Observations of sea level in real time and near real time are shown on the map.

A questionmark indicates that the latest data are more than two hours old.

The sampling frequency varies for the stations from 10 to 60 minutes.

The map is updated when the webpage is reloaded.

High frequency data are available from two British stations. Click the High frequency button to see these data.

Please be aware that on-line data might not be quality checked.

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