Tides and storm surges
Tides are the predictable rise and fall of the sea surface as the earth rotates while the moon’s gravity (as well as the sun’s) pulls on the oceans.
Read more about tides →
Storm surges are caused by the weather, especially low pressure systems (inverse barometer effect), strong winds and the earth’s rotation (forcing water towards the coast). Surges are in addition to tides, and computer models can forecast their combined levels alongside weather forecasts.
Read more about surges →
Interactive map of tide gauge networks
Use the map to find tide gauge measurements, tidal predictions and storm surge forecasts. Click the markers to see a summary of information available for each site.
Map: UK National Tide Gauge Network | South Atlantic Network