Tide

The Earth as the moon sees it. The sea under the moon is pulled toward it and the sea opposite is left behind, so the ocean stands in two long bulges. The Earth turns beneath them once a day, and the bulges, held by the moon, are what we call the tide. This globe shows the real ocean tide from a global model, cell by cell, as light on water.

The numbers for your place are official predictions where a NOAA station is near, and a model estimate from Open-Meteo everywhere else — an open-coast estimate; harbours and estuaries can differ by 20–40 cm and 20–30 minutes.

This is not a navigation or safety product. For anything that matters — a boat, a walk across sand that floods, a swim — use the official tables for your coast and local advice.

Global tide field: EOT20 (Hart-Davis et al., 2021, DGFI-TUM), CC BY 4.0, downsampled to 1°. Coastlines: Natural Earth. Astronomy: astronomy-engine (MIT). Sea level: Open-Meteo (CC BY 4.0), NOAA CO-OPS. Your place never leaves this device. No account, no ads, no tracking.