Starlink on a sailing yacht: what actually works in 2026
The honest state of satellite internet at sea — measured speeds, the power it eats, where it fails, and why a 4G SIM is still in every crew bag.
Short answer: yes, Starlink works on a sailing yacht, and yes, you can hold a video call over it. At anchor in the Mediterranean we measure 100–250 Mbps down, 10–30 Mbps up and 30–60 ms latency. What it is not is a home fibre line — it drops for a second or two when the dish re-acquires a satellite, it eats a meaningful share of your battery bank, and near shore a €20 local SIM often beats it. Here is the detail, from someone running eight boats a year on this stack.
Three years ago, "internet on a sailing yacht" meant rationing data, praying for a marina signal, and cancelling the afternoon call when the anchorage was one bay too far from the cell tower. Starlink Maritime changed the ceiling — it did not change the floor.
What Starlink delivers in practice
These are our own numbers from the 2026 Mediterranean season, taken on the boat rather than from a spec sheet. Speedtests were run from the saloon table over Wi-Fi, which is how guests actually use it.
| Metric | At anchor, clear sky | Under way or partly obstructed |
|---|---|---|
| Download | 100–250 Mbps | 20–80 Mbps |
| Upload | 10–30 Mbps | 3–10 Mbps |
| Latency (round trip) | 30–60 ms | 60–120 ms, with drops |
| Dropouts | 1–5 s, a few times an hour | More frequent on open-sea legs |
| Comfortably supports | 1080p video calls, screen-share, SSH, git push | Audio calls, chat, email, file sync |
Latency is the real story. The old geostationary satellite internet (V-Sat, Inmarsat) had 600 ms+ round-trip times — unusable for anything interactive. Starlink's low earth orbit puts you under 60 ms from the open sea, which is why the "is this a video call I can actually take" question now has a yes for the first time on a 40-foot catamaran.
Which Starlink plan a yacht actually needs
This is where most people get it wrong: the cheap land plan does not legally or practically cover you offshore. Starlink renames and repackages these tiers often, so treat the names as classes rather than products, and check current pricing before you buy.
| Plan class | Works offshore? | Rough monthly cost | Who it suits |
|---|---|---|---|
| Land / roaming (fixed or regional) | No — coastal fringe at best, inland-biased coverage | €50–90 | Marina-based boats that barely leave the dock |
| Ocean-capable roaming | Yes, including open water, at standard priority | €200–300 | Coastal cruising with occasional offshore passages |
| Maritime / prioritised data | Yes, with prioritised throughput at sea | €250–1,000+ by data tier | Charter fleets and liveaboards who cannot lose the link |
Two practical notes. First, the ocean-capable tiers are usually billable by the month, so a seasonal boat pauses the plan over winter rather than paying twelve months for six. Second, the hardware matters as much as the plan: a standard dish on a decent mount is fine at anchor, while a flat high-performance dish holds the link far better under way — and costs roughly double to buy and to power.
The thing nobody warns you about: power
On land, Starlink's power draw is invisible. On a boat it competes directly with the fridge. This is the single most common reason a yacht has Starlink on board and still does not have internet when you want it — someone switched it off to save the batteries.
| State | Draw | Cost per 24 h at 12 V |
|---|---|---|
| Normal use | 40–75 W | ~100–150 Ah/day if left on continuously |
| Boot and re-orientation peaks | Up to ~150 W briefly | — |
| Switched off overnight | 0 W | Saves roughly 40–60 Ah |
For context, a typical cruising catamaran carries 400–600 Ah of usable house battery. Leaving a dish on around the clock can eat a third of that, which is why most boats run Starlink during the working block and shut it down at night. If you need the link at 23:00 for a call with another timezone, say so in the morning — it is a battery-planning question, not a technical one.
Where coverage actually drops
Three situations cost you internet even with Starlink on board:
- Anchorages shadowed by steep cliffs. The dish needs a clear view of about 100° of sky. Some Croatian bays under 300-metre cliffs fall below that threshold from certain positions on the boat.
- Long passages in a sub-optimal Starlink service zone. The ocean-capable plans cover most of our routes, but a handful of open-water stretches in the Aegean and Andaman have intermittent drops.
- Under sail with the mainsail casting a shadow on the dish. Easy to fix if you think about it when rigging, easy to forget.
