Gualeguaychú weather in October

In October, Gualeguaychú sees average daytime highs of 23°C and overnight lows near 13°C, with 124 mm of rain across 9.8 wet days and about 12.8 hours of daylight. It is the 7th-warmest and 3rd-wettest month of the year here.

Highs climb over the month, from about 22°C in the first days to 24°C by the end. The sky is clear or mostly clear about 39% 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 Gualeguaychú's 9th-clearest and 2nd-windiest month. For the whole year in context, see Gualeguaychú's year-round climate.

Daytime high
23°
7th warmest
Overnight low
13°
6th coldest
Rainfall
124 mm
9.8 wet days
Daylight
12 h 48 min
6:14 AM – 7:04 PM
Cloud cover
54%
9th clearest
Wind
14 km/h
2nd windiest
Solar energy
5.54 kWh/m²
Travel score
7.0
out of 10

Gualeguaychú is city in Gualeguaychú Department, Entre Ríos Province, Argentina.

Founded
1783

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 24°C by the end.

A typical October day in Gualeguaychú reaches about 23°C in the afternoon and slips back to 13°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 18°C and 28°C. Set against its neighbours, October runs about 3°C warmer than September and about 3°C cooler than November.

10°15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
12111
22112
32212
42212
52212
62212
72212
82212
92212
102212
112313
122313
132313
142313
152313
162313
172313
182313
192413
202413
212413
222414
232414
242414
252414
262414
272414
282414
292414
302414
312514

Gualeguaychú weather by month

How October compares with the rest of the year at a glance. October is the 7th-warmest and 3rd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan30° / 19°1107.713.95.3
Feb29° / 19°115813.25.8
Mar27° / 17°121812.37.0
Apr23° / 14°1307.911.27.3
May20° / 11°806.110.36.8
Jun17° / 696.59.95.8
Jul16° / 646105.6
Aug18° / 876.510.86.6
Sep20° / 10°87711.86.9
Oct23° / 13°1249.812.87.0
Nov26° / 15°1046.913.77.2
Dec29° / 18°1288.614.15.9

Cloud cover in October

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 39% 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 48%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15050
24951
34951
44951
54951
64951
74852
84852
94852
104951
114951
125050
135149
145248
155248
165248
175347
185347
195446
205446
215545
225545
235644
245644
255644
265644
275644
285644
295743
305743
315743

Chance of precipitation in October

Any precipitation

Gualeguaychú gets around 124 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 31% on the wettest days.

0%10%20%30%40%151015202531
Rain chance (%)
127
228
328
429
530
630
731
831
931
1031
1131
1231
1331
1430
1530
1630
1731
1831
1931
2030
2130
2230
2330
2430
2530
2630
2730
2830
2929
3029
3128

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 52% of days. Sticky, muggy-or-worse air turns up on roughly 6% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
16623920
26623920
364241020
462241130
561251130
660251230
760251230
858251340
956251441
1055261441
1154261541
1254261541
1353261551
1452261651
1551271651
1651271651
1750271751
1849271761
1949271761
2048271761
2148271871
2248271871
2347271871
2447271870
2547271980
2646271980
2746271980
2845271980
2945281980
3044282080
3143282080

Wind in October

Winds average 14 km/h in October.

Across October, daily wind ranges from about 14 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
114light breeze
214light breeze
314light breeze
414light breeze
514light breeze
614light breeze
714light breeze
814light breeze
914light breeze
1014light breeze
1114light breeze
1214light 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 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 6:33 AM to 5:58 AM, and sunset from 6:53 PM to 7:17 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.36:336:53
212.46:326:53
312.46:316:54
412.46:296:55
512.56:286:56
612.56:276:56
712.56:256:57
812.66:246:58
912.66:236:59
1012.66:216:59
1112.76:207:00
1212.76:197:01
1312.76:187:02
1412.86:177:02
1512.86:157:03
1612.86:147:04
1712.96:137:05
1812.96:127:06
1912.96:117:07
2013.06:107:07
2113.06:087:08
2213.06:077:09
2313.16:067:10
2413.16:057:11
2513.16:047:12
2613.26:037:12
2713.26:027:13
2813.26:017:14
2913.26:007:15
3013.35:597:16
3113.35:587:17

Solar energy in October

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in October, about 5.54 kWh/m².

For context, solar energy here swings from a low near 2.33 kWh/m² to a high of 7.34 kWh/m² in December across the year — October's 5.54 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.0Bright
25.1Bright
35.1Bright
45.1Bright
55.1Bright
65.2Bright
75.2Bright
85.2Bright
95.3Bright
105.3Bright
115.3Bright
125.4Bright
135.4Bright
145.5Bright
155.5Bright
165.6Bright
175.6Bright
185.7Bright
195.7Bright
205.8Bright
215.8Bright
225.9Bright
235.9Bright
246.0Bright
256.0Bright
266.0Intense
276.1Intense
286.1Intense
296.2Intense
306.2Intense
316.3Intense
Planning a trip in October

Is October a good time to visit Gualeguaychú?

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

7.0
Sightseeing
3rd-best month of the year
5.5
Beach & pool
7th-best month of the year

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

What to pack for Gualeguaychú in October

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

In October, Gualeguaychú 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 Gualeguaychú in October

LowModerateHighVery highExtreme

Clear-sky midday UV in October peaks around 8 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Gualeguaychú peaks around January 15 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 20 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 20UV 3
UV index (midday)Level
Jan13Extreme
Feb11Extreme
Mar10Very high
Apr6High
May4Moderate
Jun3Moderate
Jul3Moderate
Aug4Moderate
Sep6High
Oct8Very high
Nov11Extreme
Dec12Extreme
Location & terrain

Where is Gualeguaychú?

Gualeguaychú sits at 33.0°S, 58.5°W, 19 m above sea level, in Argentina. The nearest listed city is Fray Bentos, 23 km away.

Topography around Gualeguaychú

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

Within 3 km, the terrain around Gualeguaychú has only modest variations in elevation — a maximum elevation change of 33 m around an average of 11 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 52 m; within 80 km, only modest variations in elevation — a maximum elevation change of 101 m.

The land around Gualeguaychú is covered by artificial surfaces (40%) and grassland (31%) within 3 km, grassland (40%) and cropland (31%) within 16 km, and cropland (43%) and grassland (30%) within 80 km.

3 km
33 m
16 km
52 m
80 km
101 m
treesgrasslandcroplandartificial surfaceswaterwetland
October weather nearby: Fray Bentos 23 km · Mercedes 53 km · Concepción del Uruguay 64 km · Dolores 64 km · Gualeguay 75 km · Paysandú 87 km · Young 90 km · Colón 94 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 Gualeguaychú (-33.0078°, -58.5184°, 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. 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).