[1] However, including the commune of Rouissat, found in Ouargla's urban area, gives a total population of 191,136.

These Berbers of Ouarghla then embraced Ibadi doctrines, which later made the town an attractive refuge for the citizens of Tahert.

In the 11th century, Banu Hilal, an Arab tribe living between Nile and Red Sea, settled in Tunisia, Tripolitania (western Libya) and Constantinois (eastern Algeria) which was Ouargla party.

In the 19th century, the town was known for being on a caravan route to the south, and a starting point for exploring the southern Sahara.

The area across from these shops was used to display sand roses and mineral specimens of all sizes and shapes.

The centre circular structure is now a meat market, surrounded by rows of grocers' and farmers' stalls selling all sorts of fresh produce and fruits.

The rainfall recorded in the city of Ouargla is limited to only 55 mm (2.2 in) per year in average.

The year of 1903, which was the rainiest in Ouargla, still had nine constant months with a rainfall of 0 mm, from February to October.