World Cup 2026 Heat Risk: Quarter of Games Face Dangerous Temperatures

World Cup 2026 faces alarming heat risk as a quarter of matches could exceed safety limits. The Silicon Review reports on scientists' warning that FIFA's cooling breaks are "inadequate" for the 104-game tournament.

A coalition of leading climate scientists has issued an urgent warning that the World Cup 2026 faces "dangerous" heat conditions, with roughly a quarter of the 104 matches likely to be played at temperatures exceeding safety limits recommended by global players' union FIFPRO.

The analysis by World Weather Attribution (WWA) reveals that the risk of extreme heat has nearly doubled compared to the 1994 World Cup in the United States, driven by human-induced climate change. Using the "wet bulb globe temperature" (WBGT) index which measures how effectively the human body can cool itself by factoring in heat, humidity, wind, and radiant sunshine scientists found that 26 matches could reach at least 26°C WBGT, the threshold at which cooling measures are recommended.

Five matches, scientists warn, could even exceed 28°C WBGT a level at which FIFPRO advises postponement until conditions become safer. The final at MetLife Stadium in New Jersey on July 19 faces a one-in-eight chance of exceeding 26°C WBGT and a 2.7% risk of reaching the hazardous 28°C threshold double the risk it would have carried in 1994.

Three of the 16 FIFA World Cup 2026 host stadiums in Dallas, Houston and Atlanta have air conditioning. However, more than a third of high-risk matches are scheduled at venues without cooling, including Miami, Kansas City, New York and Philadelphia. Six open-air matches in Miami face a "near certain" risk of exceeding safe WBGT levels.

In an open letter to FIFA, 20 leading health, climate and sports performance experts from the UK, USA, Canada, Australia and Europe called the governing body's current heat safety measures including three-minute cooling breaks per half "inadequate" and "impossible to justify" . They urge FIFA to adopt longer cooling breaks of at least six minutes, clearer protocols for match delays or postponements, and regular updates to guidelines based on the latest science.

FIFA responded that it has carried out "heat-risk planning" with measures including three-minute hydration breaks, climate-controlled benches, and real-time WBGT monitoring, adding that scheduling had been designed with climate considerations.

"These changes are confidently attributable to anthropogenic climate change," said Imperial College's Joyce Kimutai.

As scientists warn that a quarter of World Cup 2026 matches could be played in dangerous heat conditions, The Silicon Review examines whether FIFA's three-minute cooling breaks are enough and why the final at MetLife Stadium now faces a one-in-eight chance of extreme heat stress.

Q: How many World Cup 2026 matches could be played in dangerous heat?

A: According to World Weather Attribution, 26 of the 104 matches (roughly one quarter) could be played in conditions exceeding 26°C WBGT. Five matches face the risk of exceeding 28°C WBGT, a level at which FIFPRO advises postponement.

Q: Which World Cup 2026 host cities face the highest heat risk?

A: Miami, Kansas City, New York and Philadelphia are the highest-risk venues without air conditioning. Six open-air matches in Miami face a "near certain" risk of exceeding safe WBGT levels. Dallas, Houston and Atlanta have air-conditioned stadiums.

Q: Does the World Cup 2026 final face heat risk?

A: Yes. The final at MetLife Stadium in East Rutherford, New Jersey on July 19 has a one-in-eight chance of exceeding 26°C WBGT and a 2.7% risk of reaching the hazardous 28°C threshold about double the risk compared to 1994.

Q: What heat safety measures has FIFA implemented for World Cup 2026?

A: FIFA has mandated three-minute cooling breaks in each half of every match, climate-controlled benches for technical staff and substitutes, real-time WBGT monitoring, and scheduling adjustments with climate considerations.

Q: What will happen to FIFA regarding heat safety?

A: In an open letter signed by 20 leading experts, scientists are demanding longer cooling breaks of at least six minutes, clear protocols for delaying or postponing matches above 28°C WBGT, improved cooling facilities for players, and regular updates to guidelines based on current science .

Q: Who is most at risk from extreme heat at the 2026 World Cup?

A: While players face serious heat stress risks, fans are considered even more vulnerable because they are "more medically diverse" older, younger, or with underlying health conditions and lack the medical support provided to elite athletes.