San Miguel de Tucumán Weather in December
With daytime temperatures of 30°C (86°F) and nighttime lows of 19°C (66°F), December in San Miguel de Tucumán brings high temperatures during the day. Do keep in mind that December is part of the rainy season, with frequent and often heavy rainfall.
Rainfall in San Miguel de Tucumán in December
San Miguel de Tucumán is in the rainy season in December, with rain on around 10 days and an average of 244 mm (9.6 in). Rainy season showers here are typically intense, often clearing quickly but coming down hard while they last.
Temperature in San Miguel de Tucumán in December
Temperatures in San Miguel de Tucumán in December top out at 30°C (86°F) and drop to 19°C (66°F) overnight. Overall, the month follows a fairly predictable daily temperature pattern. Nights cool down to 19°C (66°F), so a light jacket or extra layer is useful once the sun goes down. On the plus side, the cooler nights make for comfortable sleeping conditions. This is typically the warmest month of the year, so light summer clothing is a good idea.
Sunshine in San Miguel de Tucumán in December
Enjoy a sunny month with about 233 hours of sunshine, even though this month falls in the wet season. There is still enough sun to enjoy the outdoors.December in San Miguel de Tucumán has its charm, but if you're looking for destinations with pleasant temperatures and sunny skies, our weather planner can help you explore other options in the world.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Argentina, check out our San Miguel de Tucumán's climate page.
San Miguel de Tucumán Temperature in December
Min Temperature
19°C (66°F)
Max Temperature
30°C (86°F)
Chance of Rain
34%
Precipitation
244 mm (9.6 in)
Rainy days
10 days
Humidity
71%
Sunshine
233 hours
Percentage Sunshine
55%
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in San Miguel de Tucumán typically stay consistent throughout December, with daily highs averaging around 30°C (86°F). Nights are warm, with lows typically ranging from 19°C (66°F) to 22°C (72°F).
Average temperatures in December
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in December
Historical weather for San Miguel de Tucumán in December
Browse day-by-day weather records for San Miguel de Tucumán spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
San Miguel de Tucumán historical weather extremes in December
Based on 49 years of weather observations (1976-2025), these are the most extreme conditions recorded in San Miguel de Tucumán.
- On December 21, 2011, temperatures climbed to 43°C (109°F), marking the warmest December day on record.
- San Miguel de Tucumán experienced its chilliest December day on December 20, 1980, reaching only 16°C (61°F).
- The coldest night in December in San Miguel de Tucumán was on December 18, 2022, with a minimum of 12°C (54°F).
Best Places in Argentina in December
Find out more about the weather in Argentina and which places have the best travel conditions in this month. See all of Argentina in December →
perfect weather
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What to Wear in San Miguel de Tucumán in December
Warm but pleasant conditions in San Miguel de Tucumán in December. Focus on lightweight, maybe with natural fabrics, cotton blend shirts, comfortable shorts, and breathable footwear. A light cover-up for sun protection is smart too. It's going to pour! Pack a good poncho and prepare for very wet conditions. You'll definitely want to pack sunglasses and sunscreen. There will be plenty of bright sunshine this month.What To Do in San Miguel de Tucumán in December
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit Argentina, check out our San Miguel de Tucumán's climate page.
Temperature Rainfall Sunshine Humidity
See the full San Miguel de Tucumán climate overview or explore weather in Argentina.
