The time series data consist of the trajectories for three drifters, released on the 23rd October 2013, off the northern coast of the Maltese Islands. These surveys were carried out as part of the MED-JELLYRISK project which aimed to assess the socio-economic impacts of jellyfish blooms and implement mitigation measures. The data collected during these surveys were used to validate a jellyfish dispersion model. This project was supported by ENPI-CBC MED.