APAwire - APA wire CLIENTS ONLY, Mecca- 15 June 2024. Muslim pilgrims arrive on Mount Arafat during the Hajj 2024 pilgrimage, southeast of Mecca, Saudi Arabia, 15 June 2024. Pilgrims began flocking on the plains of Mount Arafat since early hours of the day to perform one of the most important rituals of the Hajj pilgrimage. Saudi authorities said that over 1.5 million pilgrims arrived in Saudi Arabia for this year's Hajj season. Muslims attending this year's Islamic Hajj pilgrimage will face the challenge of a significant rise in temperatures, which poses a threat to the health of pilgrims, according to the Ministry of Health statement, as the National Center for Meteorology (NCM) expected temperatures to range between 45 and 48 degrees Celsius at the holy sites.