San Antonio de Areco weather in May

In May, San Antonio de Areco sees average daytime highs of 19°C and overnight lows near 9°C, with 64 mm of rain across 5.8 wet days and about 10.2 hours of daylight. It is the 9th-warmest and 9th-wettest month of the year here.

Highs ease over the month, from about 21°C in the first days to 17°C by the end. The sky is clear or mostly clear about 37% of the time in May, and the air most often feels dry.

Daylight stretches from about 10 h 36 min at the start of May to 9 h 54 min by month's end. Set against the rest of the year, May is San Antonio de Areco's 12th-clearest and 10th-windiest month. For the whole year in context, see San Antonio de Areco's year-round climate.

Daytime high
19°
9th warmest
Overnight low
5th coldest
Rainfall
64 mm
5.8 wet days
Daylight
10 h 12 min
7:47 AM – 6:01 PM
Cloud cover
56%
12th clearest
Wind
12 km/h
10th windiest
Solar energy
2.68 kWh/m²
Travel score
6.6
out of 10

San Antonio de Areco is town in Buenos Aires Province, Argentina.

Founded
1730

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in May

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 21°C in the first days to 17°C by the end.

A typical May day in San Antonio de Areco reaches about 19°C in the afternoon and slips back to 9°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 14°C and 24°C. Set against its neighbours, May runs about 4°C cooler than April and about 3°C warmer than June.

10°20°30°151015202531
Avg high (°C)Avg low (°C)
12111
22111
32111
42111
52010
62010
72010
82010
92010
102010
112010
121910
131910
141910
151910
16199
17199
18199
19189
20189
21189
22189
23189
24189
25188
26178
27178
28178
29178
30178
31178

San Antonio de Areco weather by month

How May compares with the rest of the year at a glance. May is the 9th-warmest and 9th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan29° / 18°928.1145.7
Feb28° / 17°1058.213.36.3
Mar26° / 16°937.112.37.3
Apr23° / 12°100811.27.3
May19° / 645.810.26.6
Jun16° / 495.79.85.4
Jul15° / 515.79.95.1
Aug17° / 595.510.76.3
Sep19° / 706.211.86.8
Oct22° / 12°1259.512.96.9
Nov26° / 14°1007.913.87.2
Dec28° / 17°988.914.26.3

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

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

Beyond those clear spells, partly cloudy skies cover about 11% of May, with mostly cloudy or overcast conditions the remaining 52%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15644
25644
35545
45446
55446
65446
75347
85347
95248
105149
115149
125050
135050
144852
154753
164753
174654
184654
194555
204555
214456
224357
234357
244357
254357
264456
274456
284456
294555
304555
314654

Chance of precipitation in May

Any precipitation

San Antonio de Areco gets around 64 mm of rain over 5.8 wet days in May. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 19% and peaks near 22% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
122
222
321
421
520
620
719
819
918
1018
1118
1218
1319
1419
1519
1619
1720
1820
1920
2020
2120
2220
2319
2419
2519
2619
2718
2818
2917
3017
3117

Humidity in May

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, May lands in the dry band about 74% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
16520123
26619123
36719122
46819112
56819112
66918112
77018102
87018102
9711892
10711892
11711892
12721882
13721882
14721882
15721882
16731782
17731782
18741781
19751681
20751681
21761581
22761581
23771481
24781381
25791371
26801271
27811261
28811261
29831151
30831151
31851041

Wind in May

Winds average 12 km/h in May.

