In 2019, the Ligurian DLTM Consortium (CNR, DLTM, ENEA, IIM, INGV) has installed a coastal cabled, real-time, monitoring station, at around 10 m depth in the Eastern Ligurian Sea (44°4’54.96”N 09°52’50.12”E in S. Teresa Bay, La Spezia). The coastal station monitors temperature, pressure, water conductivity and derived salinity at 10 m depth with very high frequency (10 minutes interval). The observatory has as main purpose the study of coastal ecosystems, hydrodynamic processes and, in the long term, the effects of climate change. It is also a test site for new instruments and sensors. Due to maintenance activities some records are missing. The two-year dataset proposed here will be upgraded annually.