Arrecifes weather in October

In October, Arrecifes sees average daytime highs of 23°C and overnight lows near 12°C, with 125 mm of rain across 9.8 wet days and about 12.9 hours of daylight. It is the 7th-warmest and 1st-wettest month of the year here.

Highs climb over the month, from about 21°C in the first days to 24°C by the end. The sky is clear or mostly clear about 40% 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 24 min by month's end. Set against the rest of the year, October is Arrecifes's 10th-clearest and 2nd-windiest month. For the whole year in context, see Arrecifes's year-round climate.

Daytime high
23°
7th warmest
Overnight low
12°
6th coldest
Rainfall
125 mm
9.8 wet days
Daylight
12 h 54 min
6:19 AM – 7:11 PM
Cloud cover
53%
10th clearest
Wind
14 km/h
2nd windiest
Solar energy
5.59 kWh/m²
Travel score
7.0
out of 10

Temperature in October

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 21°C in the first days to 24°C by the end.

A typical October day in Arrecifes reaches about 23°C in the afternoon and slips back to 12°C overnight — a 11°C spread between the day's warmth and the night's chill. On most days the high lands between 17°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)
12110
22110
32110
42111
52111
62211
72211
82211
92211
102211
112211
122212
132212
142312
152312
162312
172312
182312
192312
202312
212312
222312
232312
242412
252412
262413
272413
282413
292413
302413
312413

Arrecifes weather by month

How October compares with the rest of the year at a glance. October is the 7th-warmest and 1st-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan29° / 18°968.2145.7
Feb28° / 17°1098.413.36.4
Mar26° / 16°987.512.37.2
Apr23° / 12°1008.311.27.3
May19° / 646.210.36.6
Jun16° / 475.59.85.5
Jul15° / 445.7105.2
Aug18° / 585.310.76.5
Sep20° / 706.111.86.9
Oct23° / 12°1259.812.97.0
Nov26° / 14°1027.813.87.2
Dec29° / 17°1038.914.26.2

Cloud cover in October

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 40% of the time in October.

Beyond those clear spells, partly cloudy skies cover about 12% of October, with mostly cloudy or overcast conditions the remaining 48%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15248
25149
35050
45050
54951
64951
74852
84951
94951
105050
115050
125050
135149
145149
155149
165149
175149
185149
195149
205149
215248
225347
235347
245347
255446
265446
275446
285545
295644
305644
315743

Chance of precipitation in October

Any precipitation

Arrecifes gets around 125 mm of rain over 9.8 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 30% and peaks near 31% on the wettest days.

0%10%20%30%40%151015202531
Rain chance (%)
127
228
329
429
530
630
730
830
930
1030
1130
1230
1330
1430
1530
1630
1730
1830
1931
2031
2131
2231
2331
2431
2531
2631
2731
2831
2931
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 66% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
1791560
2781660
3761671
4751771
5741781
6731881
7721891
8711991
9711991
107019101
116920101
126820102
136820102
146720112
156621112
166621112
176621112
186521122
196422122
206322132
216322132
226322132
236222142
246123142
256123142
266023143
275924143
285824153
295725153
305626153
315626153

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 24 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 66 minutes over October. Sunrise moves from 6:39 AM to 6:03 AM, and sunset from 6:59 PM to 7:25 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.36:396:59
212.46:387:00
312.46:377:01
412.46:357:02
512.56:347:03
612.56:327:03
712.66:317:04
812.66:307:05
912.66:287:06
1012.76:277:06
1112.76:267:07
1212.76:247:08
1312.86:237:09
1412.86:227:10
1512.86:217:11
1612.96:197:11
1712.96:187:12
1812.96:177:13
1913.06:167:14
2013.06:157:15
2113.06:147:16
2213.16:127:17
2313.16:117:17
2413.16:107:18
2513.26:097:19
2613.26:087:20
2713.26:077:21
2813.36:067:22
2913.36:057:23
3013.36:047:24
3113.46:037:25

Solar energy in October

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in October, about 5.59 kWh/m².

For context, solar energy here swings from a low near 2.32 kWh/m² to a high of 7.4 kWh/m² in December across the year — October's 5.59 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.1Bright
25.1Bright
35.1Bright
45.2Bright
55.2Bright
65.2Bright
75.3Bright
85.3Bright
95.3Bright
105.4Bright
115.4Bright
125.5Bright
135.5Bright
145.6Bright
155.6Bright
165.6Bright
175.7Bright
185.7Bright
195.8Bright
205.8Bright
215.8Bright
225.9Bright
235.9Bright
246.0Bright
256.0Intense
266.1Intense
276.1Intense
286.2Intense
296.2Intense
306.2Intense
316.3Intense
Planning a trip in October

Is October a good time to visit Arrecifes?

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

7.0
Sightseeing
4th-best month of the year
5.2
Beach & pool
7th-best month of the year

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

What to pack for Arrecifes in October

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

In October, Arrecifes sees daytime highs around 23°C and nights near 12°C. Worth packing: light clothes, rain gear and sun protection. About 10 days see rain.

light clothesrain gearsun protection

UV index in Arrecifes 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 Arrecifes peaks around January 14 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 14UV 13Jun 19UV 3
UV index (midday)Level
Jan13Extreme
Feb11Extreme
Mar10Very high
Apr6High
May4Moderate
Jun3Moderate
Jul3Moderate
Aug4Moderate
Sep6High
Oct8Very high
Nov11Extreme
Dec12Extreme

Air quality in Arrecifes 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 Arrecifes is worst in August — around 40 µg/m³ PM2.5 (poor), about 6.5× the cleanest month (April, 6 µg/m³).

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateModerateGoodAug 1637 µg/m³Apr 156 µg/m³
PM2.5 (µg/m³)Level
Jan9Good
Feb7Good
Mar7Good
Apr6Good
May8Good
Jun10Good
Jul21Moderate
Aug40Poor
Sep17Moderate
Oct13Moderate
Nov8Good
Dec8Good
Location & terrain

Where is Arrecifes?

Arrecifes sits at 34.1°S, 60.1°W, 28 m above sea level, in Argentina. The nearest listed city is Salto, 29 km away.

Topography around Arrecifes

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

Within 3 km, the terrain around Arrecifes has only modest variations in elevation — a maximum elevation change of 31 m around an average of 38 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 56 m; within 80 km, only modest variations in elevation — a maximum elevation change of 103 m.

The land around Arrecifes is covered by cropland (55%) and artificial surfaces (22%) within 3 km, cropland (93%) within 16 km, and cropland (80%) within 80 km.

3 km
31 m
16 km
56 m
80 km
103 m
treesgrasslandcroplandartificial surfaceswaterwetland
October weather nearby: Salto 29 km · Carmen de Areco 43 km · Pergamino 48 km · San Pedro 59 km · Rojas 60 km · Baradero 62 km · San Antonio de Areco 62 km · Ramallo 65 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 Arrecifes (-34.0631°, -60.1026°, elevation 28 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).