The opposition had lobbied for the vote to take place before the end of this year, while a number of Kazakh officials had wanted it to be postponed by a year.
President Nursultan Nazarbaev has ruled the vast, sparsely populated, oil-rich country since 1989, and his current term expires in January.
In a meeting last month in Brussels, the European Union expressed concern to Kazakh officials with the country's election laws. EU representatives said they will consider the conduct of the pending presidential election as an important test of Kazakhstan's commitment to democratic reforms.
Kazakh Senate Selection Holds Unusual Significance