The Persian Gulf International Airport weather station in southern Iran registered a heat index value — the apparent “feels like” temperature to the human body — of 152 degrees Fahrenheit (about 67 degrees Celsius) on Sunday.
The recorded temperature on Sunday around 12:30 p.m. local time was 104 degrees Fahrenheit (40 degrees Celsius).
Heat indexes of 160 degrees Fahrenheit are widely considered the upper threshold of what humans can endure for any more than a few hours. As heat index values climb to these thresholds, the human body feels strain and can lose its ability to cool itself down.
As of 10 a.m. ET Tuesday (5:30 p.m. local time), the recorded heat index was 130 degrees Fahrenheit (47 degrees Celsius). Earlier Tuesday, the heat index reached 146 degrees Fahrenheit (63 degrees Celsius).
This oppressive heat wave is part of the global average temperatures that have remained at record levels since July 3.
According to National Oceanic Atmospheric Association, the “highest dew point ever recorded, 95°F (35°C), was recorded at Dhahran, Saudi Arabia, on July 8, 2003. With an air temperature of 108°F (42°C), the heat index was 178°F (81°C).”