Tunisia's Sahara Desert
The Sahara Desert is a vast desert in North Africa that includes portions of Algeria, Chad, Egypt, Libya, Mali, Mauritania, Morocco, Niger, Sudan, Tunisia, and Western Sahara. It is the world's hottest desert, however, due to a lack of humidity, the temperature reduces throughout the night. The average yearly temperature is approximately 30°C although during the warmest months June- September the temperature can soar over 50°C. Temperatures can dip as low as -5 °C at night. Between October and May, when the weather is pleasant, is the best time to explore Tunisian Sahara. During the warmest months, several tour operators suspend operations.
Persians were also recognised as innovators in the fields of refrigeration, cooling, and ventilation.