Arroyo Seco weather in October

In October, Arroyo Seco sees average daytime highs of 23°C and overnight lows near 13°C, with 113 mm of rain across 9.8 wet days and about 12.8 hours of daylight. It is the 6th-warmest and 3rd-wettest month of the year here.

Highs climb over the month, from about 22°C in the first days to 25°C by the end. The sky is clear or mostly clear about 42% of the time in October, and the air most often feels dry.

Daylight stretches from about 12 h 18 min at the start of October to 13 h 18 min by month's end. Set against the rest of the year, October is Arroyo Seco's 10th-clearest and 1st-windiest month. For the whole year in context, see Arroyo Seco's year-round climate.

Daytime high
23°
6th warmest
Overnight low
13°
6th coldest
Rainfall
113 mm
9.8 wet days
Daylight
12 h 48 min
6:22 AM – 7:12 PM
Cloud cover
52%
10th clearest
Wind
13 km/h
1st windiest
Solar energy
5.64 kWh/m²
Travel score
7.1
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 October

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 22°C in the first days to 25°C by the end.

A typical October day in Arroyo Seco reaches about 23°C in the afternoon and slips back to 13°C overnight — a 11°C spread between the day's warmth and the night's chill. On most days the high lands between 18°C and 29°C. Set against its neighbours, October runs about 3°C warmer than September and about 3°C cooler than November.

10°20°30°151015202531
Avg high (°C)Avg low (°C)
12211
22211
32211
42211
52211
62212
72212
82312
92312
102312
112312
122312
132312
142313
152313
162413
172413
182413
192413
202413
212413
222413
232413
242413
252413
262414
272514
282514
292514
302514
312514

Arroyo Seco weather by month

How October compares with the rest of the year at a glance. October is the 6th-warmest and 3rd-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 October

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 42% of the time in October.

Beyond those clear spells, partly cloudy skies cover about 13% of October, with mostly cloudy or overcast conditions the remaining 45%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15545
25545
35545
45446
55347
65347
75347
85347
95446
105446
115644
125644
135644
145644
155644
165644
175644
185644
195545
205545
215644
225644
235545
245644
255545
265545
275644
285545
295545
305644
315644

Chance of precipitation in October

Any precipitation

Arroyo Seco gets around 113 mm of rain over 9.8 wet days in October. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 30% and peaks near 32% on the wettest days.

0%10%20%30%40%151015202531
Rain chance (%)
125
226
327
428
528
629
729
830
930
1030
1130
1230
1330
1430
1530
1630
1730
1830
1931
2031
2131
2231
2332
2432
2532
2631
2731
2831
2930
3030
3130

Humidity in October

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, October lands in the dry band about 61% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
1741871
2731881
3721981
4711991
57019101
66919102
76720112
86620122
96620122
106520132
116520132
126420142
136221143
146221143
156121153
166022153
176022153
185922154
195922154
205823154
215823154
225623165
235723155
245624155
255624155
265425165
275425165
285326165
295326165
305127175
315127175

Wind in October

Winds average 13 km/h in October, the windiest month of the year.

Across October, daily wind ranges from about 13 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
113light breeze
213light breeze
313light breeze
413light breeze
513light breeze
613light breeze
713light breeze
813light breeze
913light breeze
1013light breeze
1113light breeze
1213light breeze
1313light breeze
1413light breeze
1513light breeze
1613light 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 October

DaylightNight

Daylight runs from about 12 h 18 min at the start of October to 13 h 18 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 60 minutes over October. Sunrise moves from 6:41 AM to 6:06 AM, and sunset from 7:01 PM to 7:25 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.36:417:01
212.46:407:01
312.46:397:02
412.46:377:03
512.56:367:04
612.56:357:04
712.56:337:05
812.66:327:06
912.66:317:07
1012.66:297:07
1112.76:287:08
1212.76:277:09
1312.76:267:10
1412.86:247:11
1512.86:237:11
1612.86:227:12
1712.96:217:13
1812.96:207:14
1912.96:187:15
2013.06:177:15
2113.06:167:16
2213.06:157:17
2313.16:147:18
2413.16:137:19
2513.16:127:20
2613.26:117:21
2713.26:107:21
2813.26:097:22
2913.36:087:23
3013.36:077:24
3113.36:067:25

Solar energy in October

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in October, about 5.64 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 — October's 5.64 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.2Bright
25.2Bright
35.2Bright
45.2Bright
55.3Bright
65.3Bright
75.3Bright
85.4Bright
95.4Bright
105.4Bright
115.5Bright
125.5Bright
135.6Bright
145.6Bright
155.7Bright
165.7Bright
175.7Bright
185.8Bright
195.8Bright
205.9Bright
215.9Bright
225.9Bright
236.0Bright
246.0Intense
256.1Intense
266.1Intense
276.2Intense
286.2Intense
296.3Intense
306.3Intense
316.3Intense
Planning a trip in October

Is October a good time to visit Arroyo Seco?

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

7.1
Sightseeing
3rd-best month of the year
5.7
Beach & pool
7th-best month of the year

October is one of the better times to visit Arroyo Seco for general sightseeing.

What to pack for Arroyo Seco in October

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

In October, Arroyo Seco sees daytime highs around 23°C and nights near 13°C. Worth packing: light clothes, rain gear and sun protection. About 10 days see rain.

light clothesrain gearsun protection

UV index in Arroyo Seco in October

LowModerateHighVery highExtreme

Clear-sky midday UV in October peaks around 9 (very high — sun protection essential). 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 October

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where October 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
October 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).