La Rioja in Summer
In summer (December, January and February), La Rioja sees average daytime highs around 32°C and overnight lows near 21°C, with 263 mm of rain over about 30 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 32°C. The sky is clear or mostly clear about 45% of the time across summer, and the air most often feels humid.
Summer is La Rioja's weakest season of the year to visit on our travel score. For the whole year in context, see La Rioja's year-round climate.
- Avg daytime high
- 32°C
- warmest season of the year
- Avg overnight low
- 21°C
- Rainfall
- 263 mm
- 30 wet days
- Avg wind
- 8 km/h
- Travel score
- 4.3
- weakest season of the year
- Months
- Dec · Jan · Feb
Temperature in La Rioja in Summer
Across summer, daytime highs hold fairly steady around 32°C.
A typical summer day in La Rioja reaches about 32°C and drops to 21°C overnight. The warmest of the three months is December, the coolest February.
How summer really feels in La Rioja
Once humidity and wind are folded in, summer brings about 47 days that feel above 32°C and 0 that feel at or below 0°C.
The story in summer is heat — humidity pushes the afternoon "feels like" well above the raw temperature.
La Rioja 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 | 32° / 22° | 102 | 11.2 | 13.7 | 3.9 |
| Feb | 31° / 21° | 76 | 9.6 | 13.1 | 4.8 |
| Mar | 28° / 19° | 78 | 9.8 | 12.2 | 6.1 |
| Apr | 24° / 15° | 47 | 7.9 | 11.3 | 7.4 |
| May | 20° / 11° | 29 | 5.5 | 10.5 | 7.1 |
| Jun | 17° / 7° | 15 | 3.4 | 10.2 | 6.5 |
| Jul | 17° / 6° | 10 | 2.2 | 10.3 | 7.0 |
| Aug | 21° / 8° | 10 | 2.1 | 10.9 | 8.3 |
| Sep | 24° / 12° | 24 | 3.4 | 11.8 | 8.5 |
| Oct | 28° / 16° | 48 | 6 | 12.7 | 7.1 |
| Nov | 30° / 19° | 61 | 7.7 | 13.5 | 5.3 |
| Dec | 32° / 21° | 85 | 9.3 | 13.8 | 4.2 |
Cloud cover in Summer
The sky is clear or mostly clear about 45% of the time across summer.
Chance of precipitation in Summer
La Rioja gets around 263 mm of rain over 30 wet days across summer. The line is the day-by-day chance of measurable precipitation.
Humidity in Summer
Most of summer feels humid — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Summer
Winds average 8 km/h across summer.
Sunrise & sunset in Summer
Daylight runs from about 13 h 42 min in early December to 12 h 42 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 6.3 kWh/m².
Hazard calendar for La Rioja
In summer, La Rioja overlaps its rainy season season. The full year is below, with each hazard's peak months called out.
La Rioja's rainy season runs October–April, when most of the year's rain falls.
Is summer a good time to visit La Rioja?
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 La Rioja for sightseeing. The water and warmth also suit a beach or pool day.
What to pack for La Rioja in Summer
From summer's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In summer, La Rioja sees daytime highs around 32°C and nights near 21°C. Pack light clothes and sun protection. Worth having: rain gear. About 30 days see rain.
UV index in La Rioja 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 La Rioja peaks around January 20 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 22 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) | 14 | 14 | 12 | 7 | 5 | 4 | 4 | 5 | 7 | 11 | 13 | 13 |
| Level | Extreme | Extreme | Extreme | High | Moderate | Moderate | Moderate | Moderate | Very high | Extreme | Extreme | Extreme |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 14 | Extreme |
| Feb | 14 | Extreme |
| Mar | 12 | Extreme |
| Apr | 7 | High |
| May | 5 | Moderate |
| Jun | 4 | Moderate |
| Jul | 4 | Moderate |
| Aug | 5 | Moderate |
| Sep | 7 | Very high |
| Oct | 11 | Extreme |
| Nov | 13 | Extreme |
| Dec | 13 | Extreme |
Where is La Rioja?
La Rioja sits at 29.4°S, 66.9°W, 493 m above sea level, in Argentina. The nearest listed city is Chilecito, 68 km away.
Topography around La Rioja
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of La Rioja.
Within 3 km, the terrain around La Rioja has only modest variations in elevation — a maximum elevation change of 141 m around an average of 516 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,895 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,858 m.
The land around La Rioja is covered by artificial surfaces (70%) within 3 km, shrubs (58%) and trees (24%) within 16 km, and shrubs (76%) 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 La Rioja (-29.4133°, -66.8564°, elevation 493 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.