The Festival d'été de Québec 2026 brought together established international acts and homegrown Quebec talent across the city's various venues for just over a week. Major performers including Muse, Luis Fonsi, and Patrick Watson anchored the programme, whilst smaller stages hosted local psychedelic and folk acts in a more intimate atmosphere reminiscent of village celebrations. The festival atmosphere ranged from relaxed daytime performances—where attendees enjoyed beer and ice cream whilst watching bands like Les Lunatiques—to elaborate evening productions featuring elaborate costumes and stagecraft.

The festival served as both a musical celebration and a showcase for Quebec City itself, with artists often commenting on the city's beauty. Notable moments included Klô Pelgag's touching performance where her daughter's camera perspective was projected on large screens, and ensemble acts like Mother Mother and Kesha delivering theatrical interpretations of their work. The event drew diverse audiences and was characterised by friendly crowds and a sense of artistic experimentation across its multiple stages.