San Carlos is a city of approximately 13,500 people in Rio San Juan Department, Nicaragua. Located in the America/Managua time zone at 11.1°N latitude.
In 2025, San Carlos recorded an average annual temperature of 78°F. The hottest temperatures reached 93°F in April; the coolest were 69°F in March. Total precipitation for the year was 112 inches, with the wettest month being June.
View current conditions and forecast for San Carlos · More cities in Rio San Juan Department