Climate: In As Saffānīyah, the summers are long, sweltering, and arid; the winters are cool, dry, and windy; and it is mostly clear year-round. Over the course of the year, the temperature typically varies from 53°F to 106°F and is rarely below 47°F or above 109°F.
The hot season lasts for 4.1 months, from May 24 to September 28, with an average daily high temperature above 98°F. The hottest day of the year is July 28, with an average high of 106°F and low of 88°F. The cool season lasts for 3.3 months, from December 1 to March 9, with an average daily high temperature below 74°F. The coldest day of the year is January 25, with an average low of 53°F and high of 66°F.