Bad Radkersburg is a spa town in the southeast of the Austrian state of Styria, in the district of Südoststeiermark. In the south the town borders Slovenia on the Mur River. On the other side of the river lies its twin city Gornja Radgona in the Slovenian Styria region. Bad Radkersburg is a spa town featuring a thermal spring with a temperature of 80 °C. This and the longest sunshine duration in Austria make it an attractive site for tourism with over 100,000 stays per year.