Cozumel, Mexico, offers docking at Cozumel Port. Travelers explore Chankanaab Park and San Gervasio ruins. Excursions include snorkeling at Palancar Reef. Local markets sell tacos. The peak season, December to April, brings warm weather for coastal tours. Photography captures coral reefs and Caribbean vistas. Dining onboard includes ceviche, a Mexican favorite. Souvenirs, like Mayan crafts, are sold in ship shops. Briefings cover Mayan history. Light clothing and sun protection suit the tropical climate, while water shoes enhance reef exploration. Cozumel’s coastal allure offers a vibrant Mexican stop. Cruise travelers enjoy a mix of ancient ruins and marine adventures, making Cozumel an engaging destination for exploration.

Port Info LinkPort Excursions Link
Day 4 at sea — Mariner of the Seas August 13, 2026 itinerary
Day 4•Sunday, Aug 16

At Sea

Arrival: 12:00 AM•Departure: 11:59 PM

Day at sea aboard the Mariner of the Seas — featuring Izumi Hibachi & Sushi, Vitality At Sea Spa, Suite Lounge & Photo Gallery.

Weather Forecast

Mariner of the Seas - August 13, 2026 Weather Forecast

Average monthly weather for your cruise ports

Galveston, Texas

🌧️

August

Typical Weather

102°F

Average High

69°F

Average Low

Rainfall

0.21in

Daily average

6.5 in monthly total

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 Galveston 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
69 / 100
safer than 69% of all cruises
69
7
/ 10
Galveston, Texas
Galveston
Travelers should remain vigilant in certain areas of Galveston and stay informed about weather hazards to ensure a safe cruise experience.
7
/ 10
Cozumel, Mexico
Cozumel
Cozumel is generally safe for tourists, but remain vigilant against petty crime and avoid risks in surrounding areas.

Cruise Ship

Mariner of the Seas

⚓ Tonnage

139,863

vs avg 162,993

🛠️ Year Built

2,003

vs avg 2,010

📏 Length (ft)

1,020

vs avg 1,085

👥 Passenger Count

3,114

vs avg 4,184

The Mariner of the Seas has a construction date of 2003 and a total size of 139,863 gross tons. The ship measures 1,020 feet in length. Mariner of the Seas is included in Royal Caribbean’s Voyager class. At full capacity, the Mariner of the Seas holds 3,114 passengers. That includes 1,914 cruise vacationers and 1,200 staff members. The Mariner of the Seas total number of staterooms is 1,700.

Click above for more Mariner of the Seas stats, tips, imagery, and more.

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

Also of interest:

Mariner of the Seas Deck PlansMariner of the Seas Cabin SearchMariner of the Seas Health Score

Cruise Director

On duty at sail date (August 13, 2026)

Daniel Gilham — cruise director for the Mariner of the Seas sailing on August 13, 2026

Daniel Gilham

Country: N/A•Start: Aug 3, 2026•End: Nov 27, 2026

Daniel Gilham is a Royal Caribbean cruise director known for his energetic hosting style and strong connection with guests during interactive events.

Daniel Gilham Full Profile

Other Mariner of the Seas Sailings

Same ship, different dates

← Previous sailing

Aug 8, 2026

5-Night 5 Night Western Caribbean (Galveston Roundtrip)

All sailings

Mariner of the Seas schedule

Full itinerary calendar

Next sailing →

Aug 17, 2026

5-Night 5 Night Western Caribbean (Galveston Roundtrip)

Mariner of the Seas August 13, 2026 FAQ

What's the cheapest cabin on the Mariner of the Seas August 13, 2026 cruise?▾

The lowest currently-tracked fare for this sailing is $473 for an Inside cabin. Pricing is updated daily — see the live price chart above for the latest snapshots.

What's the weather like on the Mariner of the Seas August 13, 2026 route?▾

Across the ports visited on this 4-night route, August averages 99°F highs and 72°F lows. See the per-port weather forecast section above for daily detail.

How safe is the August 13, 2026 Mariner of the Seas itinerary?▾

This itinerary scores 6.9 out of 10 on the Gangwaze Itinerary Safety Score, with per-port scores of Galveston 6.8, Cozumel 7.0. 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 Mariner of the Seas sail and return on this itinerary?▾

The Mariner of the Seas departs Galveston, Texas on Thursday, August 13, 2026 at 4:00 PM and returns on Monday, Aug 17th, 2026 at 7:00 AM. Total duration: 4 nights.

Who is the cruise director for the Mariner of the Seas sailing on August 13, 2026?▾

Daniel Gilham is scheduled as cruise director for this sailing. See the Cruise Director section above for their bio.

Can I track price drops for this Mariner of the Seas 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 19, 2026