Zárate weather in May

In May, Zárate sees average daytime highs of 19°C and overnight lows near 10°C, with 70 mm of rain across 5.8 wet days and about 10.3 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 36% of the time in May, and the air most often feels dry.

Daylight stretches from about 10 h 42 min at the start of May to 9 h 54 min by month's end. Set against the rest of the year, May is Zárate's 12th-clearest and 10th-windiest month. For the whole year in context, see Zárate's year-round climate.

Daytime high
19°
9th warmest
Overnight low
10°
5th coldest
Rainfall
70 mm
5.8 wet days
Daylight
10 h 12 min
7:45 AM – 5:59 PM
Cloud cover
57%
12th clearest
Wind
12 km/h
10th windiest
Solar energy
2.68 kWh/m²
Travel score
6.6
out of 10

Zárate is city in Buenos Aires Province, Argentina.

Founded
1854

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 Zárate reaches about 19°C in the afternoon and slips back to 10°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 15°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
52011
62011
72011
82011
92011
102011
112011
122010
131910
141910
151910
161910
171910
181910
191910
201810
211810
22189
23189
24189
25189
26189
27179
28179
29179
30178
31178

Zárate 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
Jan30° / 19°957.7145.7
Feb28° / 18°1108.613.36.1
Mar26° / 16°1087.512.37.2
Apr23° / 13°103811.27.3
May19° / 10°705.810.36.6
Jun16° / 566.29.85.5
Jul15° / 595.9105.2
Aug18° / 69610.76.3
Sep20° / 756.511.86.8
Oct22° / 12°1319.312.97.0
Nov26° / 15°1037.713.87.3
Dec28° / 17°1048.714.26.3

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 36% of the time in May, the cloudiest month of the year.

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
25545
35545
45347
55347
65446
75347
85347
95248
105248
115149
125149
134951
144852
154852
164753
174753
184654
194555
204456
214456
224555
234456
244456
254456
264456
274357
284456
294555
304555
314654

Chance of precipitation in May

Any precipitation

Zárate gets around 70 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 23% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
123
222
322
421
520
620
719
819
918
1018
1118
1218
1318
1419
1519
1619
1720
1820
1920
2020
2120
2220
2320
2420
2519
2619
2719
2818
2918
3018
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 69% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
16023143
26122143
36222133
46222133
56322123
66322123
76422113
86522103
96621103
10672193
11672193
12672193
13672193
14672193
15682192
16682192
17692092
18692092
19701992
20711892
21721792
22731692
23731692
24741592
25751492
26761482
27771382
28781372
29801262
30801262
31811252

Wind in May

Winds average 12 km/h in May.

Across May, daily wind ranges from about 11 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
111calm
211calm
311calm
411calm
511calm
611calm
711calm
811calm
911calm
1012calm
1112calm
1212calm
1312calm
1412calm
1512calm
1612calm
1712calm
1812calm
1912calm
2012calm
2112calm
2212calm
2312calm
2412calm
2512calm
2612calm
2712calm
2812calm
2912calm
3012calm
3112calm

Sunrise & sunset in May

DaylightNight

Daylight runs from about 10 h 42 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 48 minutes over May. Sunrise moves from 7:34 AM to 7:56 AM, and sunset from 6:13 PM to 5:51 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
110.77:346:13
210.67:346:12
310.67:356:11
410.67:366:10
510.57:376:09
610.57:386:08
710.57:386:07
810.47:396:06
910.47:406:05
1010.47:416:04
1110.47:426:03
1210.37:426:02
1310.37:436:02
1410.37:446:01
1510.37:456:00
1610.27:455:59
1710.27:465:59
1810.27:475:58
1910.27:485:57
2010.17:485:57
2110.17:495:56
2210.17:505:55
2310.17:515:55
2410.07:515:54
2510.07:525:54
2610.07:535:53
2710.07:535:53
2810.07:545:52
2910.07:555:52
309.97:555:51
319.97:565:51

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 7.42 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 Zárate?

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
2.9
Beach & pool
9th-best month of the year

May is a reasonable time to visit Zárate for sightseeing.

What to pack for Zárate in May

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

In May, Zárate sees daytime highs around 19°C and nights near 10°C. Little to plan around — just the basics. About 6 days see rain.

Sea temperature near Zárate in May

The nearest coast averages about 17°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 60 km away) is warmest in January at about 25°C and coldest in July near 13°C.

It's comfortable for a long swim from Nov 8 to Apr 22 — about 5.5 months when the water holds above 20°C.

10°15°20°25°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmcomfortable to swimcomfortable to swim
Sea temperature (°C)Comfort
Jan25Warm
Feb25Warm
Mar24Refreshing
Apr21Refreshing
May17Cool
Jun14Bracing
Jul13Bracing
Aug14Bracing
Sep15Cool
Oct18Cool
Nov21Refreshing
Dec23Refreshing

UV index in Zárate 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 Zárate peaks around January 15 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 15UV 13Jun 19UV 3
UV index (midday)Level
Jan13Extreme
Feb11Extreme
Mar10Very high
Apr6High
May4Moderate
Jun3Moderate
Jul3Moderate
Aug4Moderate
Sep6High
Oct8Very high
Nov11Extreme
Dec12Extreme

Air quality in Zárate 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 Zárate is worst in August — around 22 µg/m³ PM2.5 (moderate), about 3.3× the cleanest month (April, 7 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodAug 1721 µg/m³Apr 157 µg/m³
PM2.5 (µg/m³)Level
Jan11Good
Feb8Good
Mar9Good
Apr7Good
May9Good
Jun10Good
Jul13Moderate
Aug22Moderate
Sep14Moderate
Oct12Moderate
Nov8Good
Dec8Good
Location & terrain

Where is Zárate?

Zárate sits at 34.1°S, 59.0°W, 27 m above sea level, in Argentina. The nearest listed city is Campana, 10 km away.

Topography around Zárate

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

Within 3 km, the terrain around Zárate has only modest variations in elevation — a maximum elevation change of 42 m around an average of 15 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 57 m; within 80 km, only modest variations in elevation — a maximum elevation change of 83 m.

The land around Zárate is covered by artificial surfaces (42%) within 3 km, wetland (30%), grassland (23%) and cropland (23%) within 16 km, and cropland (30%) and wetland (29%) within 80 km.

3 km
42 m
16 km
57 m
80 km
83 m
treesgrasslandcroplandartificial surfacesbare terrainwaterwetland
May weather nearby: Campana 10 km · Pilar 42 km · San Antonio de Areco 44 km · Tortuguitas 49 km · Ingeniero Pablo Nogués 52 km · José C. Paz 52 km · General Pacheco 53 km · Luján 53 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 Zárate (-34.0958°, -59.0242°, elevation 27 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. 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).