Santa María in Summer
In summer (December, January and February), Santa María sees average daytime highs around 22°C and overnight lows near 12°C, with 143 mm of rain over about 28 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 22°C. The sky is clear or mostly clear about 33% of the time across summer, and the air most often feels dry.
Summer is Santa María's weakest season of the year to visit on our travel score. For the whole year in context, see Santa María's year-round climate.
- Avg daytime high
- 22°C
- warmest season of the year
- Avg overnight low
- 12°C
- Rainfall
- 143 mm
- 28 wet days
- Avg wind
- 6 km/h
- Travel score
- 6.9
- weakest season of the year
- Months
- Dec · Jan · Feb
Temperature in Santa María in Summer
Across summer, daytime highs hold fairly steady around 22°C.
A typical summer day in Santa María reaches about 22°C and drops to 12°C overnight. The warmest of the three months is December, the coolest December.
How summer really feels in Santa María
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.
Santa María 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 | 23° / 12° | 68 | 11.6 | 13.5 | 6.5 |
| Feb | 22° / 11° | 44 | 8.8 | 12.9 | 6.8 |
| Mar | 22° / 10° | 30 | 6.3 | 12.2 | 7.5 |
| Apr | 21° / 7° | 11 | 2.5 | 11.4 | 8.1 |
| May | 19° / 4° | 4 | 1 | 10.7 | 7.9 |
| Jun | 17° / 1° | 2 | 0.6 | 10.4 | 7.5 |
| Jul | 17° / -0° | 2 | 0.6 | 10.5 | 7.2 |
| Aug | 18° / 1° | 3 | 1 | 11.1 | 8.0 |
| Sep | 20° / 4° | 5 | 1.3 | 11.8 | 8.2 |
| Oct | 21° / 8° | 11 | 2.8 | 12.6 | 8.1 |
| Nov | 22° / 10° | 18 | 4.5 | 13.3 | 7.8 |
| Dec | 23° / 11° | 32 | 7.4 | 13.6 | 7.4 |
Cloud cover in Summer
The sky is clear or mostly clear about 33% of the time across summer.
Chance of precipitation in Summer
Santa María gets around 143 mm of rain over 28 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 6 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 6.6 kWh/m².
Is summer a good time to visit Santa María?
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 Santa María for sightseeing.
What to pack for Santa María in Summer
From summer's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In summer, Santa María sees daytime highs around 22°C and nights near 12°C. Pack sun protection. Worth having: light clothes and rain gear. About 28 days see rain.
UV index in Santa María in Summer
Clear-sky midday UV across summer averages around 17 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Santa María peaks around January 17 at about 17 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 10 at about 5 (high).
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) | 17 | 16 | 14 | 9 | 7 | 6 | 5 | 8 | 11 | 15 | 15 | 16 |
| Level | Extreme | Extreme | Extreme | Very high | High | High | High | Very high | Extreme | Extreme | Extreme | Extreme |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 17 | Extreme |
| Feb | 16 | Extreme |
| Mar | 14 | Extreme |
| Apr | 9 | Very high |
| May | 7 | High |
| Jun | 6 | High |
| Jul | 5 | High |
| Aug | 8 | Very high |
| Sep | 11 | Extreme |
| Oct | 15 | Extreme |
| Nov | 15 | Extreme |
| Dec | 16 | Extreme |
Where is Santa María?
Santa María sits at 26.7°S, 66.0°W, 1,877 m above sea level, in Argentina. The nearest listed city is Cafayate, 69 km away.
Topography around Santa María
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Santa María.
Within 3 km, the terrain around Santa María has only modest variations in elevation — a maximum elevation change of 142 m around an average of 1,895 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,775 m; within 80 km, extreme variations in elevation — a maximum elevation change of 5,170 m.
The land around Santa María is covered by bare terrain (46%) within 3 km, grassland (33%), bare terrain (33%) and shrubs (30%) within 16 km, and grassland (39%), bare terrain (30%) and trees (22%) 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 Santa María (-26.6946°, -66.0481°, elevation 1,877 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.