Seles is a town and municipality in Cuanza Sul Province in Angola. The municipality had a population of 187,127 in 2014. It is on the Atlantic …Seles is a town and municipality in Cuanza Sul Province in Angola. The municipality had a population of 187,127 in 2014. It is on the Atlantic coast, roughly 55 kilometres west by road from Amboiva and 78 kilometres east by road from Sumbe.