The World Cup match between Portugal and Croatia is anticipated to face dangerously high temperatures, potentially exceeding guidelines set by world soccer’s governing body. Several matches have already triggered concerns, as the “wet bulb” temperature – a measure combining heat and humidity – is reaching critical levels. This raises significant health risks for players competing in such strenuous conditions. The “wet bulb” temperature considers how effectively sweat can evaporate, impacting the body’s cooling mechanisms. When evaporation is limited due to high humidity, the risk of heatstroke and exhaustion increases substantially. Officials are monitoring the situation closely and considering potential measures to protect athletes from heat-related illnesses. These potential measures have not been specified, but are needed to address the increasing frequency of these conditions.