Juanjui, in San Martin Department, Peru, is home to roughly 37,700 people in the America/Lima time zone at 7.2°S latitude.
In 2025, Juanjui averaged an annual temperature of 78°F, with hottest temperatures reaching 94°F in September and lowest around 65°F in July. The city received approximately 155 inches of precipitation during the year.
View historical weather for Juanjui · More cities in San Martin Department