Overview
- An analysis by World Weather Attribution warns about 25% of the 104 tournament matches could exceed recommended thermal safety limits and that at least five matches may reach or surpass an 82.4°F (28°C) WBGT level.
- Wet-bulb globe temperature, or WBGT, factors in temperature, humidity, solar radiation and wind and is used by health bodies because it better predicts heat stress than air temperature alone.
- FIFA has set a 32°C WBGT postponement threshold and mandated three-minute hydration breaks at mid‑half, a standard that players’ union FIFPRO and the American College of Sports Medicine say is higher than safe practice.
- The Miami opener between Uruguay and Saudi Arabia was played under a local heat advisory and showed how FIFA’s rules operate in real conditions, raising immediate concerns about player fatigue, cramping and strain on stadium medical services.
- Experts and WWA specialists say hydration breaks should be paired with clearer safety triggers, adjusted warm-ups, cooling infrastructure and schedule changes because climate-driven warming has raised the annual odds of extreme WBGT at several host cities.