The desert regions experience not only the dry weather and the extremes of temperature, but also desert storms. These desert storms can be a real challenge to people who are caught in them, as these storms last for days. The deserts of Saudi Arabia are characterized by huge sand dunes, as tall as ninety meters. These sand storms are caused by the tropical continental winds, which blow from the southern part of Saudi Arabia.
Relatively tolerant Saudi Arabia weather is experienced in the inner highland and plateau regions. The climate is cooler in these parts and rainfall is more frequent. Rainfalls in most parts of Saudi Arabia occur due to the tropical winds of the west and southwest. Most of the rainfall in Saudi Arabia occurs during the summer months.