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Santiago del Estero Weather in December
December in Santiago del Estero brings very high temperatures around 34°C (93°F) during the day, dropping to 22°C (72°F) at night, with quite a bit of rainfall expected, averaging around 136 mm (5.4 in) for the month.
Rainfall in Santiago del Estero in December
This month experiences about 9 days of rain according to historical data, averaging 136 mm (5.4 in). The rain this month tends to fall in heavier spells rather than light drizzle. When it rains, showers can be significant.
Temperature in Santiago del Estero in December
Temperatures in Santiago del Estero in December top out at 34°C (93°F) and drop to 22°C (72°F) overnight. Sunshine and humidity can make it feel even warmer than the raw temperature suggests. Nights remain mild at 22°C (72°F), making evenings a pleasant time to be outdoors.
Sunshine in Santiago del Estero in December
Expect a lot of sunshine this month, with about 227 hours of sun. These sunny conditions add to the overall experience.December in Santiago del Estero can still be great, but if you prefer pleasant temperatures along with dry and sunny conditions, our weather planner can help you explore other options in the world.
Santiago del Estero Temperature in December
Min Temperature
22°C (72°F)
Max Temperature
34°C (93°F)
Chance of Rain
30%
Precipitation
136 mm (5.4 in)
Rainy days
9 days
Humidity
63%
Sunshine
227 hours
Percentage Sunshine
53%
Santiago del Estero Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Santiago del Estero - and find the best time to visit.
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Santiago del Estero typically stay consistent throughout December, with daily highs averaging around 34°C (93°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 records for Santiago del Estero in December
Browse day-by-day weather records for Santiago del Estero spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Santiago del Estero historical weather extremes in December
According to our 49 years of weather records for Santiago del Estero, the following extremes were recorded between 1976 and 2025.
- The hottest December day on record in Santiago del Estero reached 48°C (118°F) (December 19, 1995).
- The lowest overnight temperature recorded in December was 7°C (45°F) (December 13, 2010).
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
pleasant
tolerable
unpleasant
poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).
What to Wear in Santiago del Estero in December
Hot weather in December means keeping cool is the priority. Loose-fitting clothes in natural fabrics work best. Pack plenty of shorts, tank tops, and breathable shirts. Don't forget a hat, swimwear, and comfortable sandals. Prepare for significant rainfall with proper waterproof clothing and shoes. Don't forget sun protection, sunglasses, sunscreen, and a hat. These are all good ideas with this much sunshine.
What To Do in Santiago del Estero in December
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Swimming9/10 -
Cycling7/10 -
Walking7/10 -
Camping6/10 -
Outdoor sports7/10
Santiago del Estero 3-Day Forecast
More climate data for Santiago del Estero
Temperature Rainfall Sunshine Humidity
See the full Santiago del Estero climate overview or explore weather in Argentina.
Popular in December
Where to go in December - average daytime high across popular destinations.
Córdoba
30°C (86°F) Mendoza
30°C (86°F) Buenos Aires29°C (84°F) Villa Carlos Paz
27°C (81°F) Salta25°C (77°F) Mar del Plata24°C (75°F) San Martín de los Andes
18°C (64°F) San Carlos de Bariloche18°C (64°F) Bucket list
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