Why is the Wasm season characterized by frequent thunderstorms?

Written By سنان خلف on 2025/10/18

This article was written originally in Arabic and is translated using a 3rd party automated service. ArabiaWeather is not responsible for any grammatical errors whatsoever.

As soon as the Wasm season begins in the Kingdom of Saudi Arabia, unstable weather conditions begin to affect the region in an escalating manner. This is accompanied by a noticeable increase in thunderstorm activity compared to other times of the year. This activity is due to a number of atmospheric factors that create an ideal environment for the formation of cumulus clouds, lightning, and thunderbolts. These factors include:

Thermal differences between air masses

During the Wasm season, Saudi Arabia experiences significant temperature differences between atmospheric layers, as cold air masses advance from the north and meet warm, humid air masses coming from the south. This convergence creates atmospheric instability, leading to the formation of high-altitude cumulonimbus clouds accompanied by lightning, thunder, and lightning.

Red Sea Low Activity:

The Red Sea low pressure contributes to pumping more moisture into the lower layers of the atmosphere, which enhances the upward movement of warm, humid air and increases the density of thunderstorms. This interaction between low humidity and cold air masses makes storms more severe and frequent during the Wasm season.

In short, the Wasm season witnesses intense thunderstorm activity in Saudi Arabia due to the convergence of cold, northern air masses with warm, humid, southern air masses and the activity of the Red Sea low pressure system. This makes it a period of intense rainfall and lightning in the western and southwestern regions of the Kingdom.

This article was written originally in Arabic and is translated using a 3rd party automated service. ArabiaWeather is not responsible for any grammatical errors whatsoever.


Browse on the official website



What is the thunderstorm belt (Squall line) that will cross the UAE and Oman tonight and tomorrow?Gaza: Heavy rain clouds observed affecting the sectorImportant | A severe and exceptional rainy weather system will hit several Gulf countries at the end of the week, accompanied by strong lightning and hail.Riyadh | Red alert for heavy rain, lightning, and hail in the coming hoursIn a dangerous development, severe and exceptional thunderstorms await ships stranded in the Strait of Hormuz.The peak of the rainy weather system affecting the region will be from Wednesday to Friday, coinciding with the passage of a deep low-pressure system.Video | Breathtaking moments as a young Saudi man rescues a child from a rainwater puddle on the first day of EidThunderstorms with tropical characteristics will affect many Arab countries for the rest of the month. How is that?Video | The mountains of Tabuk in Saudi Arabia are covered in snow and temperatures drop to zero degrees Celsius