Rauch is an Argentine city located inside the Province of Buenos Aires, more precisely in the center-east of this province. It is located 277 km from Buenos Aires and 272 km from La Plata. It is part of the Fifth Electoral Section of the Province of Buenos Aires.
Rauch's climate is temperate and humid with an annual temperature of 15.4 °C and relative humidity of 74%, the minimum humidity is 67% in summer and the maximum in winter is 86%, while the maximum temperature reaches in December, January and February reaching 22 °C on average. The remaining months correspond to mid-season temperatures and the end of summer and beginning of autumn correspond to the most stable temperatures.