Chascomús weather in August

In August, Chascomús sees average daytime highs of 16°C and overnight lows near 7°C, with 65 mm of rain across 6.4 wet days and about 10.7 hours of daylight. It is the 10th-warmest and 10th-wettest month of the year here.

Highs climb over the month, from about 15°C in the first days to 17°C by the end. The sky is clear or mostly clear about 36% of the time in August, and the air most often feels dry.

Daylight stretches from about 10 h 12 min at the start of August to 11 h 12 min by month's end. Set against the rest of the year, August is Chascomús's 7th-clearest and 5th-windiest month. For the whole year in context, see Chascomús's year-round climate.

Daytime high
16°
10th warmest
Overnight low
3rd coldest
Rainfall
65 mm
6.4 wet days
Daylight
10 h 36 min
7:37 AM – 6:15 PM
Cloud cover
56%
7th clearest
Wind
14 km/h
5th windiest
Solar energy
3.21 kWh/m²
Travel score
5.5
out of 10

Chascomús is city in Argentina.

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 15°C in the first days to 17°C by the end.

A typical August day in Chascomús reaches about 16°C in the afternoon and slips back to 7°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 11°C and 21°C. Set against its neighbours, August runs about 2°C warmer than July and about 2°C cooler than September.

10°15°20°25°151015202531
Avg high (°C)Avg low (°C)
1156
2156
3156
4156
5156
6156
7156
8156
9156
10166
11166
12167
13167
14167
15167
16167
17167
18167
19167
20177
21177
22177
23177
24177
25178
26178
27178
28178
29178
30178
31178

Chascomús 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° / 18°888.114.16.3
Feb27° / 17°918.213.36.8
Mar25° / 16°857.712.37.4
Apr22° / 12°877.311.17.2
May18° / 57610.16.3
Jun15° / 655.79.64.9
Jul14° / 616.39.84.4
Aug16° / 656.410.75.5
Sep18° / 72711.86.2
Oct21° / 11°1019.112.96.6
Nov24° / 14°888.313.97.2
Dec27° / 16°818.714.46.9

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 36% of the time in August.

Beyond those clear spells, partly cloudy skies cover about 13% of August, with mostly cloudy or overcast conditions the remaining 51%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14456
24555
34654
44654
54654
64852
74852
84951
95050
105050
115050
125149
135149
145149
155149
165149
175149
185149
195050
205050
215050
225050
234951
244852
254852
264753
274852
284852
294654
304753
314654

Chance of precipitation in August

Any precipitation

Chascomús gets around 65 mm of rain over 6.4 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 21% and peaks near 23% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
119
219
318
419
519
619
719
819
920
1020
1120
1220
1321
1421
1521
1621
1721
1822
1922
2022
2122
2222
2321
2422
2522
2622
2722
2822
2923
3023
3123

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 90% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)
19451
29451
39451
49451
59451
69451
79352
89352
99352
109352
119262
129262
139262
149172
159172
169082
178983
188983
198893
208893
218893
228893
238893
248893
258893
268893
278893
288893
298893
308893
318893

Wind in August

Winds average 14 km/h in August.

Across August, daily wind ranges from about 13 km/h on the calmest days to 14 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202531
Wind speed (km/h)Feels
113light breeze
213light breeze
313light breeze
413light breeze
513light breeze
613light breeze
713light breeze
813light breeze
913light breeze
1013light breeze
1113light breeze
1213light breeze
1314light breeze
1414light breeze
1514light breeze
1614light breeze
1714light breeze
1814light breeze
1914light breeze
2014light breeze
2114light breeze
2214light breeze
2314light breeze
2414light breeze
2514light breeze
2614light breeze
2714light breeze
2814light breeze
2914light breeze
3014light breeze
3114light breeze

