Las Heras Department Travel Guide – Attractions & Tours

Featured Lists

Departamento Las Heras Essentials

Departamento Las Heras encompasses the highest peaks of the Andes, including the 6,961-meter Mount Aconcagua. The region features the natural sulfur-encrusted arch of Puente del Inca and the turquoise reservoir of Potrerillos Dam. Historically significant as the staging ground for General San Martín’s liberation campaign, it preserves 18th-century adobe vaults at Uspallata and ancient Inca road ruins at Tambillitos. The high-altitude border crossing at Christ the Redeemer marks the boundary between Argentina and Chile.

10 places

Mariordo / CC BY 3.0

High Andes Expeditions

This expedition list centers on the Aconcagua Provincial Park, home to the 6,961-meter Cerro Aconcagua, the highest peak in the Southern and Western Hemispheres. The selection covers technical features like the Polish Glacier and surrounding peaks including Cerro Blanco and Cerro del Tambillo. Supporting the high-altitude terrain are various alpine huts and lodges, such as Pueblo del Río and Cabañas Los Horneros, which provide essential services for climbers and trekkers navigating the Central Andes.

12 places

Alpertron / Public domain

Historical Heritage Sites

This collection features significant archaeological sites along the Qhapaq Ñan, the ancient Andean road system recognized as a UNESCO World Heritage site. Located in the high Andes of Mendoza, these locations include "tambos"—Inca waystations and storage facilities—such as Tambo de Ranchillos and Tambillos. The list also highlights the historic Christ the Redeemer of the Andes monument, situated at 3,832 meters on the border between Argentina and Chile, alongside preserved sections of the original stone-paved mountain trails.

6 places

Las Heras Department — Map

Climate & when to visit

Select a month

Typical weather in January

Great

13°–33° · varies by region
10° at night
3–8 rainy days · varies by region
24 sunny days
12 hours of sunshine per day
Dry air
Calm winds
UV index 14 · extreme

Typical weather in February

Great

13°–31° · varies by region
10° at night
3–7 rainy days · varies by region
23 sunny days
11 hours of sunshine per day
Dry air
Calm winds
UV index 12 · extreme

Typical weather in March

Great

11°–29° · varies by region
8° at night
3–6 rainy days · varies by region
26 sunny days
11 hours of sunshine per day
Dry air
Calm winds
UV index 10 · very high

Typical weather in April

Good

6°–25° · varies by region
5° at night
2–3 rainy days · varies by region
24 sunny days
9 hours of sunshine per day
Dry air
Calm winds
UV index 7 · high

Typical weather in May

Fair

1°–20° · varies by region
2° at night
3–5 rainy days · varies by region
18 sunny days
7 hours of sunshine per day
Dry air
Calm winds
UV index 4 · moderate

Typical weather in June

Poor

-3°–17° · varies by region
-2° at night
3–6 rainy days · varies by region
13 sunny days
6 hours of sunshine per day
Dry air
Light breeze
UV index 3 · moderate

Typical weather in July

Poor

-4°–17° · varies by region
-3° at night
2–4 rainy days · varies by region
15 sunny days
7 hours of sunshine per day
Dry air
Light breeze
UV index 3 · moderate

Typical weather in August

Poor

-2°–19° · varies by region
-1° at night
2–4 rainy days · varies by region
17 sunny days
7 hours of sunshine per day
Dry air
Light breeze
UV index 5 · moderate

Typical weather in September

Fair

0°–22° · varies by region
1° at night
2–3 rainy days · varies by region
18 sunny days
9 hours of sunshine per day
Dry air
Light breeze
UV index 7 · high

Typical weather in October

Good

4°–26° · varies by region
4° at night
2–3 rainy days · varies by region
22 sunny days
10 hours of sunshine per day
Dry air
Light breeze
UV index 9 · very high

Typical weather in November

Great

7°–29° · varies by region
6° at night
2–5 rainy days · varies by region
24 sunny days
11 hours of sunshine per day
Dry air
Light breeze
UV index 12 · extreme

Typical weather in December

Great

10°–32° · varies by region
8° at night
2–5 rainy days · varies by region
25 sunny days
12 hours of sunshine per day
Dry air
Light breeze
UV index 13 · extreme

This destination spans several climate zones, so these figures are a range across the region rather than exact values. Climate data: NASA POWER (MERRA-2) · 1996–2025