Posadas weather in October

In October, Posadas sees average daytime highs of 27°C and overnight lows near 17°C, with 216 mm of rain across 12.4 wet days and about 12.7 hours of daylight. It is the 6th-warmest and 1st-wettest month of the year here.

Highs climb over the month, from about 26°C in the first days to 28°C by the end. The sky is clear or mostly clear about 37% of the time in October, and the air most often feels muggy.

Daylight stretches from about 12 h 18 min at the start of October to 13 hours by month's end. Set against the rest of the year, October is Posadas's 12th-clearest and 3rd-windiest month. For the whole year in context, see Posadas's year-round climate.

Daytime high
27°
6th warmest
Overnight low
17°
6th coldest
Rainfall
216 mm
12.4 wet days
Daylight
12 h 42 min
6:09 AM – 6:49 PM
Cloud cover
55%
12th clearest
Wind
12 km/h
3rd windiest
Solar energy
5.39 kWh/m²
Travel score
6.2
out of 10

Posadas is city in Argentina.

Density
317/km²
people per km²
Founded
1870

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 26°C in the first days to 28°C by the end.

A typical October day in Posadas reaches about 27°C in the afternoon and slips back to 17°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 22°C and 33°C. Set against its neighbours, October runs about 2°C warmer than September and about 2°C cooler than November.

10°15°20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
12616
22616
32616
42616
52617
62617
72617
82617
92717
102717
112717
122717
132717
142717
152718
162718
172718
182718
192718
202818
212818
222818
232818
242818
252818
262818
272818
282818
292818
302818
312818

How October really feels in Posadas

Once humidity and wind are folded in, October averages 0 days that feel above 32°C and 0 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
0
wind chill below the day's low

October sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Posadas weather by month

How October compares with the rest of the year at a glance. October is the 6th-warmest and 1st-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan32° / 22°13312.713.54.0
Feb31° / 22°12911.9134.3
Mar30° / 21°12110.512.25.1
Apr27° / 18°1599.911.46.6
May23° / 15°1439.110.77.0
Jun21° / 13°1218.910.36.7
Jul21° / 12°1179.110.46.8
Aug23° / 13°907.9117.4
Sep25° / 15°1479.811.87.1
Oct27° / 17°21612.412.76.2
Nov29° / 19°15610.413.45.5
Dec31° / 21°16411.813.74.4

Cloud cover in October

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 37% of the time in October, the cloudiest month of the year.

Beyond those clear spells, partly cloudy skies cover about 12% of October, with mostly cloudy or overcast conditions the remaining 51%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15149
25050
34852
44852
54852
64852
74753
84852
94753
104753
114753
124753
134951
144951
154951
164951
174951
184852
194951
204951
214951
225050
235050
245050
255050
265050
275050
285149
295149
305149
315149

Chance of precipitation in October

Any precipitation

Posadas gets around 216 mm of rain over 12.4 wet days in October, the wettest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 40% and peaks near 42% on the wettest days.

0%10%20%30%40%50%151015202531
Rain chance (%)
138
238
339
439
540
640
741
841
941
1041
1141
1242
1342
1442
1542
1642
1741
1841
1941
2040
2139
2239
2339
2438
2538
2638
2738
2838
2938
3038
3138

Humidity in October

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, October lands in the muggy band about 31% of days. Sticky, muggy-or-worse air turns up on roughly 40% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1242229232
2242228242
3222228252
4212228263
5202227273
6192127284
7182127295
8172127305
9172126306
10162027317
11152027317
12142027318
13131928318
14121928329
15121928329
16111928339
17101828349
181018283410
19918283410
20918283510
21918283511
22918273511
23918273511
241018273411
251018263412
261018263412
271018253412
281018253413
291018253413
301018243413
311018243314

Wind in October

Winds average 12 km/h in October.

