More than a million Muslims gathered in Mecca, Saudi Arabia, for the Hajj pilgrimage which began June 27, 2024 [1], [2].
The event is critical because extreme heat poses a direct threat to the health and safety of millions of worshippers during their religious rites.
Temperatures in Mecca rose to between 42°C and 47°C [3], creating dangerous conditions for those participating. To manage the heat, pilgrims utilized giant fans and ice cream to stay cool [3]. Ahmed Al-Mansour, a pilgrim from Egypt, said the heat is unbearable and that they are using these methods to cool down [3].
Saudi officials have attempted to mitigate the risks associated with the weather. Dr. Ahmad Al-Shugairi, the Saudi Minister of Hajj, said the government has taken all necessary measures to ensure the safety of pilgrims [4].
The scale of the gathering is immense, with more than one million worshippers gathered in Mecca [3]. Some reports indicate the number of pilgrims arriving from outside Saudi Arabia reached more than 1.5 million [1].
Beyond the immediate weather concerns, experts are looking at long-term environmental trends. Dr. Fatima Al-Mutairi, a climate researcher, said climate change could make future pilgrimages more dangerous [5]. This warning suggests that the extreme temperatures witnessed during the 2024 pilgrimage may become a recurring challenge for the region.
“"The heat is unbearable; we are using ice cream and giant fans to cool down,"”
The intersection of mass religious gatherings and rising global temperatures creates a significant public health risk. As extreme heat events become more frequent in the Arabian Peninsula, the Saudi government will likely need to invest more heavily in permanent cooling infrastructure and adaptive scheduling to prevent mass heat-related casualties during the Hajj.
