Bac Giang is located in the north of Vietnam and surrounded by Lang Son in the north, Quang Ninh, Hai Duong and Bac Ninh provinces in the south and south-east, Thai Nguyen Province and Hanoi in the west and north-west.
Its topography includes lowland, midland, and mountainous region. There are many rivers: Cau, Thuong, and Luc Nam rives.
There are two seasons: the cold and dry season (from October to March next year) and the hot and rainy season (from April to September). The annual average temperature is 24ºC.