ERA5 2 m air temperature maps are widely used to analyse temperature variability, identify heatwaves and cold spells, investigate climate variability, and distinguish regional and local temperature patterns. They support climate monitoring, extreme temperature assessment, urban climate and heat island studies, land–atmosphere interaction research, surface energy balance studies, agriculture, renewable energy, air quality and atmospheric chemistry research, wildfire risk assessment, environmental consulting, and operational decision-making. They are also invaluable for scientific research, university teaching, scientific publications, and communicating weather and climate information through clear, high-quality visualizations.