Saudi Arabia is experiencing its coldest weather since 2016, meteorologists said Thursday, with overnight temperatures dropping below zero in the country's north over the past two days.

In Tarif, on the border with Jordan, the temperature hit minus 5 degrees Celsius (23 degrees Fahrenheit), according to the weather services. It dropped to minus three in Hail further southeast, and minus 2 in Arar on the border with Iraq.

In the capital Riyadh, the temperature dipped close to zero and the streets were deserted Tuesday and Wednesday nights.

The desert kingdom is known for its extreme heat, particularly during summer. "The country is experiencing its most intense cold snap since 2016," Hassan Abdallah from the Wasm meteorological centre, told AFP Thursday.

In neighbouring Iraq, where summers are also scorching, Baghdad residents woke up Tuesday to find the city carpeted in white from only its second snowfall in a century. The last recorded snowfall in the city was in 2008.