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Dubai occupies a unique position on the southeast coast of the Persian Gulf in the Arabian Desert, with its urban core centered around the Dubai Creek—a natural seawater inlet that historically divided the city into Deira and Bur Dubai districts. The city's geography is predominantly flat coastal desert, with elevations rarely exceeding 50 meters above sea level, situated within the larger Rub' al Khali desert basin. This low-lying topography, combined with its location between the Hajar Mountains to the east and the vast Arabian Desert to the south, creates a natural amphitheater effect that traps air pollutants. Dubai's rapid urban expansion has transformed its landscape through extensive land reclamation projects like the Palm Jumeirah and The World islands, creating artificial coastlines that alter local wind patterns. The city's position along major shipping routes in the Persian Gulf exposes it to maritime emissions, while its urban-rural gradient shows intense development concentrated along the coast with desert hinterlands. Industrial zones like Jebel Ali Port—the world's largest man-made harbor and a major industrial hub—sit southwest of the city center, contributing significantly to air pollution. The lack of natural vegetation and water bodies beyond the Gulf coastline means there are few natural air purifiers, while the urban heat island effect intensifies pollution concentration in the densely built-up areas.

Dubai experiences two primary seasons that dramatically influence air quality patterns throughout the year. During the hot summer months from May to September, intense solar radiation and temperatures frequently exceeding 40°C create photochemical smog as pollutants from vehicles, industry, and construction undergo complex atmospheric reactions. These months often see the highest pollution levels due to temperature inversions that trap pollutants close to the ground, particularly during early mornings when cool marine air from the Gulf meets hot desert air. The shamal winds from the northwest can occasionally bring dust storms from the desert, significantly worsening particulate matter concentrations. From October to April, cooler temperatures and more frequent northeasterly winds generally improve air quality, with December through February typically offering the cleanest air as increased wind dispersion and occasional rainfall help clear pollutants. However, winter months can experience radiation fog formation, especially in low-lying areas near the Creek and newer developments, which can temporarily trap pollutants. Sensitive groups including those with respiratory conditions should avoid outdoor exertion during summer afternoons when ozone levels peak, and during dust storm events when particulate matter concentrations spike dramatically. The best months for outdoor activities are generally November through March, when temperatures are milder and pollution dispersion is more effective.