Saudi: Temperatures hit 51.8°C at Makkah's Grand Mosque as Haj ends

Saudi Arabia on Monday warned of a temperature spike in Mecca as Muslim pilgrims wrapped up the Haj in searing conditions, with more than a dozen heat-related deaths confirmed.

One of the world's largest religious gatherings unfolded during the oven-like Saudi summer again this year, and authorities recorded more than 2,700 cases of "heat exhaustion" on Sunday alone, the Saudi health ministry said.

On Monday, according to the Saudi weather service, temperatures reached 51.8 degrees Celsius (125 degrees Fahrenheit) at Mecca's Grand Mosque, where pilgrims were circling the Kaaba, the large black cubic structure towards which all Muslims pray.

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In nearby Mina, where a spokesman for the national meteorology service said the temperature was 46C, other pilgrims were throwing stones at three concrete walls — a ritual known as "stoning the devil" that is the last major step of the haj, while struggling under the burning sun.

Jordan's foreign ministry said on Sunday that 14 Jordanian pilgrims had died "after suffering sun stroke due to the extreme heat wave", and that 17 others were "missing".

Iran reported the deaths of five pilgrims but did not specify the cause, while Senegal's foreign ministry said that three others had died.

An Indonesian health ministry official, currently in Saudi Arabia, said 136 Indonesian pilgrims had died during the haj including at least three of heat stroke.

"The holy sites today record the highest temperatures since the beginning of haj... that may reach 49 degrees Celsius, and we advise the guests of God not to be exposed to the sun," the health ministry said, according to state-affiliated Al-Ekhbariya channel.

The Saudi health ministry announced in a statement 2,764 cases of heat exhaustion on Sunday due to sun exposure and "non-compliance with guidelines", which include taking shelter from the sun during the afternoon.

"Prevention is the most important, and the commitment of pilgrims not to go out at peak times except when necessary, or to use an umbrella, would reduce the incidence of heat exhaustion," the statement said.

"Our health guidelines for the coming days are clear and easy: carry an umbrella, drink water regularly, and avoid exposure to the sun."

The haj is increasingly affected by climate change, according to a Saudi study published last month that said regional temperatures were rising 0.4C each decade.

Pilgrims in Mina on Monday poured bottles of water over their heads as authorities handed out cold drinks and fast-melting chocolate ice cream.

Azza Hamid Brahim, a 61-year-old pilgrim from Egypt, described seeing motionless bodies on the roadside as she made her way to and from the three concrete walls.

"The ambulances didn't know which way to turn. It looked like Judgement Day, the end of time," she said.

"It was a really hard day. We said to ourselves: 'That's it, we're going to die' because of the heatwave."

Arzu Farhaj of Pakistan said she struggled to find help for a woman who was lying on the roadside.

The woman looked to be without anyone accompanying her, "and the people were passing by," Farhaj said, adding she was unable to get security staff to call an ambulance for her.

• Hundreds of thousands flock to Makkah to perform Haj