Private Boat Capacity in Phuket: Thai Rules, 2 to 150 Guests
Most private boats in Phuket carry between 2 and 8 guests on a speedboat or longtail, 6 to 12 on a small motor yacht, and 12 to 30 on larger yachts or catamarans. Party catamarans go far higher, up to 150. Licensed passenger capacity is fixed by Thailand’s Marine Department and cannot be negotiated, and day-trip and overnight limits for the same vessel can differ.
TL;DR:
- Day trip capacity may exceed overnight capacity because cabin berths set the overnight limit, so get the number for your exact itinerary in writing.
- Before paying, request proof of commercial registration, a safety survey, accident insurance, and one appropriate lifejacket for every passenger, including children.
- If your headcount approaches the licensed limit, ask about a larger vessel and check shade, seating, toilets, and easy boarding before booking.
- Private charters usually cost per boat, so compare the total quote and confirm extra passenger fees, deposit terms, cancellation rules, and seasonal surcharges.
Table of Contents
- What are the typical passenger capacities by boat type?
- How does Thailand set and enforce passenger capacity?
- How do you pick the right boat for your group size and trip format?
- What capacities will you see in Phuket listings?
- How does capacity affect price and booking?
- What should you confirm with the operator before you book?
- Why do we cap numbers on every trip?
- How can we help you pick and book the right private boat in Phuket?
- FAQ
- Sources
What are the typical passenger capacities by boat type?
Think of capacity as a ceiling, not a target. Here is what you will usually find around Phuket:
- Speedboats and longtails: capacity and crew vary by vessel. They can be fast and flexible, but shade and toilets may be limited.
- Small motor yachts: capacity and crew vary by vessel. Some have an enclosed saloon, a toilet and a sun deck.
- Larger yachts and catamarans: roughly 12 to 30 guests, with a fuller crew, a galley, several toilets and room to spread out.
- Party catamarans: some are designed for events and big celebrations rather than quiet island hopping.
The legal headcount only tells you what is allowed. A boat can feel tight when everyone wants shade, a seat and a spot on the sun deck at the same time. Cabin berths matter on overnight trips, where a vessel that carries 12 guests on a day cruise may sleep far fewer. Always ask which trip format the quoted capacity covers.
Pro Tip: If your group is close to a boat’s maximum, step up one size. The extra space is what turns a crowded day into a relaxed one.
How does Thailand set and enforce passenger capacity?
Capacity on a commercial charter is not a marketing number. It is tied to the vessel’s registration and safety survey, and crews and authorities treat it as a hard limit. According to Herrera and Partners, all commercial charter vessels in Thailand must be registered with the Thai Marine Department, carry mandatory accident insurance and meet safety survey standards.
Here is what that means for you:
- Commercial charter rules in Thailand can depend on the vessel’s registration and authorisation. Check the current requirements with the relevant authorities.
- Operating without proper authorisation can lead to seizure and legal penalties.
- Cheaper, non-commercial options may lack the insurance and safety survey that protect you.
There is a narrow exception at the top end of the market. Ministry guidance explains that eligible super-yachts must be at least 30 metres long and carry no more than 12 passengers to trade in Thai waters under the described conditions.
Super-yachts permitted under the described special conditions must be at least 30 metres long and carry no more than 12 passengers. This requirement applies to the vessels covered by that guidance.
How do you pick the right boat for your group size and trip format?
Work through these steps in order:
- Count everyone, including children. Give your operator the full headcount and ask about appropriate lifejackets and seating.
- Match the group to a vessel. Ask operators which boat types can accommodate your group within their licensed capacity.
- Size up for comfort. If your group is close to the vessel’s maximum, ask about a larger boat. More deck space may mean more room to relax.
- Check the comfort basics. Look for shade, toilets, cabin berths on overnight trips, and a tender for reaching island beaches. Ask about easy boarding if you travel with older relatives or small children.
- Confirm the trip format. A day-trip capacity does not automatically apply to an overnight stay. Ask for the capacity in writing for your exact itinerary, along with proof of insurance.
