Live wind & waves at every ship's operating area — translated into what you'll actually feel on board. A 2.5 m sea is a rough day on a small ship and a non-event on a mega ship. This tracker shows the difference.
Use the search above the ship list to find a ship by name, line, homeport or port — it works together with these filters.
Same sea, different ship. Thresholds are in metres of significant wave height for when motion becomes notable / rough, plus the wind (knots) where docking and port manoeuvring get difficult.
| Size class | Gross tonnage | Motion notable | Rough | Docking wind concern | Notes |
|---|---|---|---|---|---|
| Small | < 30,000 GT | 1.25 m | 2.0 m | 25 kt | Tenders at risk above 1.0 m; feels every swell |
| Medium | 30,000–70,000 | 2.0 m | 3.0 m | 30 kt | Classic mid-size ride; stabilisers help to ~2.5 m |
| Large | 70,000–140,000 | 2.5 m | 3.75 m | 35 kt | High windage — gusts matter in port even when seas feel fine |
| Mega | > 140,000 GT | 3.0 m | 4.5 m | 40 kt | Mass + stabilisers shrug off most Caribbean seas; windage is the limit |