What is the temperature on a cruise ship?

Q: What is the temperature on the ship and in the cabins? Ambient temperature on the vessels ranges between 18 – 20°C (64 – 68°F) in public areas, while cabin temperatures may be adjusted according to your preference.



Inside a cruise ship in 2026, the temperature is strictly controlled to be between 20°C and 22°C (68°F to 72°F). Because these ships carry thousands of people, the air conditioning is often kept on "high" in public spaces like theaters, dining rooms, and atriums to prevent the air from feeling stuffy; this often makes the interior feel quite chilly, especially if you are dressed for the tropical weather outside. In your individual cabin, you will have a thermostat that allows you to adjust the temperature, typically ranging from a frosty 16°C to a warm 26°C. Outside on the decks, the temperature is entirely dependent on the geography. However, even on a Caribbean cruise, the "apparent temperature" on deck can feel 5 to 10 degrees cooler due to the sea breeze created by the ship moving at 20 knots. For 2026 travelers, the rule is to dress for the destination outside, but always carry a light shawl or sweater for the "Arctic" conditions of the ship's interior lounges.

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Even if you're taking a cruise around the Caribbean, it's smart to take a light sweater or fleece to wear at night when the temperature tends to cool down. After all, you won't want to get chilly while enjoying the starry sky from your stateroom veranda or on one of the ship's decks.

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In general, cruise cabins are cool, so you don't have to worry about getting too hot.

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On cruise ships mostly fan coil units are used. They provide the cabins with heating and/or cooling via a 2-, 3- or 4-pipe system. To control the room temperature the most accurate results, in both full- and partial load conditions, can be achieved by using Pressure Independent balancing and Control Valves (PICV).

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Ambient temperature on the vessels ranges between 18 – 20°C (64 – 68°F) in public areas, while cabin temperatures may be adjusted according to your preference.

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After breakfast service ends in the late morning, all major cruise lines offer an all-day room service menu of salads, sandwiches, snacks and desserts.

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When a toilet is flushed on a cruise ship, the sewage travels to the onboard treatment plant. Here the waste is filtered before it enters an aeration chamber. The aeration chamber cleans the waste. It is then sterilized using UV light and released into the ocean when clean enough to do so.

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The perfect layering piece is a turtleneck, sweater, or flannel shirt. Wearing wool scarves, hats (balaclava), gloves, and mittens is the best way to keep warm on a winter cruise. Maintaining a warm and dry foot temperature affects your body's core temperature.

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Can you live on a cruise ship? Yes, and here's how much it costs. Buying into a ship like the MV Narrative is a way to travel the world with fewer hassles, one buyer told CNBC Travel.

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T-shirts, swimsuits, robes, bare feet, tank tops, baseball caps, and pool wear are not allowed in the main restaurant or specialty restaurants at any time. In addition, shorts and flip-flops are not permitted during the evening hours.

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DO NOT BRING YOUR OWN toilet paper, or flush so-called flushable wipes. The plumbing system is not like what you have at home. If you clog your toilet, you affect others on you hallway. The TP provided is specific for the system on the ships.

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Shipboard potable water (drinking, bathing, whirlpools, etc.) either comes from a shoreside water treatment plant or is generated on board from seawater via Reverse Osmosis systems or Evaporators. Swimming pool water is typically seawater.

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The easiest way for ships to do this is to liquefy the leftover food in an industrial grinder. The food is blended with water until it's a smooth mixture and then either disposed of in port, incinerated, or pumped out to sea when the ship is deep water and away from the coastlines. Simple as that.

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Water is a precious resource onboard a cruise ship, so modern ships save gallons with each flush by using a vacuum system. The sounds your toilet make include a scary whoosh (unfortunately, loud enough to be heard in the hallways) followed by a series of thumps as valves in the system close.

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Final word. On most cruises, you're welcome to wander the ship with a drink in your hand, at least in most areas. It's just like one large resort, so grab your favourite tipple and then find your perfect spot to enjoy it. Just make sure you ask for plastic glasses if you want to head over to a pool or hot tub.

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Cruise ships are good at making food available 24/7, so if you're hungry, there's usually no one to blame but yourself. The main dining room usually has set meal times, but sections of the buffet will always be open, and you'll usually be able to find a diner, cafe, or pizza shop that's open at all hours.

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Most ships have a 24-hour dining option, typically pizza or a cafe with premade items like cookies and mini sandwiches. Breakfast options can often run from 6 a.m. to 11 or 11:30 a.m., with full breakfast offered at typical dining times and continental selections offered early and late.

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A few passing showers are little cause for concern, and there are plenty of things to do inside until the rain stops. A storm, squall, or hurricane is a different matter. If your ship is in danger of encountering seriously bad weather, here's what you can expect to happen: The captain will change course.

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In the dining rooms, items such as shorts, pool wear and baseball caps are not permitted; shoes must be worn at all times. Jeans are permitted as long as they aren't fraying and don't have holes.

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As a general rule, plan to have $50 to $100 each day in the local currency. Also, you may want to bring an extra $20 a day for tipping crew members. Make sure to include smaller bills for tips. Fifty to a hundred dollars a day should be enough to cover small purchases, tips and snacks at each port.

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