 The soundscape project collected data on sound levels in the northern Adriatic Sea during the COVID-19 pandemic. The data includes sound pressure level measurements from nine monitoring stations, which are characterized by different natural conditions and anthropogenic pressures. These data can be used as a benchmark for scientists and policymakers who want to assess the risk of noise impacts on marine fauna in the Mediterranean Sea and worldwide. This article was authored by Antonio Peprizzo, Andrea Barbanti, Giulia Bafucci, and others.