The best months to visit Western Sahara are May and April. See monthly temperatures, rainfall and rain days (1991–2020 averages) to plan your trip.
Average daytime high and monthly rainfall in Western Sahara: January 21°C / 7mm; February 22°C / 6mm; March 24°C / 6mm; April 24°C / 1mm; May 25°C / 1mm; June 27°C / 0mm; July 29°C / 0mm; August 30°C / 0mm; September 29°C / 4mm; October 27°C / 7mm; November 25°C / 5mm; December 22°C / 8mm.