‘Inadequate’: Experts Warn FIFA’s 2026 World Cup Heat Protocols Put Players at Risk

With the 2026 FIFA World Cup just weeks away, a growing chorus of climate scientists and medical experts is sounding the alarm: the governing body’s plan to handle extreme heat is simply not enough. In a blunt assessment, a panel of international experts has labeled current safety measures as “inadequate,” warning that players and fans could face dangerous health risks across North America this summer.

The tournament, spanning the United States, Canada and Mexico, is set to begin on June 11. However, new data suggests that a significant portion of the 104 scheduled matches will be played under conditions that could exceed safe thresholds for human athletic performance. According to an analysis by the climate modeling organization World Weather Attribution (WWA), roughly a quarter of the games are likely to experience heat levels that pose a genuine threat to those on the pitch and in the stands.

The concern isn’t just about a few hot afternoons. The risks extend all the way to the tournament’s climax, with researchers warning that the final in New Jersey on July 19 could be played under dangerous heat conditions.

The Gap Between Policy and Science

FIFA has not entered the tournament empty-handed. The governing body has already outlined a series of heat protection measures designed to mitigate the impact of the summer sun. Currently, the protocol includes:

• Mandatory Cooling Breaks: Three-minute breaks in each half of a match to allow players to hydrate.
• Infrastructure: Climate-controlled benches for substitutes and technical staff.
• Monitoring: The use of Wet Bulb Globe Temperature (WBGT) readings to track heat stress in real-time.

On paper, these look like standard precautions. In practice, experts say they are “impossible to justify” given the latest scientific understanding of climate change and human physiology. In an open letter to FIFA, health and sports performance specialists argued that these guidelines fall short of what is necessary to prevent serious heat-related illness.

The primary point of contention is the rigidity of the current rules. Experts are urging FIFA to implement stricter safeguards, including significantly extended cooling breaks and, more importantly, clearly defined triggers for delaying or postponing matches when temperatures hit critical levels.

Why Air Temperature Doesn’t Tell the Whole Story

To understand why scientists are so worried, you have to look past the thermometer. While a 35°C (95°F) day is hot, it’s the Wet Bulb Globe Temperature (WBGT) that determines if a player will collapse. For those unfamiliar, WBGT is a composite measure that factors in air temperature, humidity, wind speed, and radiant heat (solar radiation).

Here is the rub: the human body cools itself primarily through the evaporation of sweat. When humidity is high, sweat doesn’t evaporate, and the body’s core temperature skyrockets. This is why a “dry heat” in Arizona feels different from a “humid heat” in Mexico City or New Jersey. WBGT provides a more accurate picture of how the body is actually experiencing the heat.

FIFA’s guidelines suggest that when WBGT levels approach or exceed 32°C, organizers should consider additional precautions. However, researchers warn that in 14 of the 16 host stadiums, conditions are expected to reach or surpass these dangerous levels. In the southern U.S. And northern Mexico, daytime temperatures frequently climb toward 40°C, and when combined with high humidity, the risk of heatstroke becomes a critical concern.

The Geography of Risk

The 2026 tournament is a logistical behemoth, but the heat risk is not evenly distributed. While matches in Canada may be manageable, the venues in the southern United States and Mexico are the primary flashpoints. In these regions, the combination of direct sunlight and stagnant, humid air creates a “pressure cooker” effect for athletes performing high-intensity sprints for 90 minutes.

Climate scientists are calling on officials in all 16 host cities to move beyond the basic FIFA requirements. The demand is for a massive investment in “cooling infrastructure,” including expanded hydration stations and advanced cooling zones for both players and the thousands of fans who will be exposed to the elements for hours at a time.

What This Means for the Game

Beyond the medical risks, extreme heat changes how football is played. When players hit the wall of heat exhaustion, the quality of the product drops. We see a decline in pressing intensity, slower recovery times, and a higher susceptibility to muscle injuries.

If FIFA does not adjust its protocols, we could see a tournament defined by attrition rather than talent. Coaches may be forced to use substitutions not for tactical advantages, but as a survival mechanism to keep players from overheating. There is also the question of fairness: if one team plays in a mild evening breeze in Vancouver and another faces a 34°C WBGT afternoon in Mexico, the competitive integrity of the tournament is compromised.

The Path Forward

The warning from the scientific community is a call for transparency and agility. The experts aren’t asking FIFA to cancel games, but to acknowledge that the climate of 2026 is not the climate of 1998 or 2010. The “standard” protocols are no longer sufficient for the extreme weather patterns now common in North America.

As the June 11 kickoff approaches, the world will be watching not just the ball, but the thermometers. Whether FIFA heeds these warnings or sticks to its current script will likely determine if the 2026 World Cup is remembered for the magic on the pitch or the danger in the air.

Daniel Richardson, Editor-in-Chief of Archysport, has covered multiple FIFA World Cups and Olympic Games over a 15-year career in sports journalism. He oversees all editorial content across nine sport verticals at Archysport.

Next Checkpoint: FIFA is expected to provide updated venue-specific health and safety briefings as teams begin arriving in North America in early June.

Do you think FIFA is doing enough to protect the players, or is the risk too high? Let us know in the comments below.