Hawkesbury River - Marramarra Creek Entrance UV IndexAustraliaNSWSydneyHawkesbury River - Marramarra Creek Entrance1-Day3-Day Graph Plots Open in Graphs UV Forecast NOAAHawkesbury River - Marramarra Creek Entrance UV forecast issued yesterday at 9:06 pm. Next forecast at approx. 9:06 pm. UV IndexGet WillyWeather+ to remove ads