Achkarren is part of the town of Vogtsburg im Kaiserstuhl, a small town in the German Kaiserstuhl region, and is located in the southernmost part of the town. It also borders the town of Ihringen. The valley of Achkarren faces west and is 5 km from the Rhine river and 7 km from Breisach. The German temperature hotspot (highest average temperature) is located between the center of Achkarren and the town of Ihringen.