Forecast the tidal stream anywhere in the world at high resolution for dinghy and yacht racing. Watch the streams run on the map, read the tide height at any spot, and plan a beat, a start line or a passage around the flow.
Zoom into a forecast area to see the stream itself: colour for speed, arrows for direction with the rate in knots, and drifting particles tracing the flow across a course.
A full tide curve for any location in the world, computed for the conditions on the day — springs, neaps and the smaller oscillations included. Press play to watch the tide move, or scrub the timeline to a start time.
Need more detail than the free UK forecast? Draw a box on the map, pick the month it should cover, and a fresh high-resolution forecast is computed for that area. A club-sized area is usually ready in well under an hour — the exact estimate is shown before you commit — and it is private to you.
Paid plans export the tidal streams as a GRIB2 file: choose the days, draw the area, pick the grid spacing and time step, and load the result into your own routing or weather software. Exported data is a modelled prediction and is not for navigation.
Buoys, beacons and lights can be overlaid on the chart to place a course. Not for navigation.