UAE temperatures expected to fall by 5°C as summer gives way to autumn

Ibrahim Al Jarwan, Chairman of the Board of Directors of the Emirates Astronomical Society and a member of the Arab Union for Astronomy and Space Sciences, stated that Monday represents the final day of summer, with autumn commencing on Tuesday in the Northern Hemisphere, based on meteorological classifications. He explained that climatic seasons are mainly defined by the year's average temperatures, with summer starting in June and concluding in August, while autumn begins in early September and concludes in late November.

He further noted that meteorological or climatic seasons start at the beginning of the month to coincide with the global calendar used by most countries, ensuring consistent weather reporting. In contrast, astronomical seasons are determined by the sun's annual movement in relation to the earth, marking the timing of solstices and equinoxes, as well as changes in daylight duration and midday shadow lengths. This year, autumn, from an astronomical perspective, starts on September 23rd.

He also noted that September is marked by a significant decrease in temperatures. During the summer months, temperatures often exceeded 42°C, with lows staying above 29°C. However, throughout September, temperatures are expected to fall, with highs dropping below 39°C and lows falling below 27°C. This cooling trend will continue into October, with high temperatures expected to remain under 35°C and lows dipping below 22°C. By November, high temperatures are anticipated to be below 30°C, with lows under 18°C, bringing overall national highs to under 26°C and lows to under 15°C by the end of the autumn season.