Viziato: Dive Visibility

Viziato forecasts underwater visibility for coastal waters and the open ocean between 60° N and 60° S. The current day's forecast map, a description of conditions at any point and a daily Top 10 of well-known dive sites are free; exact visibility at any point and at saved spots, the full 9-day forecast and visibility alerts require the Viziato Pro subscription. The forecast is updated daily and covers nine days starting with the current day. Visibility is shown in color on an interactive map and as a distance in feet or meters. Coverage Waters within about 150 km of a coast are forecast on a grid of about 4 km. The open ocean beyond them is forecast on a coarser grid of about 28 km. Waters north of 60° N and south of 60° S are not covered. Forecast model The forecast is produced each day by a machine-learning model developed by VIZIATO LLC. The model draws on ocean currents, water temperature and salinity, waves, wind and weather, sunlight and atmospheric haze, tides, biological activity, the shape of the seafloor and material carried by rivers. It was trained on decades of ocean and atmospheric data. Free features • A color map of the current day's forecast for coastal waters and the open ocean. • A description of conditions at any point on the water, from "Very Poor Visibility" to "Outstanding Visibility". • Saved spots and drawn areas, synced through the user's own iCloud account, each with a description of the current day's conditions. Spots can be placed on the map or entered as coordinates. • A daily Top 10 of the clearest well-known dive sites, with each site's forecast visibility. • Popular Dive Sites: well-known boat dive sites pinned on the map, each with its country and a short description. • Place search, distance and radius measurement, and a choice of units and coordinate formats. Viziato Pro Viziato Pro is an optional auto-renewing subscription, billed monthly or yearly through the Apple Account. It adds: • Exact Visibility: forecast visibility in feet or meters at any point and at saved spots. • 9-Day Forecast: all nine forecast days, starting with the current day, on the map and at every point. • Visibility Trends: a chart of forecast visibility across the forecast days at any point. • Visibility Alerts: a notification when the forecast at a saved spot, anywhere in the forecast area, reaches a chosen visibility. • Custom Map Colors: a custom visibility range for the map's color scale. • Offline Access: the last downloaded forecast opens when the phone has no connection. • GPX Import and Export: saved spots and drawn areas to and from GPX files, for chartplotters and other navigation apps. Without a subscription, the app shows the current day's forecast map, a description of conditions, the Top 10 and the Popular Dive Sites layer. The yearly plan begins with a one-week free trial for Apple Accounts that have not used a Viziato Pro free trial before; the trial converts to a paid yearly subscription unless it is canceled at least 24 hours before the trial ends. Payment is charged to the Apple Account at confirmation of purchase, or at the end of the free trial. The subscription renews automatically unless it is canceled at least 24 hours before the end of the current period. The Apple Account is charged for renewal within 24 hours before the end of the current period. Subscriptions can be managed and canceled in the Apple Account settings. Privacy Viziato has no user accounts and no sign-in. Location access is optional, and location is used on the device only. Forecasts are estimates for informational use and are not for navigation or safety decisions. Terms of Use (EULA): https://viziato.io/terms Privacy Policy: https://viziato.io/privacy