Meteorological drivers and PM2.5 pollution have a significant relation; however, in Addis Ababa city, there is a critical research gap, underscoring the need to understand seasonal and diurnal variability to develop effective air quality management strategies in rapidly urbanizing, high-altitude cities of the Global South. Thus, this study provides a comprehensive analysis of PM₂.₅ and associated meteorological variables in the city. The dataset, comprising hourly observations from January 2023