The Saharan desert region of Algeria has a climate that is virtually rainless. In Salah averages less than one inch of rainfall per year. Summer temperatures are consistently high - with heat indices reaching extreme levels for four months of the year - but temperatures at night fall low enough to be quite tolerable. Winter nights can be chilly and frost is by no means unknown but the days are warm and sunny. During the summer, the Sahara region of Algeria is the source of a very hot, dusty, southerly wind called the Sirocco. These winds parch the plateaus of northern Algeria up to 40 days and reach the Tell coastal region for as many as 20 days
