WBGT heat – A new climate analysis warns that a quarter of 2026 World Cup matches could face dangerous heat, urging host cities to expand cooling and medical care.
Extreme heat could turn the 2026 FIFA World Cup into more than a sweat-soaked sports spectacle, climate scientists warn.. A new analysis projects that about a quarter of the tournament’s matches may be played under conditions that raise the risk of heat-related injury for both players and fans. with the threat grounded in how heat affects the human body—not just the thermometer.
The report. produced by the climate modeling organization World Weather Attribution (WWA). indicates that dangerous heat conditions are plausible for a substantial share of the tournament. including the final in New Jersey on July 19.. Scientists briefed officials from the tournament’s 16 host cities across the United States. Canada and Mexico. urging them to put practical cooling and safety systems in place before kickoffs begin.
A central goal of the briefing was to push host cities to invest in hydration stations and cooling infrastructure.. The scientists’ call reflects a basic reality of heat stress: conditions that look manageable based on air temperature can become far more hazardous when humidity. sunlight. wind and the body’s ability to shed heat combine unfavorably.
To capture that difference. the analysis relied on the wet bulb globe temperature (WBGT) system. a metric designed to measure how heat is actually affecting the body.. Unlike forecasts based on air temperature alone. WBGT accounts for evaporative cooling. radiant heat and wind—factors that can determine whether people cool down efficiently or continue to overheat.
In the framework used by the study. the International Federation of Professional Footballers’ Associations (FIFPRO) sets a WBGT of 26 degrees Celsius as the point at which cooling and other heat-safety measures should be implemented.. The analysis found that one in four scheduled matches could face WBGT conditions at or above 26 degrees Celsius.
Higher risk is flagged at a WBGT of 28 degrees Celsius. At this level of heat stress, FIFPRO advises postponing matches when possible. The new modeling suggests five games could occur when WBGT reaches or exceeds 28 degrees Celsius.
Miami emerges as a focal point in the risk picture.. The study reports that six open-air matches in the city have a “near certain” chance of exceeding the 26-degree-C WBGT threshold.. It further estimates that on July 11 and July 18 there is a one-in-33 chance the WBGT will surpass 28 degrees Celsius—an important detail for planners deciding how resources should be distributed across dates.
The researchers also point to uneven preparedness across venues.. While some stadiums in the hottest cities may have air conditioning. others do not appear to have adequate cooling in place.. According to the analysis. the three highest-risk venues are in Miami. Kansas City and East Rutherford. New Jersey. the location of the July 19 final.
For the final. the model estimates a one-in-eight chance of WBGT reaching 26 degrees Celsius and a one-in-37 chance of reaching 28 degrees Celsius.. Even when extreme thresholds are not guaranteed. the probabilistic outlook is meant to support contingency planning—especially because heat-safety systems must be coordinated long before match day.
This is not the first time researchers have sounded alarms about heat and World Cup scheduling.. A 2025 study in the International Journal of Biometeorology reported that four host cities exceeded the 28-degree-C WBGT threshold more than half the time during the summer.. And the precedent from the 2022 World Cup in Qatar still looms: that tournament was moved from summer to winter to reduce health threats from extreme temperatures.
During the WWA briefing, scientists warned that heat can affect player performance as well as health.. The recommendation was not just to monitor conditions, but to apply a range of protective measures during play.. Among the precautions discussed were heat breaks. shaded areas. ice towels. cold fluids. altered warm-up schedules and enhanced medical monitoring during matches scheduled for hotter conditions.
Spectators face their own hazards. the scientists noted. whether they are packed into stadiums or attending outdoor events connected to the tournament.. Heat risk can vary widely because fans are medically diverse. may include people who are very young or older. and may have conditions such as cardiovascular disease. kidney problems or metabolic disorders.. Travel itself can add another layer of exposure before fans even reach the venue.
For organizers, the implications extend beyond comfort. The report urges sufficient medical staffing, ready access to water and shade at match sites, and transport planning that accounts for heat exposure during movement to and from games.
The analysis also ties the current risk to climate change.. The researchers say that when the U.S.. last hosted the World Cup in 1994, temperatures in host cities averaged 0.7 degrees Celsius cooler than they are today.. In their view. the shift helps explain why conditions associated with physiological heat stress are now more likely and more intense than during the previous tournament.
At the same press briefing. Joyce Kimutai. a research associate at London’s Imperial College working on extreme weather and climate change. said the changes are confidently attributable to anthropogenic climate change.. In other words. the forecast is not merely about weather variability; it is about a climate baseline that is moving toward higher heat stress.
As the 2026 tournament approaches, the most urgent lesson from the modeling may be logistical.. When safety thresholds are based on WBGT. the practical question becomes how quickly organizers can identify risky conditions and activate cooling. hydration. scheduling adjustments and medical support.. For a global event drawing large crowds and international travel. those decisions can shape health outcomes as much as the match results.
2026 FIFA World Cup heat risk WBGT threshold extreme heat climate player safety cooling sports climate science heat stress spectators
So they’re saying the World Cup matches might be too hot? Weather is weather I guess.
WBGT sounds like some kind of scoreboard stat lol. But if it’s really dangerous then why are they even holding it in the first place? Put it in the fall like common sense.
I don’t get it, they said New Jersey final July 19 like that’s automatically worse? Isn’t that still “late summer” not like peak death heat. Also they want hydration stations… they already sell water at stadiums though?
Quarter of the matches?! That sounds exaggerated. Half the time TV people overreact and then it’s fine. But I guess if the “heat risks” are real, start canceling games early or players are gonna blame it on climate instead of fitness. Also why Canada and Mexico hosts too, do they just copy/paste the schedule without checking the forecasts?