Tucumán is one of several regions in Argentina, with temperatures that range from 19°C (66°F) in June to 30°C (86°F) during the peak of December. We've based our full climate overview on data from San Miguel de Tucumán, the region's most prominent city. For more detailed climate information about other cities in the area, please see the section beneath the map further down the page.
The weather in Tucumán during March, April, May, June, July, August and September is comfortably warm, with average temperatures ranging from 19°C (66°F) to 27°C (81°F).
Precipitation in Tucumán varies considerably throughout the year. The wettest conditions occur in January with 317 mm (12 in) of rain, while August stays relatively dry with 42 mm (1.7 in). The region experiences its rainy season during January, February, March, November and December, when monthly rainfall can range from 195 mm (7.7 in) to 317 mm (12 in).
Visitors hoping to maximize their time in the sun should consider planning their trip for August, when daylight hours are at their peak.