Las Heras in Summer
In summer (December, January and February), Las Heras sees average daytime highs around 24°C and overnight lows near 12°C, with 36 mm of rain over about 8 wet days across the season. It is the warmest season of the year and the driest season of the year.
Across summer, daytime highs hold fairly steady around 24°C. The sky is clear or mostly clear about 40% of the time across summer, and the air most often feels dry.
Summer is Las Heras's best season of the year to visit on our travel score. For the whole year in context, see Las Heras's year-round climate.
- Avg daytime high
- 24°C
- warmest season of the year
- Avg overnight low
- 12°C
- Rainfall
- 36 mm
- 8 wet days
- Avg wind
- 24 km/h
- Travel score
- 8.2
- best season of the year
- Months
- Dec · Jan · Feb
Temperature in Las Heras in Summer
Across summer, daytime highs hold fairly steady around 24°C.
A typical summer day in Las Heras reaches about 24°C and drops to 12°C overnight. The warmest of the three months is January, the coolest December.
How summer really feels in Las Heras
Once humidity and wind are folded in, summer brings about 0 days that feel above 32°C and 0 that feel at or below 0°C.
summer sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.
Las Heras weather by month
How the three summer months (December, January and February) compare with the rest of the year — the season's months are highlighted.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Snow days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|---|
| Jan | 25° / 12° | 8 | 2.5 | 0 | 15.2 | 8.3 |
| Feb | 24° / 12° | 14 | 2.6 | 0 | 14 | 8.3 |
| Mar | 21° / 10° | 17 | 3.1 | 0 | 12.4 | 7.7 |
| Apr | 16° / 6° | 17 | 3.9 | 0.1 | 10.7 | 6.1 |
| May | 11° / 3° | 24 | 4.8 | 1 | 9.2 | 3.4 |
| Jun | 7° / 0° | 27 | 5.8 | 2.5 | 8.4 | 1.2 |
| Jul | 7° / -0° | 18 | 4.5 | 2.3 | 8.8 | 1.2 |
| Aug | 10° / 1° | 20 | 5.1 | 1.6 | 10 | 2.7 |
| Sep | 14° / 4° | 19 | 4.7 | 0.8 | 11.6 | 4.6 |
| Oct | 18° / 6° | 15 | 3.8 | 0.3 | 13.3 | 6.7 |
| Nov | 21° / 9° | 16 | 2.9 | 0 | 14.8 | 7.6 |
| Dec | 23° / 11° | 13 | 3.2 | 0 | 15.6 | 8.1 |
Cloud cover in Summer
The sky is clear or mostly clear about 40% of the time across summer.
Chance of precipitation in Summer
Las Heras gets around 36 mm of rain over 8 wet days across summer. The line is the day-by-day chance of measurable precipitation.
Humidity in Summer
Most of summer feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Summer
Winds average 24 km/h across summer.
Sunrise & sunset in Summer
Daylight runs from about 15 h 24 min in early December to 13 h 18 min by late February. The lit band spans sunrise to sunset each day.
Solar energy in Summer
Average shortwave solar energy reaching the ground each day across summer, about 7.4 kWh/m².
Is summer a good time to visit Las Heras?
Our two travel scores rate summer for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
summer is one of the better times to visit Las Heras for general sightseeing. The water and warmth also suit a beach or pool day.
What to pack for Las Heras in Summer
From summer's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In summer, Las Heras sees daytime highs around 24°C and nights near 12°C. Pack sun protection. Worth having: light clothes and a windbreaker. About 8 days see rain.
UV index in Las Heras in Summer
Clear-sky midday UV across summer averages around 11 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Las Heras peaks around December 24 at about 11 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 19 at about 1 (low).
The index reaches 3 or more — the level where the WHO recommends sun protection — in 8 months of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 11 | 10 | 6 | 3 | 2 | 1 | 1 | 2 | 3 | 6 | 8 | 11 |
| Level | Extreme | Very high | High | Moderate | Low | Low | Low | Low | Moderate | High | Very high | Extreme |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 11 | Extreme |
| Feb | 10 | Very high |
| Mar | 6 | High |
| Apr | 3 | Moderate |
| May | 2 | Low |
| Jun | 1 | Low |
| Jul | 1 | Low |
| Aug | 2 | Low |
| Sep | 3 | Moderate |
| Oct | 6 | High |
| Nov | 8 | Very high |
| Dec | 11 | Extreme |
Where is Las Heras?
Las Heras sits at 46.5°S, 68.9°W, 324 m above sea level, in Argentina. The nearest listed city is Pico Truncado, 80 km away.
Topography around Las Heras
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Las Heras.
Within 3 km, the terrain around Las Heras has only modest variations in elevation — a maximum elevation change of 38 m around an average of 334 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 462 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,258 m.
The land around Las Heras is covered by grassland (44%), bare terrain (30%) and artificial surfaces (21%) within 3 km, grassland (65%) and bare terrain (30%) within 16 km, and grassland (69%) and bare terrain (23%) within 80 km.
Argentina travel facts
- Travel advisory
- Level 1
- Exercise Normal Precautions
- Power plugs
- Type C / I
- 220 V · 50 Hz
- Prices
- ≈ 46% of US
- price level, 2025
- GDP per capita
- $14,898
- 2025
- Happiness
- 6.4 / 10
- World Happiness, 2025
- Homicide rate
- 4.5
- per 100k, 2023
- Road deaths
- 14.1
- per 100k/yr, 2019
- Income group
- Upper middle
- World Bank
- English
- High
- EF EPI 575
- Religion
Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.
Data sources
Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Las Heras (-46.5413°, -68.9323°, elevation 324 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google.