2025-08-28 Time series of water temperature (°C) and salinity at Ottagono Alberoni (OA) study area (45.348391°N, 12.307300°E) in the Lagoon of Venice (IT), from 02/11/2023 to 18/07/2024. Data were collected at a depth of about –1 m relative to mean sea level. Measurements were carried out using a HOBO U24 data logger, which continuously recorded (5-minute interval) temperature and Electrical Conductivity (100–55 µS/cm). Conductivity data were temperature-compensated using the Non-linear Sea Water Compensation (PSS-78) algorithm, converted to Specific Conductance at 25 °C, and subsequently to Salinity (PSS-78). Conductivity values were calibrated against in situ measurements obtained with portable probes at intervals of approximately 1–2 months. The measurements were performed during bio-ecological studies. eng CC BY-NC (CC BY-NC): This license enables reusers to distribute, remix, adapt, and build upon the material in any medium or format for noncommercial purposes only, and only so long as attribution is given to the creator. (https://creativecommons.org/licenses/by-nc/4.0/) https://dataregistry.lteritalia.it/catalogue/uuid/bd05fd05-1283-4faa-909f-5800173eb409 CNR metadata https://dataregistry.lteritalia.it/api/v2/cnr/bd05fd05-1283-4faa-909f-5800173eb409 Water temperature and salinity at Ottagono Alberoni (OA) station in the Lagoon of Venice (IT) from November 2023 to July 2024.xlsx https://dataregistry.lteritalia.it/documents/166/download No geographic description provided. 12.3063 12.3083 45.349391 45.347391