San Isidro is a city of approximately 45,200 people in Buenos Aires, Argentina. Located in the America/Argentina/Buenos Aires time zone at 34.5°S latitude.
In 2025, San Isidro recorded an average annual temperature of 64°F. The hottest temperatures reached 97°F in February; the coolest were 30°F in July. Total precipitation for the year was 47 inches, with the wettest month being March.
View current conditions and forecast for San Isidro · More cities in Buenos Aires