A microclimate is a set of atmospheric patterns and processes that characterize a reduced environment or area.[1]​.

The factors that make it up are topography, temperature, humidity, altitude-latitude, light, vegetation cover and human works (urban architecture, industry, economic processes, etc.) that can affect the atmospheric variables (meteorological rather than climatic) and that serve to soften the extreme values (air conditioning in hot seasons, heating in cold seasons) of a generally urban place and that end up modifying on a very local scale the normal climate of a place.[1]​.

In addition to natural microclimates, there are artificial microclimates, which are created mainly in urban areas (see Urban Heat Island) due to their large heat and greenhouse gas emissions.[1]​.