Climate Insights for San Miguel de Tucumán

The climate in San Miguel de Tucumán is warm and mild. The average annual temperature is 18°C and approximately 1693mm of precipitation falls per year. San Miguel de Tucumán receives a notable amount of rainfall throughout the year, including during its driest month. San Miguel de Tucumán is in the Southern Hemisphere. The seasons are reversed — summer runs from December to February, while winter falls between June and August. The summer months are: January, December, February. The coldest months are July, June, August, when temperatures can drop to 6°C.

Temperatures in San Miguel de Tucumán vary considerably across the year, with a 23°C difference between the coldest and warmest months. The warmest month is January, when average highs reach 29°C and the mean temperature sits around 24°C. July is the coolest month, with minimum temperatures around 6°C and an average of 11°C. On average, daily temperatures fluctuate by about 10°C between overnight lows and afternoon highs. The sharpest temperature change occurs between April and May, with a 4°C shift in average temperatures.

San Miguel de Tucumán is a fairly wet location, receiving approximately 1693mm of precipitation annually, which averages out to around 141mm per month. The wettest month is January, averaging 262mm of rainfall. February and March also tend to see above-average precipitation. The driest month is August, with just 31mm. That's 231mm less than January, the wettest month. Rainfall is heavily concentrated in certain months, creating a distinct wet and dry season. Visitors should plan around these patterns, as the difference between peak and low months is dramatic.

San Miguel de Tucumán is relatively calm, with an average annual wind speed of 9km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is October, averaging 10km/h, though still comfortable for most outdoor activities. The calmest conditions occur in June, with average winds dropping to 8km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 2km/h between the calmest and windiest months.

It is currently autumn in San Miguel de Tucumán, which began on March 20, 2026. San Miguel de Tucumán is in the Southern Hemisphere, where the seasons are reversed — spring starts in September, summer in December, autumn in March, and winter in June. The warmest period peaks in January at around 29°C, while the coldest stretch bottoms out in July near 6°C. Winter is next, beginning on June 21, 2026 — 90 days from now.

The best time to visit San Miguel de Tucumán is during September, when the weather is most comfortable for travellers. During these months, average temperatures hover around 17°C with modest rainfall averaging 55mm per month. By contrast, January can be uncomfortably hot with highs reaching 29°C, while July is the coldest period with lows dropping to 6°C. A light rain jacket is recommended, though showers are generally brief and shouldn't disrupt your plans.

The table below shows monthly climate averages for San Miguel de Tucumán based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Celsius (°C). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Wind speed is the average sustained speed in kilometres per hour (km/h). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.