Mercedes, in Buenos Aires, Argentina, is home to roughly 63,300 people in the America/Argentina/Buenos Aires time zone at 34.7°S latitude.
In 2025, Mercedes averaged an annual temperature of 62°F, with hottest temperatures reaching 96°F in December and lowest around 26°F in July. The city received approximately 50 inches of precipitation during the year.
View historical weather for Mercedes · More cities in Buenos Aires