World Cup heat levels signal costly era for 2030 hosts

Nearly one in five matches at this year’s World Cup were played in heat and humidity levels that the global players’ union, Fifpro, has previously stated should trigger delays or postponements. An analysis of the tournament’s 104 matches found that approximately 20 games reached a wet bulb globe temperature at or above 28C. Another 23 matches took place in cities experiencing those conditions, though stadium air conditioning mitigated the heat indoors.

The findings represent a stark stress test for the sports industry’s ability to operate safely as global temperatures rise. Extreme weather introduces severe scheduling disruptions and forces costly infrastructure investments in mitigation technology for organizers and sponsors. “The 2026 Fifa World Cup matches have introduced a true stress test of heat mitigation and preparedness,” said Joshua L DeVincenzo, an assistant director at Columbia University’s National Center for Disaster Preparedness.

Reliance on air conditioning is not a scalable solution, with only three stadiums at this year's tournament featuring full climate control. In Philadelphia, air temperatures hit 38C during a match, while even air-conditioned Dallas saw outside asphalt reach a dangerous 50C. Every match played in Dallas, Houston and Miami breached the 33.9C WBGT threshold.

The financial and legal liabilities extend well beyond the pitch. “We learned from this World Cup that, in addition to player safety and health, important precautions must be considered for spectators, volunteers and stadium staff long before the day of the match,” DeVincenzo said. He noted that infrastructure gaps like long walking distances without cover put attendees at high risk of heat stress.

The implications are immediate for Europe, as the 2030 World Cup is scheduled across Spain, Portugal and Morocco—regions already experiencing intensified heat waves. “The lesson for everyone in the industry is that with a warming planet, heat conditions will play a bigger part in tournament and league scheduling decisions in the future,” Fifpro previously stated. After 2030, the tournament moves to Saudi Arabia in 2034, where organizers have shifted the event to winter to avoid summer temperatures exceeding 40C.

“The climate crisis is hitting the things we all need, like a stable climate, clean air and affordable food, as well as the things we love, like football and other sports,” said Simon Stiell, executive secretary for the United Nations climate body. As Sunday’s final approaches amid a record-breaking US heatwave and wildfire smoke warnings, the tournament is serving as a costly preview of the new normal.