IncusGrid

Thousands of boats. Millions of movements. Billions of lightning strikes. IncusGrid turns the collective knowledge of the sailing community into one map. Instead of tomorrow’s forecast, it shows what happened over many seasons: where crews actually sailed and stayed, and where thunderstorms really struck. Plan your next passage with what thousands of sailors already know. Sailing routes from real passages See which connections other crews actually sail, in which direction and in which months. From Sicily to the Ionian Islands, for example, most boats head east in May and June and sail back in September. For every month, the route card also shows the typical wind strength, point of sail and sea state along the way. Browse the most popular routes wherever you look, and share a route with your crew. Where other boats stay Where do crews leave their boat for two months in summer, and where do they spend the winter? From the same real boat movements, boat stays show the harbours and anchorages where boats paused, by length of stay and season, from a few days to more than six months. Hotspots: find the quieter anchorage See where many boats gather in each month and where it is quieter, from busy island harbours to the empty bays nearby. Terrain Exposure: same bay, different shielding Surrounding hills can shield an anchorage from lightning. Terrain Exposure shows how well the terrain protects each part of a bay, so you can choose the better side before you drop anchor. Years of lightning, wind and waves Historical lightning density, wind strength and direction, and sea state, month by month and worldwide. Compare places and seasons and see when an area tends to have light winds, strong winds or rough seas. Free to start Look around without an account: annual views and January and February are free on every layer. A free account adds March and April. Full access adds every month, Terrain Exposure and the seasonal details of routes and boat stays. Made for planning Search for your sailing area with suggestions as you type, explore on phone or tablet, in 19 languages. IncusGrid shows historical patterns for planning. It is not a weather forecast or a navigation aid. Routes are drawn schematically, and boat stays are derived from pauses in boat reports, not confirmed berths. Always check current forecasts, official charts and local conditions before you go to sea.