Tides and Currents
The major current in the area is the Agulhas current flowing South Westwards. However, the core of the current tends to follow the edge of the Agulhas Bank some 50 nautical miles offshore, and has only a limited influence on coastal waters. Inshore currents are probably largely wind induced, resulting in complex current circulations. For example, it has been observed that a South West wind in the Gouritz to Mossel Bay region produces an East flowing current that breaks away from the shoreline at Cape St Blaize. It is predicted that this phenomenon would cause an anti-clockwise gyre to form in the bay itself.
Tidal heights at MHWS 1.8 m (6'), MHWN 1.2 m (4') and MLWN 0.6 m (2').
Wind and Sea
The predominant winds in the Mossel Bay area are South East in summer and North West in winter. However the wind direction is known to vary. The summer months have been taken as December, January and February and the winter as June, July and August.