Afghanistan, all year round
The full Afghan chadri (otherwise known as burqa) covers the wearer's entire face except for a small region about the eyes, which is covered by a concealing net or grille.
Before the Taliban took power in Afghanistan, the chadri was infrequently worn in cities. While they were in power, the Taliban treatment of women required the wearing of a chadri in public. Officially, it is not required under the present Afghan regime, but its use is variable over the country.