Sŵn Festival is an annual music festival celebrated in Cardiff, Wales, during the third full week in October. This event is organized by BBC Radio 1 and was initiated by DJ Huw Stephens and promoter John Rostron. The festival features a variety of music performances and draws significant participation, reflecting the broader trend of music festivals in the UK, where 241 were hosted in 2020. Sŵn Festival typically spans three days, with festivities that include live music and cultural activities. Cardiff is known for hosting several music festivals throughout the year, highlighting its vibrant music scene.