Residents of the UAE should start preparing for unpredictable weather fluctuations as the transition into the autumn season brings about changes in atmospheric pressure and wind patterns. Dr. Ahmed Habib, a climate expert from the National Centre of Meteorology (NCM), explained that while forecasts provide general predictions, local phenomena such as mountains or bodies of water can create microclimates. The transition period is marked by rapid and dramatic changes in weather during autumn, with sudden cloud cover and rain following dry days.
During the transition period, there is a decrease in temperature and an increase in fog due to a pressure system moving in from the north accompanied by winds. A low-pressure system extending from the west brings moisture into the air, leading to the formation of convective clouds over the UAE. Humidity levels will gradually rise, increasing the likelihood of fog formation, especially at night and during early mornings, particularly in coastal regions. The chance of fog formation is higher than during the summer months, according to Habib.
The month of September marks the end of summer, with temperatures starting to decrease especially during the night and the second half of the month. The autumn equinox officially occurred on September 22, resulting in equal sunlight for both the northern and southern hemispheres as the Sun crossed the celestial equator. After the equinox, days start to get shorter as we move towards winter, with the sighting of the Suhail star on August 24 signaling the transition from extreme heat to cooler temperatures.
Habib noted that the temperature does not drop sharply during the end of September, with an average decrease of about five degrees between September and November. Currently, temperatures range from 42°C to 45°C, decreasing to 38°C to 42°C in October and 35°C to 39°C in November. The country has seen an increase in relative humidity this month compared to August, leading to a higher likelihood of fog and mist in various regions. The impact of the Indian monsoon depression is weakening, while the UAE is influenced by desert thermal lows and strong winds.
In the northern and eastern regions of the UAE, there is a possibility of Cumulonimbus cloud formation, potentially bringing rain and thunderstorms. Habib emphasized that these weather patterns align with the UAE’s climate, referring to long-term weather patterns in the area. Despite the lack of rain in the short-term forecast for the next five days, residents should stay updated with the latest news and follow the National Centre of Meteorology for real-time updates on weather conditions.
As the UAE enters the autumn season, residents should be prepared for rapid and unexpected weather changes, including fluctuations in temperature, the formation of fog, and the possibility of rain and thunderstorms. By staying informed and following expert guidance, residents can better navigate the transition period and ensure their safety during unpredictable weather conditions. Stay tuned for the latest weather updates and be mindful of local phenomena that may impact microclimates in different regions of the UAE.
