Arab Weather - Jeddah and the coastal areas of western Saudi Arabia are facing a wave of high humidity over the coming days. This will lead to a significant rise in perceived temperatures, reaching stifling and exhausting levels that may exceed 50°C at times. This makes the atmosphere feel hotter than thermometers indicate.
The latest weather updates from the Arab Weather Center indicate that maximum temperatures in Jeddah will range between 37 and 40°C, while surface humidity levels will reach between 50 and 60%. These are extremely high levels that directly contribute to an increased sensation of heat.
At these temperatures, the perceived temperature along the coasts of Makkah, including Jeddah , is expected to reach record levels exceeding 50°C, increasing feelings of fatigue and heat exhaustion, especially during the afternoon hours.
The reason is due to what is known as the "heat index," a scientific measure that combines actual temperature and humidity to estimate the temperature that the human body feels. When humidity rises, the body's ability to cool itself through sweating decreases. The evaporation of sweat from the skin slows down, making a person feel much hotter than the actual temperature.
September is one of the months most affected by humidity in Jeddah and the Red Sea coast in general. This is because seawater has stored large amounts of thermal energy during the past summer months, leading to increased evaporation and a significant increase in atmospheric humidity levels.
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