Sunrise & sunset in August

DaylightNight

Daylight runs from about 10 h 12 min at the start of August to 11 h 12 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 60 minutes over August. Sunrise moves from 7:53 AM to 7:17 AM, and sunset from 6:04 PM to 6:27 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
110.27:536:04
210.27:526:04
310.27:516:05
410.37:506:06
510.37:496:07
610.37:486:08
710.47:476:08
810.47:466:09
910.47:456:10
1010.47:446:11
1110.57:436:11
1210.57:416:12
1310.57:406:13
1410.67:396:14
1510.67:386:15
1610.67:376:15
1710.77:366:16
1810.77:346:17
1910.77:336:18
2010.87:326:19
2110.87:316:19
2210.97:296:20
2310.97:286:21
2410.97:276:22
2511.07:256:23
2611.07:246:23
2711.07:226:24
2811.17:216:25
2911.17:206:26
3011.17:186:27
3111.27:176:27

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 3.21 kWh/m².

For context, solar energy here swings from a low near 2.16 kWh/m² to a high of 7.37 kWh/m² in December across the year — August's 3.21 kWh/m² falls in the middle.

01234151015202531
Solar energy (kWh/m²)Level
12.7Moderate
22.8Moderate
32.8Moderate
42.8Moderate
52.9Moderate
62.9Moderate
72.9Moderate
83.0Moderate
93.0Moderate
103.0Moderate
113.1Moderate
123.1Moderate
133.1Moderate
143.2Moderate
153.2Moderate
163.2Moderate
173.3Moderate
183.3Moderate
193.3Moderate
203.3Moderate
213.4Moderate
223.4Moderate
233.4Moderate
243.4Moderate
253.5Moderate
263.5Moderate
273.5Moderate
283.6Moderate
293.6Moderate
303.6Moderate
313.7Moderate
Planning a trip in August

Is August a good time to visit Chascomús?

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

5.5
Sightseeing
10th-best month of the year
0.7
Beach & pool
10th-best month of the year

August is a reasonable time to visit Chascomús for sightseeing.

What to pack for Chascomús in August

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

In August, Chascomús sees daytime highs around 16°C and nights near 7°C. Worth packing: a warm layer. About 6 days see rain.

a warm layer

Sea temperature near Chascomús 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 66 km away) is warmest in January at about 23°C and coldest in July near 11°C.

It's comfortable for a long swim from Nov 28 to Apr 4 — about 4.2 months when the water holds above 20°C.

10°15°20°25°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmcomfortable to swim
Sea temperature (°C)Comfort
Jan23Refreshing
Feb23Refreshing
Mar22Refreshing
Apr19Cool
May16Cool
Jun13Bracing
Jul11Bracing
Aug11Bracing
Sep13Bracing
Oct16Cool
Nov19Cool
Dec22Refreshing

UV index in Chascomús in August

LowModerateHighVery highExtreme

Clear-sky midday UV in August peaks around 4 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Chascomús peaks around January 14 at about 12 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 20 at about 2 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 10 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highModerateHighVery highExtremeJan 14UV 12Jun 20UV 2
UV index (midday)Level
Jan12Extreme
Feb11Extreme
Mar10Very high
Apr6High
May3Moderate
Jun2Moderate
Jul3Moderate
Aug4Moderate
Sep6High
Oct7Very high
Nov11Extreme
Dec12Extreme
Location & terrain

Where is Chascomús?

Chascomús sits at 35.6°S, 58.0°W, 19 m above sea level, in Argentina. The nearest listed city is General Belgrano, 48 km away.

Topography around Chascomús

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

Within 3 km, the terrain around Chascomús has only modest variations in elevation — a maximum elevation change of 23 m around an average of 9 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 33 m; within 80 km, only modest variations in elevation — a maximum elevation change of 56 m.

The land around Chascomús is covered by water (46%) and artificial surfaces (23%) within 3 km, grassland (49%) and cropland (36%) within 16 km, and grassland (58%) and cropland (31%) within 80 km.

3 km
23 m
16 km
33 m
80 km
56 m
treesgrasslandcroplandartificial surfaceswaterwetland
August weather nearby: General Belgrano 48 km · Coronel Brandsen 50 km · Magdalena 71 km · San Vicente 72 km · La Plata 73 km · San Miguel del Monte 74 km · Berisso 79 km · Ensenada 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
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 Chascomús (-35.5768°, -58.0121°, elevation 19 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).