sydney dataDiscover, analyze and download data from City of Sydney Data hub. Download in CSV, KML, Zip, GeoJSON, GeoTIFF or PNG. Find API links for GeoServices, WMS, and WFS. Analyze withGreater Sydney Dam Levels. Greater Sydney catchment rainfall, total storage and water supply. HOW MUCH RAIN HAVE WE HAD? 3.3MM. 8.9MM FOR THE LAST WEEK.