Salta Province

Salta Province Weather in December

Average temperatures, rainfall, sunshine and the best places to visit in Salta Province, Argentina in December.

Planning a journey to Salta Province, Argentina this December and curious over the weather conditions to await? Your essential details are found on this page, answering your query:

What to Expect in Salta Province in December

Salta Province, Argentina is a region in Argentina. Salta Province, Argentina offers a broad spectrum of weather patterns. In December, one might encounter temperatures that range from mild to very warm, and precipitation levels ranging from high to heavy.

Temperatures

The average maximum daytime temperatures vary from mild in Iruya at 18°C (64°F) to very warm in San Ramón de la Nueva Orán at 33°C (91°F). Nighttime temperatures generally drop to 21°C (70°F) in San Ramón de la Nueva Orán and 7°C (45°F) in Iruya. In Salta Province, Argentina, December typically stands out as the hottest month of the year. If you're planning a visit during this time, it would be wise to come prepared. Packing light and breathable summer cloths will ensure you stay comfortable throughout your stay.

To explore the conditions in Salta Province, Argentina in more detail, check the map below.

Precipitation

In December, precipitation varies across different areas. From high rainfall in San Carlos with an average of 102 mm (4 in) to heavy rainfall in La Caldera with 330 mm (13 in).

Average sunshine

Most destinations offer generous amounts of sunshine this December. For example, Salta gets approximately 198 hours of sunlight, perfect for anyone wanting bright, sunny days.

Explore Salta Province by month

Pick a month to see the average temperature, rainfall and sunshine in Salta Province — and find the best time to visit. (based on Salta)

Best Places to Visit in Salta Province in December

Click on a destination dot for more details. Toggle the map to compare temperatures or precipitation across Salta Province.

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).

Popular Destinations in Salta Province

What is the weather like in December for some of the most popular destinations in Salta Province, Argentina?

Temperature range in Salta Province (December)

Precipitation variation in Salta Province (December)

Salta

In December Salta generally has high temperatures with maximum daytime temperatures around 25°C (77°F), minimum nighttime temperatures around 15°C (59°F) and heavy monthly rainfall. So on average the conditions are poor that month.

November
December
January
Max temperature
24°C (75°F)
25°C (77°F)
25°C (77°F)
Min temperature
13°C (55°F)
15°C (59°F)
16°C (61°F)
Monthly sun hours
199 hours
198 hours
183 hours
Monthly rainfall
208 mm (8.2 in)
284 mm (11 in)
307 mm (12 in)
Monthly rainy days
9 days
13 days
14 days
Weather conditions

Tartagal

In December Tartagal generally has very high temperatures with maximum daytime temperatures around 33°C (91°F), minimum nighttime temperatures around 21°C (70°F) and heavy monthly rainfall. So on average the conditions are poor that month.

November
December
January
Max temperature
33°C (91°F)
33°C (91°F)
33°C (91°F)
Min temperature
20°C (68°F)
21°C (70°F)
21°C (70°F)
Monthly rainfall
148 mm (5.8 in)
208 mm (8.2 in)
217 mm (8.5 in)
Monthly rainy days
9 days
11 days
12 days
Weather conditions

Iruya

In December Iruya generally has moderate temperatures with maximum daytime temperatures around 18°C (64°F), minimum nighttime temperatures around 7°C (45°F) and heavy monthly rainfall. So on average the conditions are poor that month.

November
December
January
Max temperature
17°C (63°F)
18°C (64°F)
17°C (63°F)
Min temperature
5°C (41°F)
7°C (45°F)
7°C (45°F)
Monthly rainfall
173 mm (6.8 in)
222 mm (8.7 in)
243 mm (9.6 in)
Monthly rainy days
8 days
16 days
17 days
Weather conditions

Cafayate

In December Cafayate generally has high temperatures with maximum daytime temperatures around 24°C (75°F), minimum nighttime temperatures around 12°C (54°F) and high monthly rainfall. So on average the conditions are pleasant that month.

November
December
January
Max temperature
23°C (73°F)
24°C (75°F)
24°C (75°F)
Min temperature
11°C (52°F)
12°C (54°F)
13°C (55°F)
Monthly rainfall
73 mm (2.9 in)
113 mm (4.4 in)
160 mm (6.3 in)
Monthly rainy days
8 days
12 days
14 days
Weather conditions

San Lorenzo

In December San Lorenzo generally has high temperatures with maximum daytime temperatures around 24°C (75°F), minimum nighttime temperatures around 14°C (57°F) and heavy monthly rainfall. So on average the conditions are poor that month.

November
December
January
Max temperature
22°C (72°F)
24°C (75°F)
24°C (75°F)
Min temperature
12°C (54°F)
14°C (57°F)
14°C (57°F)
Monthly sun hours
199 hours
198 hours
183 hours
Monthly rainfall
244 mm (9.6 in)
325 mm (13 in)
349 mm (14 in)
Monthly rainy days
9 days
13 days
14 days
Weather conditions

Is your destination not in the list? Have a look at all destinations in Salta Province, in Argentina.

In our records: Argentina December extremes

Notable December records observed across cities in Argentina in our climate database (1976 – 2026). Historic readings can vary in quality, so treat these as illustrative.

  • In our records, the warmest December day in Argentina reached 48°C (118°F) in Santiago del Estero on December 19, 1995.

Popular cities in December

Day & night temperatures, rainfall and average weather in Salta Province in December.

City Weather Day temp Night temp Rainfall
Salta 25°C (77°F) 15°C (59°F) 284 mm (11 in)
Tartagal 33°C (91°F) 21°C (70°F) 208 mm (8.2 in)
Iruya 18°C (64°F) 7°C (45°F) 222 mm (8.7 in)
Cafayate 24°C (75°F) 12°C (54°F) 113 mm (4.4 in)
San Lorenzo 24°C (75°F) 14°C (57°F) 325 mm (13 in)
Cachí 19°C (66°F) 7°C (45°F) 151 mm (5.9 in)

Salta Province weather in December: frequently asked questions

What is the weather like in Salta Province, Argentina in December?

In December, Salta Province, Argentina generally has poor weather conditions. Salta sees daytime temperatures near 25°C (77°F), with nights cooling to roughly 15°C (59°F).

What is the average temperature in Salta Province, Argentina in December?

Average temperatures in Salta Province, Argentina during December range from a nighttime low near 15°C (59°F) to a daytime high around 25°C (77°F) in Salta.

Does Salta Province, Argentina get a lot of rain in December?

Yes. December brings heavy rainfall to Salta Province, Argentina, with Salta averaging around 284 mm (11 in). Expect frequent showers and pack accordingly.

Is December a Good Time to Visit Salta Province, Argentina?

In our opinion, December may not be the ideal time to visit Salta Province, Argentina due to the typically poor weather in Salta.

On average, the best time to visit Salta Province, Argentina is in August and September with generally perfect weather in Salta. In contrast, January, February, March and December tend to have poor weather conditions.

Interested in more climate information?

We have much more information about the climate in Salta Province.

Weather and climate has detailed information for every country in the world. Are you going to Argentina? Get detailed historical weather averages for many cities in Argentina.

Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal travel conditions. Find out where to go with our weather planner.

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