Hattingen-Mitte weekly market:

The weekly market Hattingen-Mitte takes place on Saturdays at the car park of the tax office, Rathausplatz 19.
Opening hours: Saturdays from 7.30 a.m. - 1 p.m.

On Tuesdays, the weekly market Hattingen-Mitte takes place on Große Weilstraße between Gelinde and Flachsmark. Opening hours: Tuesdays 9.00 a.m. - 3.00 p.m.

Hattingen-Welper weekly market:

The weekly market Hattingen-Welper takes place on the square at Thingstraße.
Opening hours: Fridays 7.30 a.m. - 1 p.m.

Current information on the weekly markets in the city of Hattingen can be found at here.