This web-application provides real time, as well as time series of high-spatial resolution maps and analytics for air temperature and surface heat fluxes for the city of Heraklion, Greece, based on the Surface Urban Energy and Water Balances Scheme (SUEWS), that has been developed by the University of Reading.The application uses inputs from RSLab sensors network that includes the Wireless Sensors Network of meteorological stations and the two Flux Towers deployed in Heraklion city center and in a residential area. It uses data from the last 24 hours to model the urban surface energy balance in hourly basis. The last hour data are used to create air temperature at 2 m, net all-wave radiation and turbulent sensible heat flux maps, at 100 m x 100 m spatial resolution, resampled to 10 m x 10 m. Beyond latest data, time series, at hourly basis, and analytics for user-defined grid cells and for user-defined polygon can be generated on-the-fly. Read the detailed documentation here.