Rising summer temperatures are set to pose a significant health risk for participants and spectators at the 2026 FIFA World Cup, which will be staged across sixteen venues in the United States, Canada and Mexico. Research from the National Oceanic and Atmospheric Administration shows that July – the month in which most matches will be played – has become progressively hotter since systematic records began in 1895. In several host cities, wet‑bulb globe temperatures – a composite measure that includes humidity, wind speed and solar radiation – are projected to exceed 32 °C in the afternoon, particularly in Dallas, Houston and Monterrey.
Donal Mullan, senior lecturer at Queen’s University Belfast, warned that 14 of the 16 venues are likely to experience extreme heat conditions that could endanger players, officials and fans. Heat stress can cause dehydration, nausea, headaches, stroke and, in severe cases, death. The concern follows recent heat waves that broke temperature records across large parts of the United States and the experience of the 2022 Qatar World Cup, which was moved to winter to avoid similar risks.
FIFA and local organisers are implementing a series of measures to mitigate the threat. All matches will include mandatory three‑minute hydration breaks at the halfway point of each half, regardless of ambient conditions. Teams are allowed up to five substitutions and a minimum of three rest days between games. Outdoor fixtures scheduled for the hottest periods have been reduced, and kick‑off times in vulnerable markets have been shifted to cooler windows. Where possible, matches will be placed in fully covered stadiums, such as Vancouver’s BC Place and Dallas’s air‑conditioned arena.
A dedicated Heat Illness Mitigation and Management Task Force is finalising heat‑risk alert systems and standardised medical protocols. Medical staff will be stationed at fan festivals and stadiums, equipped with ice immersion packs and climate‑controlled treatment areas. In Vancouver, an official heat warning would trigger the deployment of additional drinking fountains, misting stations and multilingual public‑safety messages. Similar initiatives are planned in Seattle, Dallas and other host cities, including the use of air‑conditioned buses and shaded resting zones for volunteers and workers.
The combined strategy aims to reduce heat‑related illnesses and limit pressure on local health services during the tournament. Organisers acknowledge that climate change will make future summer sporting events increasingly hazardous, highlighting the need for ongoing adaptation in venue design and scheduling. The 2026 World Cup therefore serves as both a showcase of football and a test case for managing extreme weather in large‑scale international events.
