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Nestled at the foothills of the Girnar mountain range in Gujarat's Saurashtra peninsula, Junagadh occupies a strategic position between the Arabian Sea to the southwest and the vast agricultural plains of the region. The city's coordinates at 21.5222°N, 70.4579°E place it approximately 60 kilometers inland from the coast, creating a distinctive urban character that blends historical fortifications with modern expansion. At an elevation of around 107 meters above sea level, Junagadh sits on a transitional terrain where the rocky outcrops of the Girnar hills meet the semi-arid plains, creating natural basins that can trap air pollutants. The surrounding landscape features extensive agricultural zones growing cotton, groundnuts, and wheat, with periodic residue burning contributing significantly to regional haze. Junagadh's position away from major industrial belts like Ahmedabad's corridor means local pollution stems primarily from urban activities rather than heavy industry, though the city serves as a commercial hub for surrounding rural areas. The urban-rural gradient shows dense settlement within the city walls giving way to peri-urban sprawl along transportation corridors, where road dust from unpaved surfaces mingles with vehicle exhaust. Proximity to the Arabian Sea provides some moderating influence during monsoon months, but the semi-arid climate and inland location allow pollution to accumulate during dry periods, particularly when cold season temperature inversions form in the topographic bowls created by surrounding hills.

Junagadh's air quality follows a distinct seasonal rhythm shaped by its semi-arid climate and agricultural calendar. During winter months from November through February, pollution reaches its peak as cooler temperatures create frequent ground-level temperature inversions that trap vehicle exhaust, domestic cooking emissions, and dust near the surface. These months coincide with post-harvest agricultural residue burning in surrounding fields, adding substantial particulate matter to already stagnant air conditions. Sensitive groups should limit outdoor activities during morning hours when fog often combines with pollution to create hazardous breathing conditions. The pre-monsoon summer from March to May brings extreme heat that lifts pollutants higher into the atmosphere through thermal convection, providing temporary relief at ground level despite increased dust from dry surfaces. The southwest monsoon from June to September dramatically improves air quality as heavy rains wash pollutants from the air and winds disperse local emissions, making this the optimal period for outdoor activities. However, occasional cyclonic systems from the Arabian Sea can temporarily worsen air quality through dust transport. Post-monsoon October sees a gradual deterioration as rainfall ceases and agricultural burning begins, creating a transition to the winter pollution season. Residents with respiratory conditions should monitor local air quality reports particularly during December and January when multiple pollution sources converge under unfavorable meteorological conditions.