Heat, Humidity and Thunderstorms Pose Risks at 2026 World Cup
With the 2026 World Cup underway, all 48 teams face a common opponent: the summer weather across North America, according to The Guardian. Matches will be played in 16 cities, from southern Mexico to Canada, with each venue presenting its own set of weather-related challenges.
Thunderstorms have already caused disruption before the tournament's first kickoff. England's warm-up match against Costa Rica in Orlando was delayed by approximately one hour after storms brought lightning and heavy rain, as reported by The Guardian. US venue safety regulations suspend play when lightning is detected within eight miles and require a 30-minute wait after the last strike before resuming.
The Guardian identifies Miami and Houston as the most lightning-prone host cities, though Houston's stadium has a retractable roof. The greatest immediate risk of severe storms, capable of strong gusts and isolated large hail, lies in the northeastern US and southeastern Canada, potentially affecting matches in Toronto, Boston, and New York.
Heat and Humidity: The Broadest Challenge
While thunderstorms pose a sporadic threat, The Guardian reports that heat and humidity are likely to be the most pervasive hazards for players and spectators. Temperatures in Monterrey, Mexico, can be extreme on their own, but the humidity of the southeastern US may produce the greatest heat strain, even at lower temperatures.
Al Jazeera amplifies these concerns, reporting that climate experts have warned that one in four World Cup games could be played in very hot conditions. Al Jazeera's weather presenter Everton Fox stated that the 2026 World Cup could be the hottest on record since the tournament began in 1930, due to sharp rises in global temperatures. According to Fox, "around half a dozen of the venues are prone to extreme heat; places like Dallas, Houston, Miami and the Mexican venues are all likely to swelter."
Al Jazeera reports that approximately 26 of the 104 matches could reach at least 26°C on the Wet Bulb Globe Temperature (WBGT) index, with five games expected to be played in conditions of 28°C WBGT or higher. The Guardian explains that FIFA uses WBGT, which combines temperature, humidity, solar radiation, and wind, to assess heat-stress risk. Many exercise physiologists regard 28°C WBGT as the threshold where high-exertion play becomes unsafe, while FIFA's own threshold for considering action is 32°C. A 2025 study projected that 14 of the 16 host cities will exceed 28°C WBGT at least some of the time.
Player Concerns and Adaptations
The heat has already left its mark on players. Al Jazeera reports that photographs of European players training shirtless in the heat sparked concerns, with social media abuzz over sunburnt players dousing themselves with water to cool off. Norway's team wore ice collars during their friendly against Morocco. However, England captain Harry Kane dismissed speculation, stating that heat "won't be a factor" thanks to his team's training regimen.
FIFA has implemented measures to mitigate the heat, including three-minute hydration breaks, cooling infrastructure, adapted work-rest cycles, and delayed kickoff times, as reported by Al Jazeera. However, Al Jazeera notes that more than a third of games with high heat risk will be in venues without air conditioning, and that heat stress can impair thermoregulation, potentially causing dehydration, cramps, and increased fatigue.
Tropical Storms and Altitude
Beyond heat and thunderstorms, The Guardian reports that tropical storm risks are greatest for Mexican venues, Houston, and Miami, due to early Atlantic season patterns. The National Hurricane Center is currently monitoring a low-pressure area over the Bay of Campeche with potential for tropical cyclone formation.
Mexico City's altitude of 2,240 meters reduces oxygen availability, which can accelerate fatigue and alter ball flight, according to The Guardian. Canadian venues, by contrast, will likely remain comparatively cool with the lowest storm risk.
Competitive Fairness Questions
The uneven distribution of weather conditions has raised questions about competitive fairness, as reported by The Guardian. Al Jazeera notes that nations with players training in hotter climates may have a slight advantage. Some experts suggest FIFA could have confined games to northern parts of the US and Canada, but the tournament timing conflicts with European off-season traditions, while spring or autumn alternatives face tornado and hurricane seasons plus domestic sports conflicts.
As the tournament progresses, weather will remain a key variable, with both organizers and teams adapting to the challenges of a North American summer.