Arroyo Seco weather in August

In August, Arroyo Seco sees average daytime highs of 18°C and overnight lows near 7°C, with 54 mm of rain across 4.8 wet days and about 10.8 hours of daylight. It is the 10th-warmest and 10th-wettest month of the year here.

Highs climb over the month, from about 17°C in the first days to 19°C by the end. The sky is clear or mostly clear about 49% of the time in August, and the air most often feels dry.

Daylight stretches from about 10 h 18 min at the start of August to 11 h 12 min by month's end. Set against the rest of the year, August is Arroyo Seco's 4th-clearest and 4th-windiest month. For the whole year in context, see Arroyo Seco's year-round climate.

Daytime high
18°
10th warmest
Overnight low
3rd coldest
Rainfall
54 mm
4.8 wet days
Daylight
10 h 48 min
7:43 AM – 6:29 PM
Cloud cover
45%
4th clearest
Wind
13 km/h
4th windiest
Solar energy
3.63 kWh/m²
Travel score
6.8
out of 10

Arroyo Seco is town in Santa Fe Province, Argentina.

Density
146/km²
people per km²
Founded
1888

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 17°C in the first days to 19°C by the end.

A typical August day in Arroyo Seco reaches about 18°C in the afternoon and slips back to 7°C overnight — a 11°C spread between the day's warmth and the night's chill. On most days the high lands between 12°C and 24°C. Set against its neighbours, August runs about 3°C warmer than July and about 2°C cooler than September.

10°20°30°151015202531
Avg high (°C)Avg low (°C)
1176
2177
3177
4177
5177
6177
7177
8177
9177
10187
11187
12187
13187
14187
15187
16187
17187
18198
19198
20198
21198
22198
23198
24198
25198
26198
27198
28199
29199
30199
31209

Arroyo Seco 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
Jan30° / 19°105813.95.5
Feb29° / 18°1118.213.26.0
Mar27° / 17°1217.412.37.1
Apr23° / 13°1048.211.27.4
May19° / 10°675.910.36.8
Jun16° / 424.99.95.8
Jul16° / 395.1105.6
Aug18° / 544.810.86.8
Sep21° / 10°65611.87.2
Oct23° / 13°1139.812.87.1
Nov26° / 15°113813.77.1
Dec29° / 18°107914.25.9

Cloud cover in August

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 49% 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 39%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15842
25842
35842
45941
55941
66040
76040
86040
96139
106139
116238
126238
136337
146337
156436
166436
176436
186337
196337
206337
216337
226337
236238
246139
256040
266040
275941
285941
295941
305842
315842

Chance of precipitation in August

Any precipitation

Arroyo Seco gets around 54 mm of rain over 4.8 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 16% and peaks near 21% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
115
215
315
415
515
614
714
814
914
1015
1115
1215
1315
1415
1515
1615
1715
1815
1915
2016
2116
2216
2317
2417
2518
2618
2719
2819
2920
3020
3121

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 87% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
189830
289830
389830
490730
591720
691720
791720
891720
990730
1090730
1190730
1290730
1390730
1490730
1589740
1688840
1788840
1888840
1986950
2085951
21841051
22841051
23831151
24831151
25831151
26831151
27831151
28831151
29821251
30821251
31821251

Wind in August

Winds average 13 km/h in August.

Across August, daily wind ranges from about 12 km/h on the calmest days to 13 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202531
Wind speed (km/h)Feels
112light breeze
212light breeze
312light breeze
412light breeze
512light breeze
612light breeze
712light breeze
812light breeze
912light breeze
1012light breeze
1112light breeze
1212light breeze
1312light breeze
1412light breeze
1512light breeze
1612light breeze
1713light breeze
1813light breeze
1913light breeze
2013light breeze
2113light breeze
2213light breeze
2313light breeze
2413light breeze
2513light breeze
2613light breeze
2713light breeze
2813light breeze
2913light breeze
3013light breeze
3113light breeze

