The study of countries, cities, provinces, and states. Each has a birth chart that is used to forecast trends and major events affecting that entity. Mundane astrologers would use a city’s chart, for example, to forecast a natural disaster, or a country’s chart to forecast the general welfare of the people for a certain time period.

This branch of astrology also includes the study of wars, peace agreements, presidential inaugurations and other government-initiated events. From the birth chart erected for the start of the event the astrologer can predict the outcome.

Weather forecasting, or astrometerology, is another area included in mundane astrology.