Tres Arroyos in Winter
In winter (June, July and August), Tres Arroyos sees average daytime highs around 14°C and overnight lows near 4°C, with 118 mm of rain over about 17 wet days across the season. It is the coldest season of the year and the driest season of the year.
Across winter, daytime highs hold fairly steady around 14°C. The sky is clear or mostly clear about 35% of the time across winter, and the air most often feels dry.
Winter is Tres Arroyos's weakest season of the year to visit on our travel score. For the whole year in context, see Tres Arroyos's year-round climate.
- Avg daytime high
- 14°C
- coldest season of the year
- Avg overnight low
- 4°C
- Rainfall
- 118 mm
- 17 wet days
- Avg wind
- 16 km/h
- Travel score
- 4.3
- weakest season of the year
- Months
- Jun · Jul · Aug
Temperature in Tres Arroyos in Winter
Across winter, daytime highs hold fairly steady around 14°C.
A typical winter day in Tres Arroyos reaches about 14°C and drops to 4°C overnight. The warmest of the three months is August, the coolest July.
How winter really feels in Tres Arroyos
Once humidity and wind are folded in, winter brings about 0 days that feel above 32°C and 31 that feel at or below 0°C.
The story in winter is cold — wind chill drags the overnight "feels like" below the raw low.
Tres Arroyos 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 | 28° / 15° | 74 | 9.7 | 14.4 | 6.1 |
| Feb | 27° / 15° | 75 | 8.3 | 13.5 | 6.9 |
| Mar | 25° / 13° | 76 | 8.2 | 12.3 | 7.4 |
| Apr | 21° / 10° | 64 | 7.2 | 11 | 6.9 |
| May | 17° / 7° | 46 | 6.2 | 9.9 | 5.7 |
| Jun | 13° / 4° | 33 | 5.2 | 9.4 | 4.2 |
| Jul | 13° / 4° | 38 | 6.1 | 9.6 | 3.8 |
| Aug | 15° / 5° | 47 | 5.8 | 10.5 | 4.9 |
| Sep | 17° / 6° | 51 | 6.9 | 11.7 | 5.8 |
| Oct | 20° / 9° | 78 | 9.4 | 13 | 6.4 |
| Nov | 23° / 11° | 83 | 9.3 | 14.1 | 7.1 |
| Dec | 27° / 14° | 78 | 8.8 | 14.6 | 6.9 |
Cloud cover in Winter
The sky is clear or mostly clear about 35% of the time across winter.
Chance of precipitation in Winter
Tres Arroyos gets around 118 mm of rain over 17 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 16 km/h across winter.
Sunrise & sunset in Winter
Daylight runs from about 9 h 30 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 2.4 kWh/m².
Is winter a good time to visit Tres Arroyos?
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 Tres Arroyos for sightseeing.
What to pack for Tres Arroyos in Winter
From winter's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In winter, Tres Arroyos sees daytime highs around 14°C and nights near 4°C. Worth packing: a warm layer. About 17 days see rain.
Sea temperature near Tres Arroyos in Winter
The nearest coast averages about 11°C across winter — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea at the nearest coast (about 56 km away) is warmest in February at about 21°C and coldest in August near 10°C.
It's comfortable for a long swim from Jan 8 to Mar 21 — about 2.4 months when the water holds above 20°C.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 21 | 21 | 20 | 18 | 15 | 12 | 10 | 10 | 11 | 13 | 16 | 18 |
| Comfort | Refreshing | Refreshing | Refreshing | Cool | Cool | Bracing | Bracing | Bracing | Bracing | Bracing | Cool | Cool |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 21 | Refreshing |
| Feb | 21 | Refreshing |
| Mar | 20 | Refreshing |
| Apr | 18 | Cool |
| May | 15 | Cool |
| Jun | 12 | Bracing |
| Jul | 10 | Bracing |
| Aug | 10 | Bracing |
| Sep | 11 | Bracing |
| Oct | 13 | Bracing |
| Nov | 16 | Cool |
| Dec | 18 | Cool |
UV index in Tres Arroyos in Winter
Clear-sky midday UV across winter averages around 2. The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Tres Arroyos peaks around December 20 at about 12 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 21 at about 2 (low).
The index reaches 3 or more — the level where the WHO recommends sun protection — in 9 months of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 12 | 12 | 8 | 6 | 3 | 2 | 2 | 3 | 5 | 7 | 10 | 13 |
| Level | Extreme | Extreme | Very high | High | Moderate | Low | Moderate | Moderate | Moderate | Very high | Very high | Extreme |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 12 | Extreme |
| Feb | 12 | Extreme |
| Mar | 8 | Very high |
| Apr | 6 | High |
| May | 3 | Moderate |
| Jun | 2 | Low |
| Jul | 2 | Moderate |
| Aug | 3 | Moderate |
| Sep | 5 | Moderate |
| Oct | 7 | Very high |
| Nov | 10 | Very high |
| Dec | 13 | Extreme |
Where is Tres Arroyos?
Tres Arroyos sits at 38.4°S, 60.3°W, 100 m above sea level, in Argentina. The nearest listed city is Benito Juárez, 89 km away.
Topography around Tres Arroyos
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Tres Arroyos.
Within 3 km, the terrain around Tres Arroyos has only modest variations in elevation — a maximum elevation change of 21 m around an average of 109 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 93 m; within 80 km, significant variations in elevation — a maximum elevation change of 268 m.
The land around Tres Arroyos is covered by artificial surfaces (43%) and grassland (41%) within 3 km, cropland (81%) within 16 km, and cropland (61%) and grassland (28%) 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 Tres Arroyos (-38.3769°, -60.2756°, elevation 100 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.