Nautical - Tidal Currents

The strong tidal currents of the Channel Islands warrant careful study of the Tidal Atlas, with the waters around Alderney demanding particular respect. But they are well worth that extra attention, as they provide unrivalled water quality and spectacular, ever changing coastal scenery.

At spring tides high water is approximately 0800/2000 GMT (8.9 range) and at neaps 0100/1300 (6.6m); slack water is approximately half tide.

In the charted area, the main stream runs N/NE (north/north east) at high water and S/SW (south/south west) at low water. Maximum tidal flow will be experienced at high and low water. Tidal rates vary from 5.25 knots during springs and 2.25 knots during neaps.


2012 Tide Table PDF