Viedma weather in August

In August, Viedma sees average daytime highs of 15°C and overnight lows near 4°C, with 25 mm of rain across 4 wet days and about 10.4 hours of daylight. It is the 10th-warmest and 10th-wettest month of the year here.

Highs climb over the month, from about 13°C in the first days to 15°C by the end. The sky is clear or mostly clear about 40% of the time in August, and the air most often feels dry.

Daylight stretches from about 9 h 48 min at the start of August to 11 hours by month's end. Set against the rest of the year, August is Viedma's 10th-clearest and 6th-windiest month. For the whole year in context, see Viedma's year-round climate.

Daytime high
15°
10th warmest
Overnight low
3rd coldest
Rainfall
25 mm
4 wet days
Daylight
10 h 24 min
8:05 AM – 6:27 PM
Cloud cover
53%
10th clearest
Wind
15 km/h
6th windiest
Solar energy
2.97 kWh/m²
Travel score
5.0
out of 10

Viedma is capital of Río Negro Province, Argentina.

Density
5,499/km²
people per km²
Founded
1779

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in August

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 13°C in the first days to 15°C by the end.

A typical August day in Viedma reaches about 15°C in the afternoon and slips back to 4°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 10°C and 19°C. Set against its neighbours, August runs about 2°C warmer than July and about 2°C cooler than September.

10°20°151015202531
Avg high (°C)Avg low (°C)
1133
2133
3143
4144
5144
6144
7144
8144
9144
10144
11144
12144
13144
14144
15144
16154
17154
18154
19154
20155
21155
22155
23155
24155
25155
26155
27155
28155
29155
30155
31155

How August really feels in Viedma

Once humidity and wind are folded in, August averages 0 days that feel above 32°C and 7 that feel at or below 0°C — the comfort signal a plain temperature reading hides.

Days feeling ≥ 32°C
0
heat index over the day's high
Days feeling ≤ C
7
wind chill below the day's low

The story in August is cold — wind chill drags the overnight "feels like" below the raw low.

Viedma weather by month

How August compares with the rest of the year at a glance. August is the 10th-warmest and 10th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan28° / 16°365.514.67.0
Feb27° / 15°425.213.67.6
Mar25° / 13°435.612.37.9
Apr20° / 10°30410.97.4
May16° / 264.19.85.8
Jun13° / 234.99.14.0
Jul12° / 234.59.43.9
Aug15° / 25410.45.0
Sep17° / 265.411.76.0
Oct20° / 315.413.17.2
Nov24° / 11°355.714.37.8
Dec27° / 14°295.314.97.7

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 40% of the time in August.

Beyond those clear spells, partly cloudy skies cover about 12% of August, with mostly cloudy or overcast conditions the remaining 47%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15446
25446
35446
45446
55446
65446
75446
85347
95347
105347
115347
125347
135347
145347
155347
165347
175248
185248
195248
205248
215248
225248
235248
245248
255347
265248
275248
285347
295347
305347
315347

Chance of precipitation in August

Any precipitation

Viedma gets around 25 mm of rain over 4 wet days in August. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 13% and peaks near 16% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
111
211
311
411
511
611
711
811
911
1011
1111
1211
1311
1412
1512
1612
1713
1813
1914
2014
2114
2215
2315
2415
2515
2616
2716
2816
2916
3016
3116

Humidity in August

DryComfortableHumidMuggyOppressiveMiserable

Most of August feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, August lands in the dry band about 100% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)
1100
2100
3100
4100
5100
6100
7100
8100
9100
10100
11100
12100
13100
14100
15100
16100
17100
18100
19100
20100
21100
22100
23100
24100
25100
26100
27100
28100
29100
30100
31100

Wind in August

Winds average 15 km/h in August.

Across August, daily wind ranges from about 15 km/h on the calmest days to 16 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202531
Wind speed (km/h)Feels
115light breeze
215light breeze
315light breeze
415light breeze
515light breeze
615light breeze
715light breeze
816light breeze
916light breeze
1016light breeze
1116light breeze
1216light breeze
1316light breeze
1415light breeze
1515light breeze
1615light breeze
1715light breeze
1815light breeze
1915light breeze
2015light breeze
2115light breeze
2215light breeze
2315light breeze
2415light breeze
2515light breeze
2615light breeze
2715light breeze
2815light breeze
2915light breeze
3015light breeze
3115light breeze

