Santa Rosa in Winter
In winter (June, July and August), Santa Rosa sees average daytime highs around 15°C and overnight lows near 4°C, with 62 mm of rain over about 11 wet days across the season. It is the coldest season of the year and the driest season of the year.
Over the season highs climb from about 15°C in early June to 18°C by late August. The sky is clear or mostly clear about 41% of the time across winter, and the air most often feels dry.
Winter is Santa Rosa's weakest season of the year to visit on our travel score. For the whole year in context, see Santa Rosa's year-round climate.
- Avg daytime high
- 15°C
- coldest season of the year
- Avg overnight low
- 4°C
- Rainfall
- 62 mm
- 11 wet days
- Avg wind
- 11 km/h
- Travel score
- 5.2
- weakest season of the year
- Months
- Jun · Jul · Aug
Temperature in Santa Rosa in Winter
Over the season highs climb from about 15°C in early June to 18°C by late August.
A typical winter day in Santa Rosa reaches about 15°C and drops to 4°C overnight. The warmest of the three months is August, the coolest July.
How winter really feels in Santa Rosa
Once humidity and wind are folded in, winter brings about 0 days that feel above 32°C and 10 that feel at or below 0°C.
The story in winter is cold — wind chill drags the overnight "feels like" below the raw low.
Santa Rosa weather by month
How the three winter months (June, July and August) 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 | 30° / 18° | 82 | 9 | 14.2 | 5.6 |
| Feb | 28° / 17° | 81 | 7.9 | 13.4 | 6.4 |
| Mar | 26° / 15° | 86 | 8 | 12.3 | 7.4 |
| Apr | 22° / 11° | 67 | 6.3 | 11.1 | 7.4 |
| May | 17° / 7° | 30 | 5 | 10.1 | 6.2 |
| Jun | 14° / 4° | 17 | 3.3 | 9.5 | 4.8 |
| Jul | 14° / 3° | 19 | 3.7 | 9.8 | 4.6 |
| Aug | 16° / 5° | 27 | 4 | 10.6 | 6.1 |
| Sep | 19° / 7° | 48 | 5.8 | 11.8 | 6.9 |
| Oct | 22° / 11° | 83 | 9.6 | 12.9 | 6.9 |
| Nov | 26° / 14° | 74 | 8.1 | 14 | 7.4 |
| Dec | 29° / 16° | 85 | 8.5 | 14.5 | 6.3 |
Cloud cover in Winter
The sky is clear or mostly clear about 41% of the time across winter.
Chance of precipitation in Winter
Santa Rosa gets around 62 mm of rain over 11 wet days across winter. The line is the day-by-day chance of measurable precipitation.
Humidity in Winter
Most of winter feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.
Wind in Winter
Winds average 11 km/h across winter.
Sunrise & sunset in Winter
Daylight runs from about 9 h 42 min in early June to 11 h 06 min by late August. The lit band spans sunrise to sunset each day.
Solar energy in Winter
Average shortwave solar energy reaching the ground each day across winter, about 2.7 kWh/m².
Is winter a good time to visit Santa Rosa?
Our two travel scores rate winter for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal), averaged across the three months.
winter is a reasonable time to visit Santa Rosa for sightseeing.
What to pack for Santa Rosa in Winter
From winter's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In winter, Santa Rosa sees daytime highs around 15°C and nights near 4°C. Worth packing: a warm layer. About 11 days see rain.
UV index in Santa Rosa in Winter
Clear-sky midday UV across winter averages around 3. The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Santa Rosa peaks around January 1 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 21 at about 2 (moderate).
The index reaches 3 or more — the level where the WHO recommends sun protection — in 10 months of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 13 | 12 | 9 | 6 | 3 | 2 | 2 | 4 | 5 | 8 | 11 | 13 |
| Level | Extreme | Extreme | Very high | High | Moderate | Moderate | Moderate | Moderate | High | Very high | Extreme | Extreme |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 13 | Extreme |
| Feb | 12 | Extreme |
| Mar | 9 | Very high |
| Apr | 6 | High |
| May | 3 | Moderate |
| Jun | 2 | Moderate |
| Jul | 2 | Moderate |
| Aug | 4 | Moderate |
| Sep | 5 | High |
| Oct | 8 | Very high |
| Nov | 11 | Extreme |
| Dec | 13 | Extreme |
Where is Santa Rosa?
Santa Rosa sits at 36.6°S, 64.3°W, 163 m above sea level, in Argentina. The nearest listed city is Toay, 10 km away.
Topography around Santa Rosa
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Santa Rosa.
Within 3 km, the terrain around Santa Rosa has only modest variations in elevation — a maximum elevation change of 34 m around an average of 180 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 118 m; within 80 km, significant variations in elevation — a maximum elevation change of 274 m.
The land around Santa Rosa is covered by artificial surfaces (59%) within 3 km, cropland (65%) within 16 km, and cropland (59%) 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 Rosa (-36.6162°, -64.2899°, elevation 163 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.