In terms of precipitation, rainfall in Buenos Aires ranges from 1.1 - 20.7 inches per month. October is typically the wettest month, when rainfall can reach 20.7 in. February is typically the driest time to visit Buenos Aires when rainfall is around 1.1 in.
If weather is an important factor for your trip to Buenos Aires, use this chart to help with planning. For those seeking warmer temperatures, March is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of October, when temperatures are typically at their lowest (around 77.0 F).