A microclimate is a small area with a different climate to its surroundings. This could be due to nearby landmarks, such as lakes or hills, affecting wind patterns or sheltering the area from the sun. They can also be produced by artificial structures such as buildings. (https://www.metoffice.gov.uk/weather/climate/climate-explained/climate-zones)
Note
Physical state of the atmosphere close to the earth's surface in a restricted area and in relation to living organisms