Tafí Viejo in Summer
In summer (December, January and February), Tafí Viejo sees average daytime highs around 27°C and overnight lows near 18°C, with 837 mm of rain over about 56 wet days across the season. It is the warmest season of the year and the wettest season of the year.
Across summer, daytime highs hold fairly steady around 27°C. The sky is clear or mostly clear about 17% of the time across summer, and the air most often feels muggy.
Summer is Tafí Viejo's weakest season of the year to visit on our travel score. For the whole year in context, see Tafí Viejo's year-round climate.
- Avg daytime high
- 27°C
- warmest season of the year
- Avg overnight low
- 18°C
- Rainfall
- 837 mm
- 56 wet days
- Avg wind
- 5 km/h
- Travel score
- 4.9
- weakest season of the year
- Months
- Dec · Jan · Feb
Temperature in Tafí Viejo in Summer
Across summer, daytime highs hold fairly steady around 27°C.
A typical summer day in Tafí Viejo reaches about 27°C and drops to 18°C overnight. The warmest of the three months is December, the coolest December.
Tafí Viejo 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 | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 28° / 19° | 323 | 19.8 | 13.5 | 4.8 |
| Feb | 27° / 18° | 265 | 18.2 | 12.9 | 5.0 |
| Mar | 25° / 17° | 270 | 19.8 | 12.2 | 5.2 |
| Apr | 22° / 14° | 189 | 15.5 | 11.4 | 5.8 |
| May | 19° / 11° | 133 | 13.5 | 10.7 | 5.8 |
| Jun | 17° / 7° | 74 | 9.8 | 10.4 | 5.8 |
| Jul | 18° / 6° | 50 | 7.6 | 10.5 | 6.4 |
| Aug | 21° / 8° | 46 | 6.8 | 11.1 | 7.4 |
| Sep | 23° / 11° | 81 | 8.7 | 11.8 | 7.4 |
| Oct | 25° / 14° | 169 | 14.5 | 12.6 | 6.3 |
| Nov | 27° / 16° | 206 | 15.6 | 13.3 | 5.7 |
| Dec | 28° / 18° | 249 | 18 | 13.6 | 5.0 |
Cloud cover in Summer
The sky is clear or mostly clear about 17% of the time across summer.
Chance of precipitation in Summer
Tafí Viejo gets around 837 mm of rain over 56 wet days across summer. The line is the day-by-day chance of measurable precipitation.
Humidity in Summer
Most of summer feels muggy — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Summer
Winds average 5 km/h across summer.
Sunrise & sunset in Summer
Daylight runs from about 13 h 36 min in early December to 12 h 36 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 5.7 kWh/m².
Hazard calendar for Tafí Viejo
In summer, Tafí Viejo overlaps its rainy season season. The full year is below, with each hazard's peak months called out.
Tafí Viejo's rainy season runs October–April, when most of the year's rain falls.
Is summer a good time to visit Tafí Viejo?
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 a reasonable time to visit Tafí Viejo for sightseeing.
What to pack for Tafí Viejo in Summer
From summer's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In summer, Tafí Viejo sees daytime highs around 27°C and nights near 18°C. Pack light clothes, rain gear and sun protection. About 56 days see rain.
UV index in Tafí Viejo in Summer
Clear-sky midday UV across summer averages around 14 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Tafí Viejo peaks around January 16 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 10 at about 4 (moderate).
The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 15 | 13 | 12 | 7 | 6 | 4 | 4 | 6 | 8 | 12 | 13 | 13 |
| Level | Extreme | Extreme | Extreme | Very high | High | Moderate | Moderate | High | Very high | Extreme | Extreme | Extreme |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 15 | Extreme |
| Feb | 13 | Extreme |
| Mar | 12 | Extreme |
| Apr | 7 | Very high |
| May | 6 | High |
| Jun | 4 | Moderate |
| Jul | 4 | Moderate |
| Aug | 6 | High |
| Sep | 8 | Very high |
| Oct | 12 | Extreme |
| Nov | 13 | Extreme |
| Dec | 13 | Extreme |
Air quality in Tafí Viejo in Summer
Average fine-particle pollution (PM2.5) through the year — so you can see where summer falls, not just the annual average.
Air quality in Tafí Viejo is worst in August — around 37 µg/m³ PM2.5 (poor), about 3.8× the cleanest month (May, 10 µg/m³).
Modeled monthly averages (CAMS reanalysis, 2015–2024).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 12 | 12 | 11 | 10 | 10 | 12 | 22 | 37 | 36 | 22 | 13 | 11 |
| Level | Moderate | Moderate | Good | Good | Good | Good | Moderate | Poor | Poor | Moderate | Moderate | Good |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 12 | Moderate |
| Feb | 12 | Moderate |
| Mar | 11 | Good |
| Apr | 10 | Good |
| May | 10 | Good |
| Jun | 12 | Good |
| Jul | 22 | Moderate |
| Aug | 37 | Poor |
| Sep | 36 | Poor |
| Oct | 22 | Moderate |
| Nov | 13 | Moderate |
| Dec | 11 | Good |
Where is Tafí Viejo?
Tafí Viejo sits at 26.7°S, 65.3°W, 617 m above sea level, in Argentina. The nearest listed city is Yerba Buena, 9.0 km away.
Topography around Tafí Viejo
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Tafí Viejo.
Within 3 km, the terrain around Tafí Viejo has significant variations in elevation — a maximum elevation change of 322 m around an average of 637 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,513 m; within 80 km, extreme variations in elevation — a maximum elevation change of 4,701 m.
The land around Tafí Viejo is covered by trees (49%), grassland (23%) and artificial surfaces (21%) within 3 km, trees (61%) within 16 km, and trees (38%) and cropland (36%) 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 Tafí Viejo (-26.7333°, -65.2615°, elevation 617 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.