Biffy Clyro Headlines TRNSMT Festival Amid Soaring Heat in Glasgow

On July 12, 2025, the TRNSMT festival in Glasgow reached new heights of both musical performance and temperature, with Scottish rock band Biffy Clyro headlining the second day of the event. As temperatures soared to 29°C, health officials urged attendees to stay hydrated and protect themselves from the sun, underscoring the challenges posed by the heatwave.

The festival, which has become a staple in the Scottish music scene, saw a diverse lineup of artists take the stage on Saturday, including notable performances from Fontaines D.C., Underworld, and a surprise set by Amy Macdonald. Norwegian pop star Sigrid, known for her infectious synth-pop, entertained fans while sporting a tartan football top, embodying the spirit of the event.

Despite the high temperatures, which festival stewards described as some of the hottest conditions they had ever experienced in Scotland, fans found ways to enjoy the music. Many sought shade or cooled off under water sprays administered by staff, as Dr. Emilia Crighton, Director of Public Health at NHS Greater Glasgow and Clyde, emphasized the importance of communal care during such extreme weather.

"For those attending TRNSMT in Glasgow, we would continue to ask festival-goers to look after themselves and others so everyone can enjoy themselves safely," Dr. Crighton stated, reiterating the availability of sunscreen at first aid tents and the necessity of hydration.

The previous day had set a lively tone for the festival, with 50 Cent headlining and indie rockers Wet Leg making headlines for their commentary on global issues such as the war in Gaza. The weekend will culminate in a performance by Snow Patrol, marking a significant close to this year’s event.

This year's festival has not been without its challenges. Police Scotland reported six arrests on the opening day for various offenses, including police assault and hate crime, highlighting the need for ongoing safety measures at large events.

As Glasgow continues to bask in the summer heat, the festival stands as a testament to the resilience of its fans and the thriving music culture in Scotland. The implications of such weather conditions on public events raise questions about future festivals and the measures that will be necessary to ensure safety and enjoyment for all attendees. With extreme heat projected to become more common, organizers may need to adapt their strategies to enhance safety protocols for the well-being of festival-goers.

As the TRNSMT festival progresses, the music scene in Glasgow remains vibrant, drawing both local and international talent while also navigating the complexities of hosting large-scale events in a warming climate. The festival not only showcases musical talent but also serves as a platform for social awareness, making it a pivotal part of Scotland's cultural landscape.