Visiting local bars in Junín is more fun when the weather is good. These rainfall averages and temperatures can help you determine the best time for bar-hopping. The hottest months are usually November and October, with an average temperature of 10°C, while the coldest months are July and August, with an average of 8°C. The rainiest months in Junín are February, January, December and March, with each month seeing an average of 350 mm of rainfall.