Across May, 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
112calm
212calm
312calm
412calm
512calm
612calm
712calm
812calm
912calm
1012calm
1112calm
1212calm
1312calm
1412calm
1512calm
1612calm
1712calm
1812calm
1912light breeze
2012light breeze
2112light breeze
2212light breeze
2312light breeze
2412light breeze
2512light breeze
2612light breeze
2712light breeze
2812light breeze
2912light breeze
3012light breeze
3112light breeze

Sunrise & sunset in May

DaylightNight

Daylight runs from about 10 h 36 min at the start of May to 9 h 54 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 42 minutes over May. Sunrise moves from 7:36 AM to 7:58 AM, and sunset from 6:15 PM to 5:52 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
110.67:366:15
210.67:366:13
310.67:376:12
410.67:386:11
510.57:396:10
610.57:406:09
710.57:406:08
810.47:416:07
910.47:426:07
1010.47:436:06
1110.47:446:05
1210.37:446:04
1310.37:456:03
1410.37:466:02
1510.27:476:02
1610.27:476:01
1710.27:486:00
1810.27:495:59
1910.17:505:59
2010.17:515:58
2110.17:515:57
2210.17:525:57
2310.17:535:56
2410.07:535:56
2510.07:545:55
2610.07:555:55
2710.07:565:54
2810.07:565:54
299.97:575:53
309.97:585:53
319.97:585:52

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 2.68 kWh/m².

For context, solar energy here swings from a low near 2.29 kWh/m² to a high of 7.41 kWh/m² in December across the year — May's 2.68 kWh/m² sits near the bottom.

01234151015202531
Solar energy (kWh/m²)Level
13.2Moderate
23.1Moderate
33.1Moderate
43.1Moderate
53.0Moderate
63.0Moderate
73.0Moderate
83.0Moderate
92.9Moderate
102.9Moderate
112.9Moderate
122.8Moderate
132.8Moderate
142.7Moderate
152.7Moderate
162.7Moderate
172.6Moderate
182.6Moderate
192.6Moderate
202.5Moderate
212.5Moderate
222.5Moderate
232.5Moderate
242.5Moderate
252.4Moderate
262.4Moderate
272.4Moderate
282.4Moderate
292.4Moderate
302.4Moderate
312.4Moderate
Planning a trip in May

Is May a good time to visit San Antonio de Areco?

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

6.6
Sightseeing
6th-best month of the year
2.8
Beach & pool
9th-best month of the year

May is a reasonable time to visit San Antonio de Areco for sightseeing.

What to pack for San Antonio de Areco in May

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

In May, San Antonio de Areco sees daytime highs around 19°C and nights near 9°C. Little to plan around — just the basics. About 6 days see rain.

UV index in San Antonio de Areco in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May 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 San Antonio de Areco 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 San Antonio de Areco in May

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in San Antonio de Areco is worst in August — around 20 µg/m³ PM2.5 (moderate), about 1.9× the cleanest month (November, 10 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodGoodModerateGoodAug 1619 µg/m³Nov 2310 µg/m³
PM2.5 (µg/m³)Level
Jan12Moderate
Feb11Good
Mar12Moderate
Apr11Good
May14Moderate
Jun16Moderate
Jul16Moderate
Aug20Moderate
Sep15Moderate
Oct13Moderate
Nov10Good
Dec11Good
Location & terrain

Where is San Antonio de Areco?

San Antonio de Areco sits at 34.3°S, 59.5°W, 35 m above sea level, in Argentina. The nearest listed city is Carmen de Areco, 35 km away.

Topography around San Antonio de Areco

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of San Antonio de Areco.

Within 3 km, the terrain around San Antonio de Areco has only modest variations in elevation — a maximum elevation change of 24 m around an average of 29 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 58 m; within 80 km, only modest variations in elevation — a maximum elevation change of 94 m.

The land around San Antonio de Areco is covered by grassland (41%) and cropland (30%) within 3 km, cropland (81%) within 16 km, and cropland (54%) and grassland (20%) within 80 km.

3 km
24 m
16 km
58 m
80 km
94 m
treesgrasslandcroplandartificial surfaceswaterwetland
May weather nearby: Carmen de Areco 35 km · Zárate 44 km · Mercedes 45 km · Luján 48 km · Campana 48 km · Baradero 49 km · Pilar 56 km · Arrecifes 62 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 San Antonio de Areco (-34.2508°, -59.4694°, elevation 35 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).