Fig. (9) Reanalysis ECMWF. a) The mean surface relative humidity (RH) during the 11 sea breeze days in August 2015. b) The mean surface relative humidity (RH) during the 17 large-scale pressure gradient days in August 2015. c) Surface RH on 4 August 2015 at 1200 UTC, and d) Surface RH on 28 August 2015 at 1200 UTC.