A rare late-May heat wave affects the French Open at Roland Garros, with temperatures rising to around 33°C during the opening days, far above what is typical for late May in Paris. Players report that the conditions feel unusually hot, with some saying they have not experienced similar heat at Roland Garros since the Paris Olympics. The high temperatures are changing the clay-court surface, making it softer and altering how it plays. In response, groundskeepers spray the clay courts with water and use a salt solution to help manage moisture and maintain the playing conditions. Fans also face the heat, with some calling for more water and turning to sprinklers as the tournament begins. Overall, the heat wave increases pressure on both players and event staff as the tournament continues on clay that is sensitive to temperature and hydration.