Estuary conditions in one view
Seyva combines forecast weather, wind direction, daylight and predicted tides so swimmers and paddleboarders can review the main planning factors together.
Separate activity results
Swimming and paddleboarding are checked independently against Seyva’s starter settings. When the forecast matches, a proposed time window is shown for further investigation.
Check the water yourself
Tidal movement, currents, wind, visibility, marine traffic and water-quality information all need local checking. A forecast match is never a safety guarantee.
More options near London
Forecast and tide information is probabilistic and must not be used for navigation or as the sole basis for a safety-critical decision.