“Wetter Messen Alle 16 Tage” (meaning “weather measured every 16 days” in English) is a weather forecasting technique based on the synodic period of the Moon. It originated in Germany and gained popularity in the 18th century.
The technique relies on the idea that weather patterns tend to repeat themselves in a 16-day cycle, corresponding to the time it takes for the Moon to complete one orbit around the Earth. By observing and recording weather data over a period of several years, it was believed that one could identify patterns and make predictions about future weather conditions.
