The present invention provides a luminaire (1), in particular a street lamp. The luminaire comprises at least one lighting means (5), such as at least one light emitting diode, at least one acoustic sensor (2) configured to measure environmental sound, and a processing unit (3). The processing unit (3) is configured to identify an environmental situation of the luminaire (1), in particular the street condition at the street lamp, on the basis of at least one characteristic of the measured environmental sound, such as the amplitude, frequency or pattern of the measured environmental sound.