If you are weighing vessel types, our speedboat versus catamaran guide goes through the comfort trade-offs in detail.
Pro Tip: Send your operator a ready itinerary. Our private boat itinerary examples make it easy to get a quote sized to your group.
What capacities will you see in Phuket listings?
Browsing listings, you will notice the same patterns again and again:
- Check each private speedboat listing for its stated passenger capacity.
- Check each small motor yacht listing for its stated day-trip capacity.
- Check each luxury commercial yacht listing for its stated passenger limit. The super-yacht guidance applies only to vessels covered by its special conditions.
- Party catamarans may list higher capacities, but check each vessel’s licensed limit.
Many listings show separate numbers for day trips and overnight stays, so read the small print before you assume. In high season, larger vessels may appear in listings as demand changes and operators bring different boats into rotation. Those boats are still bound by their licensed limit, so a bigger number on a listing never means a loophole.
How does capacity affect price and booking?
Private charters are usually priced per boat, not per person. That makes a small group pay more per head than someone joining a shared tour, while a full boat spreads the same cost across more guests. Current prices for our Full Day Trip at Singh Luxury Speed Boat are on our pricing page.
Before you book, pin down these points:
- Extra-person charges: ask whether a few additional guests add a fee, and whether the boat can legally take them at all.
- Deposit: confirm how much is due upfront and when the balance is payable.
- Cancellation window: find out how late you can cancel or reschedule, especially when weather is a factor.
- High-season surcharges: peak dates often cost more, and the best boats go first, so reserve early.
What should you confirm with the operator before you book?
Run through this short list before paying a deposit:
- Registration and survey: ask for proof of Thai commercial registration and a safety survey certificate, and check that the quoted capacity applies to your trip type.
- Insurance and lifejackets: confirm mandatory accident insurance is in place and that there is a lifejacket for every passenger.
- Crew, comfort and costs: get the crew numbers, toilet and shade arrangements, and the full price in writing, including the policy for extra passengers or changes.
Our own boat alcohol rules guide is worth a read too, since operators set their own policies on board.
Pro Tip: A reliable operator answers these questions quickly and in writing. Slow or vague replies are a red flag.
Why do we cap numbers on every trip?
From our side of the booking desk, a boat that is comfortable runs better than a boat that is full. Capacity limits keep trips safe, and a relaxed group enjoys the transit time between islands far more. That is why we steer guests toward licensed Thai commercial vessels and away from unknown private or foreign-flagged boats. Our team plans personalised itineraries with flexible booking, so we match the vessel to your group instead of squeezing your group onto a vessel.
— Carl
How can we help you pick and book the right private boat in Phuket?
We offer private boat and cruising options and use our local knowledge to match vessel type to your group size and itinerary. Our customers have shared reviews of our service. We aim to provide a smooth experience on every trip.
- Personalised itineraries built around your group size
- Flexible booking, including last-minute requests
- Cruising and fishing trips are available, with trip length depending on the option.
Browse our private boat tours and cruising options, see our charter boat overview, or message us for a tailored quote today.
FAQ
How many people can fit on a private yacht?
It depends on the vessel’s licensed capacity. In Phuket, small motor yachts commonly take around 6 to 12 guests, while larger yachts and catamarans take 12 to 30. Always confirm the figure for your trip type.
Can you only have 12 people on a yacht?
Not always, but 12 is a common cap for luxury yachts. Ministry guidance says super-yachts over 30 metres operating under special permissions are typically limited to 12 passengers. Larger catamarans can carry more under their own licence.
How much does a private yacht cost in Phuket?
Private charters are priced per boat, so the cost depends on size, trip length and season. Current prices for our Full Day Trip at Singh Luxury Speed Boat are on our pricing page. Ask for a written quote that covers crew and fuel.
Does day-trip capacity match overnight capacity?
Often it does not. Overnight trips depend on cabin berths, so a vessel may carry fewer guests overnight than on a day cruise. Ask your operator to confirm capacity for your exact itinerary in writing.
