Aseer Region is entering the Al-Wasm season with a sharp contrast in climate: nights are getting colder on the mountain tops, while the Tihama plains and coast keep their familiar warmth, giving residents and visitors a choice of ways to enjoy the outdoors.

According to Eng. Hamed Al-Wadei, a researcher in Aseer's agricultural calendar, Al-Wasm begins astronomically on 16 October and lasts 52 days, split equally into two periods of 26 days each, known locally as the "seventeenth" and "fifteenth" conjunctions. It spans four stellar stations: Al-Awwa, Al-Simak, Al-Ghafr and Al-Zubana. The name, he explained, comes from the season "marking" the land with green and reviving its plant cover.

Al-Wadei said signs of the season include migratory birds crossing the region's skies, the start of the harvest of pure Sidr honey, clouds shifting eastward with the westerly jet stream, and a clear gap between warm days and cool nights. Mild daytime weather and building rain-bearing cumulus clouds make it well suited to farming and tourist trips, he added.

In the highlands, low clouds and thick fog settle over peaks and valleys, drawing nature lovers and photographers, while Tihama's appeal grows as the mountains turn colder, with its hills, valleys and open land turning green again after the rains.

Knowledge of the seasons has long shaped life in Aseer, guiding farm work, the tracking of crop ripening and the timing of harvests.

The National Center for Meteorology's outlook for October to December 2026 points to likely above-normal rainfall over most of the Kingdom this October, Aseer included, along with above-average temperatures. The report noted that these are general indicators and that daily bulletins set out the exact timing and intensity of weather conditions.