Sunrise & sunset in August

DaylightNight

Daylight runs from about 9 h 48 min at the start of August to 11 hours by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 72 minutes over August. Sunrise moves from 8:24 AM to 7:42 AM, and sunset from 6:12 PM to 6:42 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
19.88:246:12
29.88:236:13
39.98:226:14
49.98:216:15
59.98:206:16
610.08:186:17
710.08:176:18
810.08:166:19
910.18:156:20
1010.18:136:21
1110.28:126:22
1210.28:116:23
1310.28:096:24
1410.38:086:25
1510.38:076:26
1610.48:056:27
1710.48:046:28
1810.48:026:29
1910.58:016:30
2010.57:596:31
2110.67:586:32
2210.67:566:33
2310.77:556:34
2410.77:536:35
2510.77:526:36
2610.87:506:37
2710.87:496:38
2810.97:476:39
2910.97:456:40
3011.07:446:41
3111.07:426:42

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 2.97 kWh/m².

For context, solar energy here swings from a low near 1.78 kWh/m² to a high of 8.11 kWh/m² in December across the year — August's 2.97 kWh/m² falls in the middle.

01234151015202531
Solar energy (kWh/m²)Level
12.5Moderate
22.5Moderate
32.5Moderate
42.6Moderate
52.6Moderate
62.6Moderate
72.7Moderate
82.7Moderate
92.7Moderate
102.8Moderate
112.8Moderate
122.8Moderate
132.9Moderate
142.9Moderate
152.9Moderate
163.0Moderate
173.0Moderate
183.0Moderate
193.1Moderate
203.1Moderate
213.2Moderate
223.2Moderate
233.3Moderate
243.3Moderate
253.3Moderate
263.4Moderate
273.4Moderate
283.5Moderate
293.5Moderate
303.6Moderate
313.6Moderate
Planning a trip in August

Is August a good time to visit Viedma?

Our two travel scores rate August for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

5.0
Sightseeing
10th-best month of the year
0.1
Beach & pool
10th-best month of the year

August is a reasonable time to visit Viedma for sightseeing.

What to pack for Viedma in August

From August's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In August, Viedma sees daytime highs around 15°C and nights near 4°C. Worth packing: a warm layer. About 4 days see rain.

a warm layer

Sea temperature near Viedma in August

The nearest coast averages about 11°C in August — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 36 km away) is warmest in February at about 20°C and coldest in August near 11°C.

The water stays below 20°C all year — cool enough that most swimmers want a wetsuit.

10°15°20°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshing
Sea temperature (°C)Comfort
Jan19Cool
Feb20Cool
Mar19Cool
Apr17Cool
May15Bracing
Jun12Bracing
Jul11Bracing
Aug11Bracing
Sep11Bracing
Oct12Bracing
Nov15Bracing
Dec17Cool

UV index in Viedma in August

LowModerateHighVery highExtreme

Clear-sky midday UV in August peaks around 3. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Viedma peaks around December 20 at about 12 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 20 at about 2 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 8 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeModerateLowModerateVery highExtremeDec 20UV 12Jun 20UV 2
UV index (midday)Level
Jan11Extreme
Feb11Extreme
Mar7Very high
Apr5Moderate
May3Moderate
Jun2Low
Jul2Low
Aug3Moderate
Sep4Moderate
Oct7High
Nov9Very high
Dec12Extreme
Location & terrain

Where is Viedma?

Viedma sits at 40.8°S, 63.0°W, 10 m above sea level, in Argentina. The nearest listed city is Carmen de Patagones, 2.0 km away.

Río ColoradoPunta AltaBahía BlancaPuerto MadrynRawsonTrelew

Topography around Viedma

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Viedma.

Within 3 km, the terrain around Viedma has only modest variations in elevation — a maximum elevation change of 43 m around an average of 9 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 49 m; within 80 km, only modest variations in elevation — a maximum elevation change of 108 m.

The land around Viedma is covered by artificial surfaces (44%) and grassland (35%) within 3 km, grassland (63%) and cropland (20%) within 16 km, and grassland (30%), water (30%) and shrubs (28%) within 80 km.

3 km
43 m
16 km
49 m
80 km
108 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
August weather nearby: Carmen de Patagones 2.0 km · San Antonio Oeste 164 km · Río Colorado 223 km · Punta Alta 229 km · Bahía Blanca 242 km · Puerto Madryn 275 km · Rawson 326 km · Trelew 331 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
Roman Catholic 63%none 19%Evangelical 15%Jehovah's Witness and Church of Jesus Christ 1%

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 Viedma (-40.8152°, -63.0004°, elevation 10 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. Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).