Confidence votes 27.9K. The mean temperature of the Sahara Desert is over 30 ºC (86 ºF). The average summer temperature is 30 ºC (86 ºF); winter temperature 13 ºC (55 ºF), considered low for a desert but a fact, apparently. Some months have average temperatures of 40 ºC (104 ºF), often reaching the 50 ºC (122 ºF).i person interested in temperatures, usually the temperature varies in the seasons, but the average temperature in the Sahara Desert is 90F - 110F, believe it or not, it can … reach to 335F.