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

051015151015202531
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
1612calm
1712calm
1812calm
1912calm
2012calm
2112calm
2212calm
2312calm
2412calm
2512calm
2612calm
2712calm
2812calm
2912calm
3012calm
3112calm

Sunrise & sunset in October

DaylightNight

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

Days grow by about 42 minutes over October. Sunrise moves from 6:25 AM to 5:56 AM, and sunset from 6:40 PM to 6:58 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.36:256:40
212.36:246:41
312.36:236:41
412.36:226:42
512.46:206:42
612.46:196:43
712.46:186:44
812.46:176:44
912.56:166:45
1012.56:156:45
1112.56:146:46
1212.66:136:46
1312.66:126:47
1412.66:116:47
1512.66:106:48
1612.76:096:49
1712.76:086:49
1812.76:076:50
1912.76:066:50
2012.86:056:51
2112.86:046:52
2212.86:036:52
2312.86:026:53
2412.96:026:54
2512.96:016:54
2612.96:006:55
2712.95:596:56
2813.05:586:56
2913.05:586:57
3013.05:576:58
3113.05:566:58

Solar energy in October

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in October, about 5.39 kWh/m².

For context, solar energy here swings from a low near 2.61 kWh/m² to a high of 6.74 kWh/m² in December across the year — October's 5.39 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.0Bright
25.0Bright
35.0Bright
45.0Bright
55.1Bright
65.1Bright
75.1Bright
85.1Bright
95.2Bright
105.2Bright
115.2Bright
125.2Bright
135.3Bright
145.3Bright
155.3Bright
165.4Bright
175.4Bright
185.4Bright
195.5Bright
205.5Bright
215.6Bright
225.6Bright
235.6Bright
245.7Bright
255.7Bright
265.8Bright
275.8Bright
285.8Bright
295.9Bright
305.9Bright
316.0Bright
Planning a trip in October

Is October a good time to visit Posadas?

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

6.2
Sightseeing
7th-best month of the year
6.4
Beach & pool
5th-best month of the year

October is a reasonable time to visit Posadas for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Posadas in October

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

In October, Posadas sees daytime highs around 27°C and nights near 17°C. Pack light clothes. Worth having: rain gear and sun protection. About 12 days see rain.

light clothesrain gearsun protection

UV index in Posadas in October

LowModerateHighVery highExtreme

Clear-sky midday UV in October peaks around 7 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Posadas peaks around January 19 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 21 at about 4 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highHighModerateHighVery highExtremeJan 19UV 14Jun 21UV 4
UV index (midday)Level
Jan14Extreme
Feb13Extreme
Mar11Extreme
Apr8Very high
May5High
Jun4Moderate
Jul4Moderate
Aug5High
Sep8Very high
Oct7High
Nov11Extreme
Dec13Extreme

Air quality in Posadas 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 Posadas is worst in September — around 19 µg/m³ PM2.5 (moderate), about 3.0× the cleanest month (December, 6 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateModerateGoodSep 1319 µg/m³Mar 236 µg/m³
PM2.5 (µg/m³)Level
Jan9Good
Feb12Good
Mar6Good
Apr7Good
May7Good
Jun8Good
Jul10Good
Aug16Moderate
Sep19Moderate
Oct11Good
Nov15Moderate
Dec6Good
Location & terrain

Where is Posadas?

Posadas sits at 27.4°S, 55.9°W, 83 m above sea level, in Argentina. The nearest listed city is Encarnación, 9.0 km away.

Topography around Posadas

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

Within 3 km, the terrain around Posadas has only modest variations in elevation — a maximum elevation change of 72 m around an average of 116 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 139 m; within 80 km, significant variations in elevation — a maximum elevation change of 419 m.

The land around Posadas is covered by artificial surfaces (69%) and trees (22%) within 3 km, grassland (33%), trees (29%) and water (23%) within 16 km, and trees (40%) and grassland (30%) within 80 km.

3 km
72 m
16 km
139 m
80 km
419 m
treesgrasslandcroplandartificial surfaceswaterwetland
October weather nearby: Encarnación 9.0 km · Garupá 14 km · Trinidad 36 km · Apóstoles 60 km · Leandro N. Alem 64 km · Gobernador Virasora 74 km · Ituzaingó 78 km · Jardín América 79 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 Posadas (-27.3918°, -55.9238°, elevation 83 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).