According to astronomers, Al-Marzam, the thirteenth season in Kuwait, is the country's warmest time. This period, often referred to as the "ember of heat," is the most intense of the year, according to Khaled Al-Jamaan, the Astronomical Center's director of public relations and media. The equinox in Kuwait occurs in September, which coincides with the astronomical beginning of fall and end of summer, according to the al-Ujairi calendar's astronomical calculations. The sun's rays will be less penetrating after this season, when the Suhail star first appeared.

The name of the Star of Al-Marzam, which refers to the astronomical name of the extraordinarily bright star Sirius, which is adrift at a distance of 8.6 light-years from Earth, is the Marzam season. The brightness of this star is around twice that of Suhail. Al-Jamaan noted that the Kulaybin season, or the wet season, comes after Al Marzam and comes before the Suhail season.