This study aims to utilize the Sea Breeze Index (SBI) to identify sea breeze occurrences along the Romanian Black Sea coastline. The primary objective is to enhance the understanding of local climatology and validate empirical findings through a theoretical approach using the Copernicus European Regional Reanalysis (CERRA) database. By applying the SBI, we aim to delineate sea breeze patterns and their temporal variations. Preliminary results indicate that the SBI provides a more robust investigation and offers a comprehensive exploration of sea breeze dynamics. Sea breeze occurrences have been classified into four distinct types: blocked by offshore synoptic flow, sea breeze regime, embedded in onshore synoptic currents, and inhibited by a negative thermal gradient. The findings reveal a significant 70% increase in case detection compared to empirical methods, with over 80% of cases associated with sea breezes embedded in the synoptic current. The study also highlights discrepancies between the methods, providing insights into the strengths and limitations of each approach. Furthermore, it serves as a foundation for future research aimed at refining methodologies and improving weather forecasting accuracy.