Onderstroom Festival 2026 brings dance, music, and theater for the whole family. This year together with the Aaltjesdagen, with stages filled with DJs, bands, and a children's program. A day full of fun for young and old, followed by an evening to really let loose yourself!
When the days get longer and the temperature rises, it is time again to fill the Wijde Wellen with dance, music, and happiness: Onderstroom Festival 2026.
Unlike in previous years, the festival coincides with the famous Harderwijker Aaltjesdagen this year. Together, these two events push each other to an even higher level!
During the Festival, the various stages feature a diverse range of acts that will get you dancing and enjoying yourself. DJs, bands, and theater will not be missing either.
Once again this year, there is also a full-fledged children's program on Saturday afternoon, making Onderstroom Festival 2026 the music festival for the whole family. But don't forget to arrange a babysitter for the evening in advance, so the dads and moms can let loose just like in the old days.
