As physically more or less exact theories of the land and sea breezes lead to results that are not correct in every respect, an attempt is made here to find an elementary solution for the problem. The solution is called an elementary one because the mutual influence of temperature distribution and velocity is not taken into account. A rather simple temperature distribution is adopted a priori, and the velocity distribution is calculated from it. In section 3 account is taken of the deflecting force of the earth's rotation; the result is found that in temperate latitudes the sea breeze when at full strength does not blow perpendicular to the coast. Abstract As physically more or less exact theories of the land and sea breezes lead to results that are not correct in every respect, an attempt is made here to find an elementary solution for the problem. The solution is called an elementary one because the mutual influence of temperature distribution and velocity is not taken into account. A rather simple temperature distribution is adopted a priori, and the velocity distribution is calculated from it. In section 3 account is taken of the deflecting force of the earth's rotation; the result is found that in temperate latitudes the sea breeze when at full strength does not blow perpendicular to the coast.