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Dubai occupies a unique position on the southeastern coast of the Arabian Peninsula, nestled within the larger emirate of Dubai in the United Arab Emirates. The city's geography is defined by its location along the Persian Gulf, with its urban core extending inland across a flat, arid coastal plain that gradually transitions into the vast Arabian Desert. This low-lying terrain, with elevations rarely exceeding 50 meters above sea level, creates a natural basin effect that traps pollutants, particularly during periods of atmospheric stability. Dubai's rapid urban expansion has transformed its landscape into a dense metropolis of skyscrapers, artificial islands, and extensive infrastructure, creating a stark urban–rural gradient where the city abruptly meets the desert. The surrounding region lacks significant agricultural zones but features industrial belts concentrated in areas like Jebel Ali, home to one of the world's largest ports and industrial complexes. Proximity to the Persian Gulf influences local microclimates, with sea breezes occasionally dispersing pollutants but also contributing to humidity that can exacerbate particulate matter formation. The city's position in a desert environment means it is inherently exposed to natural dust sources, while its role as a global trade and tourism hub intensifies anthropogenic emissions from construction, transportation, and energy sectors, creating a complex interplay between natural and human-made factors that degrade air quality.

Dubai's air quality follows a distinct seasonal pattern driven by its hot desert climate and meteorological conditions. During the winter months from December to February, cooler temperatures and occasional rainfall lead to relatively better air quality, though sporadic dust storms can still cause spikes in particulate matter. This period is generally favourable for outdoor activities, with mild weather reducing pollution accumulation. As spring arrives in March, air quality begins to deteriorate significantly, marking the start of peak pollution season that extends through summer. From March to July, extreme heat intensifies, creating thermal inversions that trap pollutants close to the ground, while increased construction activity and vehicle use add to emissions. The absence of strong prevailing winds during these months allows pollutants to accumulate, with desert dust storms becoming more frequent, particularly in April and May. Sensitive groups, including those with respiratory conditions, should limit outdoor exposure during this period and monitor air quality alerts. By late summer and into autumn, from August to November, conditions gradually improve as temperatures moderate and the shamal winds from the northwest become more consistent, helping to disperse pollutants. However, humidity can rise, potentially worsening ozone formation. Year-round, residents and visitors should be aware that Dubai's rapid development and desert location create persistent air quality challenges, with preventive measures like staying indoors during dust events and using air filtration recommended for vulnerable populations.