AbstractGeographical distribution across the Southern Hemisphere of 15‐year averages (23‐year averages in the Australian Region) of monthly anticyclonicity and cyclonicity as well as monthly anticyclone and cyclone immobility times, for the months of January, April, July and October for the years 1973–1987 (1965–1987 in the Australian Region) are presented in the form of maps.Comparisons are made with an existing atmospheric climatology of the Southern Hemisphere by the National Climate Centre of the Bureau of Meteorology, Melbourne covering the period 1976–1990 calculated from numerical analyses and with relevant climatologies contained in the World Survey of Climatology. References are made to past works relating to the climatology of the Southern Hemisphere and synoptic features of the climatology are