Extreme heat risk and the potential implications for the scheduling of football matches at the 2026 FIFA World Cup

Donal Mullan, Iestyn Barr, Neil Brannigan, Nuala Flood, Oliver R. Gibson, Catherine Hambly, Alan T. Kennedy-Asser, Aimée C. Kielt, Tom Matthews, Madeleine Orr

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Abstract

Climate change is making extreme heat events more frequent and intense. This negatively impacts many aspects of society, including organised sport. As the world’s most watched sporting event, the FIFA World Cup commands particular attention around the threat of extreme heat. The 2022 tournament in Qatar was moved from summer to winter in response to this threat, and now attention turns to the 2026 tournament in North America with extreme heat risk across many of the 16 host locations. We examine this risk by modelling wet bulb globe temperature (WBGT) – a widely used measure of heat stress – for the host locations using hourly meteorological data for the period 2003–2022. Our results show that 14 out of 16 host locations exceed WBGTs of 28 °C, with four (nine) exceeding this threshold more than half the time during afternoons across the mean (hottest year) of the 20 year record. This threshold is important as the level beyond which some football governing bodies recommend match delay or postponement. A climatically sound argument is therefore presented to reschedule kick-off times outside the hottest afternoon hours for the host locations with highest heat risk at which no indoor air conditioned environment exists – primarily Miami and Monterrey, but also Philadelphia, Kansas City, Boston and New York. This study highlights the need to carefully assess heat risk ahead of major sporting events to help inform any potential interventions needed in the scheduling of matches and competitions in a warming climate.
Original languageEnglish
Pages (from-to)1-11
Number of pages11
JournalInternational Journal of Biometeorology
Early online date25 Jan 2025
DOIs
Publication statusPublished (in print/issue) - 25 Jan 2025

Bibliographical note

© 2025. The Author(s).

Data Access Statement

All data used in this study are freely available to download via the links provided in the “Materials and methods” section.

Keywords

  • Wet bulb globe temperature
  • Humidity
  • Exertional heat illness
  • Climate change
  • Sport
  • North America

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