The Yosakoi Festival takes place each year on August 9–12 and transforms Kōchi into one of the great spectacles of Japanese summer. Around 200 dance teams — companies, university clubs, and community groups — compete over four days in multiple venues across the city, each performing a choreographed routine set to a version of the traditional Yosakoi melody remixed in their own style. The costumes range from historical to outlandish.
The dancing is genuinely thrilling: athletic, precise, and emotionally charged. Audience participation is common. The city's wide boulevards fill with moving stages and cheering crowds; at night the main venues stay lit and the energy shifts toward the competitive finales. Accommodation needs to be booked months in advance; come mid-week if you can, as the final weekend is the most crowded. The Kōchi Castle grounds and Obiyamachi area are the best central vantage points.