The best time to visit Hassi Messaoud is during the cooler months, specifically from October to April.
During this period, the desert climate is more pleasant, with daytime temperatures ranging from 68°F to 86°F (20°C to 30°C). This makes outdoor activities, such as exploring the surrounding desert landscapes or conducting business, much more comfortable. The evenings can be cool, so a light jacket is advisable.
For business travelers, these months offer ideal conditions for working without the intense heat of summer.