The influence of advection on spatial distribution of temperature in the Gulf of Gdansk is ana-lysed. In this analysis heat fluxes are completely omitted. The advection is brought about mainly by winds and depends particularly on their direction. Eastern winds curry the surface waters (usually contaminated) out of the Gulf and cause the inflow of cool bottom waters from the Gdansk Deep. The same winds induce the movement of the oceanic salty and oxidized water from the Bornholm to the Gdansk Deep via the Slupsk Channel. The advection during eastern winds is a desirable phenomenon for restoring the Gulf of Gdansk waters. The temperature distribution depends also on the advection influenced by meridional winds.