SuroîtThe route that gets you there ahead of the others.
Suroît finds the fastest route on 17 weather models with the polar of each of your sails, then refines it to win back the last few minutes. Put to the test on the 2026 Route du Rhum.
Routing
Same start, same polar, one route per model: you see at once which one gets you there first, and by how much. Routes lasting several weeks are computed in about twenty seconds, offshore as well as right along the coast.
Routing in detail
From Brittany to Guadeloupe with a VO65 polar: the route goes round the low to the north before diving south.
Understanding the weather
Fronts, wind shifts, clouds and squalls on the map, under your route. And what a model error would cost you before you choose between two routes.
Weather analysisOn board
The Windows version plugs into the boat's multiplexer: live position, true wind, AIS, route sent to the autopilot, and everything works without a connection. On a phone, cockpit mode shows the polar percentage in large figures.
What you see behind this page is the wind forecast by AROME for the current hour: the same Météo-France forecast, on a 2.5 km grid, that Suroît downloads to compute your route.
Your boat, your routes, on all your screens
Your account keeps your routes, polars and forecasts from one device to another. Nothing to install to get started: Suroît runs in the browser, on a computer, tablet or phone.
Choose your polar from more than 350 in the library or import your own (.pol, .csv, Expedition).