In recognition of the exposed nature of the offshore Great Australian Bight (GAB) environment, the Australian Southern Bluefin Tuna Association (ASBTIA) has called for a better understanding of the climatology of the physical meteorological and oceanographic conditions which contribute to the ‘sea-state’ and ocean conditions at a deep-water petroleum permit location in the GAB. This project will provide the oceanographic services required to identify, access and analyse long-time series of relevant meteorological/ocean parameters and statistically describe their climatology in order to better understand the ‘sea state’ characteristics of the GAB and how they compare with sites located within other international oil production regions.