Chascomús weather in May

In May, Chascomús sees average daytime highs of 18°C and overnight lows near 9°C, with 57 mm of rain across 6 wet days and about 10.1 hours of daylight. It is the 8th-warmest and 12th-wettest month of the year here.

Highs ease over the month, from about 20°C in the first days to 16°C by the end. The sky is clear or mostly clear about 35% 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 48 min by month's end. Set against the rest of the year, May is Chascomús's 11th-clearest and 12th-windiest month. For the whole year in context, see Chascomús's year-round climate.

Daytime high
18°
8th warmest
Overnight low
5th coldest
Rainfall
57 mm
6 wet days
Daylight
10 h 06 min
7:44 AM – 5:52 PM
Cloud cover
58%
11th clearest
Wind
12 km/h
12th windiest
Solar energy
2.57 kWh/m²
Travel score
6.3
out of 10

Chascomús is city in Argentina.

Founded
1779

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 20°C in the first days to 16°C by the end.

A typical May day in Chascomús reaches about 18°C in the afternoon and slips back to 9°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 14°C and 22°C. Set against its neighbours, May runs about 4°C cooler than April and about 3°C warmer than June.

10°15°20°25°151015202531
Avg high (°C)Avg low (°C)
12011
22011
32010
42010
51910
61910
71910
81910
91910
101910
111910
121910
131810
141810
15189
16189
17189
18189
19189
20179
21179
22179
23179
24178
25178
26178
27168
28168
29168
30168
31168

Chascomús weather by month

How May compares with the rest of the year at a glance. May is the 8th-warmest and 12th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan28° / 18°888.114.16.3
Feb27° / 17°918.213.36.8
Mar25° / 16°857.712.37.4
Apr22° / 12°877.311.17.2
May18° / 57610.16.3
Jun15° / 655.79.64.9
Jul14° / 616.39.84.4
Aug16° / 656.410.75.5
Sep18° / 72711.86.2
Oct21° / 11°1019.112.96.6
Nov24° / 14°888.313.97.2
Dec27° / 16°818.714.46.9

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 35% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 13% 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 (%)
15545
25446
35446
45446
55446
65446
75248
85248
95248
105149
115050
124951
134951
144852
154753
164753
174654
184555
194555
204456
214456
224357
234357
244357
254258
264357
274357
284456
294555
304555
314555

Chance of precipitation in May

Any precipitation

Chascomús gets around 57 mm of rain over 6 wet days in May, the driest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 20% and peaks near 23% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
119
218
318
417
517
617
717
817
917
1017
1118
1218
1319
1420
1520
1621
1721
1822
1922
2022
2123
2223
2322
2422
2522
2622
2721
2821
2920
3020
3119

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 75% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
16622102
26722101
36821101
46821101
56821101
66920101
7702091
8702091
9711991
10721981
11721981
12731980
13741880
14751870
15751870
16751870
17751870
18761770
19751771
20761671
21771571
22771571
23781471
24791371
25811261
26811261
27821161
28841051
29841051
3086941
3186941

Wind in May

Winds average 12 km/h in May, the calmest month.

Across May, daily wind ranges from about 12 km/h on the calmest days to 13 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
1612light breeze
1712light breeze
1812light breeze
1912light breeze
2012light breeze
2112light breeze
2212light breeze
2312light breeze
2412light breeze
2512light breeze
2613light breeze
2713light breeze
2813light breeze
2913light breeze
3013light breeze
3113light breeze

Sunrise & sunset in May

DaylightNight

Daylight runs from about 10 h 36 min at the start of May to 9 h 48 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 48 minutes over May. Sunrise moves from 7:32 AM to 7:56 AM, and sunset from 6:07 PM to 5:43 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
110.67:326:07
210.57:336:05
310.57:346:04
410.57:346:03
510.47:356:02
610.47:366:01
710.47:376:00
810.47:385:59
910.37:395:58
1010.37:395:57
1110.37:405:56
1210.27:415:56
1310.27:425:55
1410.27:435:54
1510.27:445:53
1610.17:445:52
1710.17:455:51
1810.17:465:51
1910.17:475:50
2010.07:485:49
2110.07:485:49
2210.07:495:48
2310.07:505:47
249.97:515:47
259.97:515:46
269.97:525:46
279.97:535:45
289.97:545:45
299.87:545:44
309.87:555:44
319.87:565:43

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 2.57 kWh/m².

