The 10 most alternative cities in South America
Discover South America's top 10 alternative cities! From Valparaíso's vibrant streets to La Paz's high-altitude charm and Medellín's innovative spirit.
Iruya Weather in December
December in Iruya typically sees daytime highs of 18°C (64°F) and nighttime lows of 7°C (45°F). December falls within the rainy season, so heavy rainfall is to be expected.
Rainfall in Iruya in December
Iruya is in the rainy season in December, with rain on around 16 days and an average of 222 mm (8.7 in). Rainy season showers tend to be fairly substantial. A good rain jacket or umbrella is worth having with you most days.
Temperature in Iruya in December
December in Iruya brings typical temperatures with highs around 18°C (64°F) and lows of 7°C (45°F). Temperatures can feel cooler in the morning and evening, so layering is often the best approach. With lows around 7°C (45°F), nights are cold. The upside is that cool, crisp nights are often the best for a deep sleep.December in Iruya 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.
Iruya Temperature in December
Min Temperature
7°C (45°F)
Max Temperature
18°C (64°F)
Chance of Rain
52%
Precipitation
222 mm (8.7 in)
Rainy days
16 days
Iruya Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Iruya - and find the best time to visit.
Historical weather records for Iruya in December
Browse day-by-day weather records for Iruya spanning 21 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Iruya historical weather extremes in December
Based on 19 years of weather observations in Iruya between 2006 and 2025, these are the recorded extremes.
- On December 7, 2010, temperatures climbed to 22°C (72°F), marking the warmest December day on record.
- The coldest December day was on December 13, 2010, with a maximum of 8°C (46°F).
- Iruya registered its coldest December night on December 15, 2010, with temperatures dropping to 1°C (34°F).
- The wettest December day on record brought 32 mm (1.3 in) of precipitation to Iruya (December 4, 2021).
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 Iruya in December
For Iruya in December, you'll want flexible clothing. It's wise to pack cotton shirts, comfortable shorts, and a pair of jeans for cooler evenings. A light sweater or jacket is useful for air-conditioned spaces (like buses) or unexpected cool moments. Also bring a poncho, it will rain a lot! Waterproof everything you can.
What To Do in Iruya in December
We rated the following activities from 1 (least suitable) to 10 (best) to do.
-
Cycling5/10 -
Walking5/10 -
Camping3/10
Iruya 3-Day Forecast
More climate data for Iruya
See the full Iruya 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
Need travel inspiration? Check out our bucket list articles and be inspired.
The 10 most alternative cities in South America
Be amazed by Buenos Aires
The city of beautiful museums, cute streets, green parks, lots of good food, interesting local neighborhoods and impressive historical buildings.
Argentina in November: Where to Go for the Best Weather
Compare November weather in Mendoza, Buenos Aires, Cafayate, Bariloche and Ushuaia to find Argentina's warmest, sunniest and driest places.
Explore Patagonia
A tour through Patagonia brings you to the end of the world. That’s why Patagonia is a bucket list destination for many. We recommend to visit Patagonia from November to early March.