The first two you plan around. The third you fix by moving the dish: the stern rail on the opposite side to the boom, or a pushpit mount high enough to clear the bimini, solves most of it.
Why we still carry 4G
Every captain on our routes carries a Turkish, Greek, or Croatian SIM with a 50–100 GB monthly plan, split on a MiFi or phone hotspot. Near shore — which is most of our anchorages — 4G or 5G is faster than Starlink's "busy" moments and has zero satellite-realignment stutters. On every cruise, guests end up using both: Starlink for bandwidth, 4G for latency-critical moments.
Practically: if you are about to join a high-stakes call, plug into the 4G hotspot 30 seconds beforehand. Pairs beautifully with a USB-C Ethernet adapter if you care about stability. We break the full head-to-head down in our Starlink vs 4G guide.
Bandwidth etiquette on a shared boat
Eight people on one Starlink is more than enough for normal work — but not if three of them are running simultaneous Loom recordings in 4K. We do not police it; we just ask guests to check with the rest of the boat before starting anything heavy. In three years, that social norm has been enough.
Do you actually need Starlink for a Mediterranean week?
Usually not, and we would rather say so. Along the Turkish and Croatian coast the anchorages are close enough to shore that coastal 4G/5G plus marina Wi-Fi carries video calls and normal work comfortably — a typical speedtest at anchor in Göcek is around 47 Mbps down and 23 up. Starlink earns its keep on the legs where the shore signal genuinely runs out: some Greek island-hops, the longer Aegean crossings, and the Thailand season. If a broker is selling you a Mediterranean coastal week on the strength of the word "Starlink", they are selling you the wrong thing.
What to test before you commit
If you have never worked over Starlink, try the ground-based Starlink Mini for a day first (every major city has one you can borrow or rent). The connection on the boat is very similar — if your workflow tolerates one there, it will tolerate this. The other useful test costs nothing: tether your laptop to your phone, cap it at 4G, and run a normal working day. If that day is fine, a boat will be fine.
What changed since the last update
- September 2026 — added measured speed, plan and power tables; added the power-draw section after a season of guests asking why the dish was off at night.
- April 2026 — revised the plan guidance after Starlink repackaged its maritime tiers; clarified that land roaming does not cover open water.
- March 2026 — first published, based on three seasons of running Starlink alongside coastal 4G.
Questions from readers
The questions this guide gets asked most often. Expand any to read the answer.
Yes. At anchor with Starlink, 1080p Zoom/Meet calls are stable. On long open-sea passages expect occasional 1–5 second drops — we warn you ahead of time if a crossing falls into a rougher Starlink service zone.
Typically 10–30 Mbps on Starlink Maritime. More than enough for screen-share, small file uploads, and git pushes. Large file uploads (multi-GB) are realistic but take minutes.
A standard dish draws roughly 40–75 W continuously, which is about 100–150 Ah a day off a 12 V bank if you never switch it off. Flat high-performance dishes draw closer to 110–150 W. Most boats run it during the working block and shut it down overnight.
An ocean-capable roaming plan at minimum — the cheap land or regional plans do not cover open water. Roughly €200–300 a month at the time of writing, or more for prioritised maritime data. Starlink repackages these tiers often, so check current pricing.
Yes, with two caveats: throughput typically drops to 20–80 Mbps under way, and the mainsail can shadow the dish depending on where it is mounted and which tack you are on. Mount it clear of the boom and it holds the link fine.
Eight people doing normal work — calls, email, docs, code — share one dish comfortably. It falls over if several people run heavy uploads at once, so we ask guests to flag anything big before starting it.
Yes — it is included where it earns its keep. On open-sea legs (some Greek island-hops, the Thailand season) Starlink is the difference-maker. But along the Turkish and Croatian coast you rarely need it: 4G/5G plus marina Wi-Fi handles calls and normal work, so there it is a backup rather than the headline. Personal roaming SIMs are separate.
Usually not. Coastal Turkish and Croatian anchorages get solid 4G/5G — around 47 Mbps down and 23 up at anchor in Göcek — plus marina Wi-Fi. Starlink matters on longer crossings and in Thailand, not on a coastal week.
Tell the captain — we can reroute to closer shore (stronger 4G) or take a slightly longer path that passes under a cell tower. It has happened three times in two years and been fine each time.
Related guides
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