In Parun, the capital of Nuristan province, 23 people were killed in flooding, while water services for around 1,000 families were disrupted.
A delegation of private sector representatives also accompanied Baradar during the visit and provided cash assistance to families affected by the floods.
Additional assistance will focus on providing hygiene kits, access to safe drinking water and primary healthcare services to affected populations.
Provinces in the north, northeast, and parts of central Afghanistan have been among the hardest hit, with entire villages affected by sudden surges of water.