For context, solar energy here swings from a low near 2.16 kWh/m² to a high of 7.37 kWh/m² in December across the year — May's 2.57 kWh/m² sits near the bottom.

01234151015202531
Solar energy (kWh/m²)Level
13.1Moderate
23.0Moderate
33.0Moderate
43.0Moderate
52.9Moderate
62.9Moderate
72.9Moderate
82.8Moderate
92.8Moderate
102.8Moderate
112.7Moderate
122.7Moderate
132.7Moderate
142.6Moderate
152.6Moderate
162.6Moderate
172.5Moderate
182.5Moderate
192.5Moderate
202.4Moderate
212.4Moderate
222.4Moderate
232.4Moderate
242.3Moderate
252.3Moderate
262.3Moderate
272.3Moderate
282.3Moderate
292.3Moderate
302.3Moderate
312.3Moderate
Planning a trip in May

Is May a good time to visit Chascomús?

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

6.3
Sightseeing
7th-best month of the year
2.1
Beach & pool
8th-best month of the year

May is a reasonable time to visit Chascomús for sightseeing.

What to pack for Chascomús in May

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

In May, Chascomús sees daytime highs around 18°C and nights near 9°C. Little to plan around — just the basics. About 6 days see rain.

Sea temperature near Chascomús in May

The nearest coast averages about 16°C in May — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 66 km away) is warmest in January at about 23°C and coldest in July near 11°C.

It's comfortable for a long swim from Nov 28 to Apr 4 — about 4.2 months when the water holds above 20°C.

10°15°20°25°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmcomfortable to swim
Sea temperature (°C)Comfort
Jan23Refreshing
Feb23Refreshing
Mar22Refreshing
Apr19Cool
May16Cool
Jun13Bracing
Jul11Bracing
Aug11Bracing
Sep13Bracing
Oct16Cool
Nov19Cool
Dec22Refreshing

UV index in Chascomús in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May peaks around 3 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Chascomús peaks around January 14 at about 12 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 20 at about 2 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 10 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highModerateHighVery highExtremeJan 14UV 12Jun 20UV 2
UV index (midday)Level
Jan12Extreme
Feb11Extreme
Mar10Very high
Apr6High
May3Moderate
Jun2Moderate
Jul3Moderate
Aug4Moderate
Sep6High
Oct7Very high
Nov11Extreme
Dec12Extreme
Location & terrain

Where is Chascomús?

Chascomús sits at 35.6°S, 58.0°W, 19 m above sea level, in Argentina. The nearest listed city is General Belgrano, 48 km away.

Topography around Chascomús

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

Within 3 km, the terrain around Chascomús has only modest variations in elevation — a maximum elevation change of 23 m around an average of 9 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 33 m; within 80 km, only modest variations in elevation — a maximum elevation change of 56 m.

The land around Chascomús is covered by water (46%) and artificial surfaces (23%) within 3 km, grassland (49%) and cropland (36%) within 16 km, and grassland (58%) and cropland (31%) within 80 km.

3 km
23 m
16 km
33 m
80 km
56 m
treesgrasslandcroplandartificial surfaceswaterwetland
May weather nearby: General Belgrano 48 km · Coronel Brandsen 50 km · Magdalena 71 km · San Vicente 72 km · La Plata 73 km · San Miguel del Monte 74 km · Berisso 79 km · Ensenada 80 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 Chascomús (-35.5768°, -58.0121°, 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. Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. 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).