Extreme heat at World Cup raises safety concerns for players and fans

The 2026 World Cup is being played under potentially dangerous heat and humidity, with scientists attributing the conditions to climate change and warning that matches may become unsafe for players and fans. A heat dome over the eastern and central US has pushed heat indices to 46°C (115°F) in some host cities, particularly affecting Saturday's knockout match between Paraguay and France in Philadelphia Source: CNA Source: AP.

What's being done to protect players

FIFA has mandated three-minute hydration breaks for all matches, but has no rule to automatically postpone games due to extreme heat. The players' union FIFPRO warns that heat must "play a bigger part" in future scheduling decisions and has previously called for delays when wet-bulb globe temperatures (WBGT) exceed 28°C Source: The Guardian. However, some scientists and union representatives deem FIFA's guidelines inadequate Source: AP.

Impact on performance and health

Heat stress can impair decision-making and physical output, forcing players to adopt more conservative play Source: Euronews. A Guardian analysis found that nine group-stage matches were played in potentially dangerous conditions (WBGT ≥28°C) without air conditioning, with the hottest reaching 33°C Source: The Guardian. Fans also face risks: walking to stadiums on scorching pavement can expose them to temperatures up to 50°C (122°F) Source: Al Jazeera.