Las Heras in Fall
In fall (March, April and May), Las Heras sees average daytime highs around 16°C and overnight lows near 6°C, with 58 mm of precipitation over about 12 wet days across the season. It is the 3rd-warmest season and the 2nd-wettest season.
Over the season highs ease from about 23°C in early March to 9°C by late May. The sky is clear or mostly clear about 45% of the time across fall, and the air most often feels dry.
Fall is Las Heras's 3rd-best season to visit on our travel score. For the whole year in context, see Las Heras's year-round climate.
- Avg daytime high
- 16°C
- 3rd-warmest season
- Avg overnight low
- 6°C
- Precipitation
- 58 mm
- 12 wet days
- Avg wind
- 20 km/h
- Travel score
- 5.7
- 3rd-best season
- Months
- Mar · Apr · May
Temperature in Las Heras in Fall
Over the season highs ease from about 23°C in early March to 9°C by late May.
A typical fall day in Las Heras reaches about 16°C and drops to 6°C overnight. The warmest of the three months is March, the coolest May.
How fall really feels in Las Heras
Once humidity and wind are folded in, fall brings about 0 days that feel above 32°C and 21 that feel at or below 0°C.
The story in fall is cold — wind chill drags the overnight "feels like" below the raw low.
Las Heras weather by month
How the three fall months (March, April and May) 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 Fall
The sky is clear or mostly clear about 45% of the time across fall.
Chance of precipitation in Fall
Las Heras gets around 58 mm of rain and snow over 12 wet days across fall. The line is the day-by-day chance of measurable precipitation.
Humidity in Fall
Most of fall feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Fall
Winds average 20 km/h across fall.
Sunrise & sunset in Fall
Daylight runs from about 13 h 12 min in early March to 8 h 42 min by late May. The lit band spans sunrise to sunset each day.
Solar energy in Fall
Average shortwave solar energy reaching the ground each day across fall, about 3.2 kWh/m².
Is fall a good time to visit Las Heras?
Our two travel scores rate fall for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
fall is a reasonable time to visit Las Heras for sightseeing.
What to pack for Las Heras in Fall
From fall's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In fall, Las Heras sees daytime highs around 16°C and nights near 6°C. Pack a warm layer. Worth having: sun protection and a windbreaker. About 12 days see rain.
UV index in Las Heras in Fall
Clear-sky midday UV across fall averages around 4 — enough to warrant sun protection. 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.