Sunrise & sunset in August

DaylightNight

Daylight runs from about 10 h 18 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 54 minutes over August. Sunrise moves from 7:58 AM to 7:25 AM, and sunset from 6:18 PM to 6:39 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
110.37:586:18
210.47:576:19
310.47:566:20
410.47:556:21
510.47:546:21
610.57:536:22
710.57:536:23
810.57:526:23
910.67:516:24
1010.67:506:25
1110.67:496:25
1210.67:486:26
1310.77:476:27
1410.77:456:28
1510.77:446:28
1610.87:436:29
1710.87:426:30
1810.87:416:30
1910.97:406:31
2010.97:396:32
2110.97:376:33
2211.07:366:33
2311.07:356:34
2411.07:346:35
2511.07:326:35
2611.17:316:36
2711.17:306:37
2811.17:296:37
2911.27:276:38
3011.27:266:39
3111.27:256:39

Solar energy in August

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in August, about 3.63 kWh/m².

For context, solar energy here swings from a low near 2.36 kWh/m² to a high of 7.33 kWh/m² in December across the year — August's 3.63 kWh/m² falls in the middle.

012345151015202531
Solar energy (kWh/m²)Level
13.1Moderate
23.1Moderate
33.2Moderate
43.2Moderate
53.2Moderate
63.3Moderate
73.3Moderate
83.4Moderate
93.4Moderate
103.4Moderate
113.5Moderate
123.5Moderate
133.5Moderate
143.6Moderate
153.6Moderate
163.6Moderate
173.7Moderate
183.7Moderate
193.7Moderate
203.8Moderate
213.8Moderate
223.8Moderate
233.9Moderate
243.9Moderate
253.9Moderate
263.9Moderate
274.0Moderate
284.0Moderate
294.0Bright
304.1Bright
314.1Bright
Planning a trip in August

Is August a good time to visit Arroyo Seco?

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

6.8
Sightseeing
6th-best month of the year
2.4
Beach & pool
10th-best month of the year

August is a reasonable time to visit Arroyo Seco for sightseeing.

What to pack for Arroyo Seco in August

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

In August, Arroyo Seco sees daytime highs around 18°C and nights near 7°C. Worth packing: a warm layer. About 5 days see rain.

a warm layer

UV index in Arroyo Seco 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 Arroyo Seco peaks around January 15 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 19 at about 3 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 11 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highModerateHighVery highExtremeJan 15UV 13Jun 19UV 3
UV index (midday)Level
Jan14Extreme
Feb12Extreme
Mar10Very high
Apr6High
May4Moderate
Jun3Moderate
Jul3Moderate
Aug4Moderate
Sep6High
Oct9Very high
Nov11Extreme
Dec12Extreme

Air quality in Arroyo Seco in August

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where August falls, not just the annual average.

Air quality in Arroyo Seco is worst in August — around 20 µg/m³ PM2.5 (moderate), about 3.0× the cleanest month (April, 7 µg/m³).

Modeled monthly averages (CAMS reanalysis, 2015–2024).

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodAug 2220 µg/m³Apr 157 µg/m³
PM2.5 (µg/m³)Level
Jan9Good
Feb8Good
Mar8Good
Apr7Good
May8Good
Jun10Good
Jul13Moderate
Aug20Moderate
Sep19Moderate
Oct10Good
Nov8Good
Dec8Good
Location & terrain

Where is Arroyo Seco?

Arroyo Seco sits at 33.2°S, 60.5°W, 31 m above sea level, in Argentina. The nearest listed city is Gobernador Gálvez, 18 km away.

Topography around Arroyo Seco

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

Within 3 km, the terrain around Arroyo Seco has only modest variations in elevation — a maximum elevation change of 29 m around an average of 22 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 59 m; within 80 km, only modest variations in elevation — a maximum elevation change of 101 m.

The land around Arroyo Seco is covered by cropland (46%) and grassland (23%) within 3 km, cropland (53%) and wetland (23%) within 16 km, and cropland (57%) and wetland (27%) within 80 km.

3 km
29 m
16 km
59 m
80 km
101 m
treesgrasslandcroplandartificial surfaceswaterwetland
August weather nearby: Gobernador Gálvez 18 km · Villa Constitución 19 km · Rosario 26 km · Pérez 29 km · San Nicolás de los Arroyos 34 km · Granadero Baigorria 38 km · Capitán Bermúdez 42 km · Ramallo 60 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 Arroyo Seco (-33.1536°, -60.5117°, elevation 31 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. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).