Lemera is one of the groupements (groupings) within the Bafuliiru Chiefdom, located in the Uvira Territory of the South Kivu Province in the eastern part of the Democratic Republic of the Congo (DRC). It is situated in the northwestern part of the Uvira Territory, approximately 60 kilometers north of Bukavu and 90 kilometers southwest of the border with Rwanda and Burundi. Lemera is in close proximity to several villages, including Kasheke, Nyambasha, Luzira, Lukayo, Kajuju, Lushasha, and Ihusi.

Uvira Territory is a territory in South Kivu, Democratic Republic of the Congo. It is bordered by Walungu Territory to the north, Mwenga Territory to the west, Fizi Territory to the south, and Burundi and Lake Tanganyika to the east. Its capital is Uvira.