Arrecifes weather in May

In May, Arrecifes sees average daytime highs of 19°C and overnight lows near 9°C, with 64 mm of rain across 6.2 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 37% 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 Arrecifes's 12th-clearest and 9th-windiest month. For the whole year in context, see Arrecifes's year-round climate.

Daytime high
19°
9th warmest
Overnight low
5th coldest
Rainfall
64 mm
6.2 wet days
Daylight
10 h 12 min
7:50 AM – 6:04 PM
Cloud cover
56%
12th clearest
Wind
12 km/h
9th windiest
Solar energy
2.71 kWh/m²
Travel score
6.6
out of 10

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 Arrecifes 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
52111
62010
72010
82010
92010
102010
112010
122010
131910
141910
151910
161910
17199
18199
19199
20189
21189
22189
23189
24189
25188
26188
27178
28178
29178
30178
31178

Arrecifes 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°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 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 12% of May, with mostly cloudy or overcast conditions the remaining 51%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15446
25347
35347
45347
55347
65248
75248
85149
95149
105149
115149
125050
134951
144852
154951
164753
174753
184654
194753
204654
214555
224555
234654
244555
254555
264654
274654
284654
294654
304753
314753

Chance of precipitation in May

Any precipitation

Arrecifes gets around 64 mm of rain over 6.2 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 20% and peaks near 23% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
123
223
323
422
522
621
721
820
920
1020
1120
1220
1320
1420
1520
1621
1721
1821
1921
2020
2120
2220
2320
2420
2519
2619
2719
2818
2918
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
36619123
46718123
56918112
66918112
77117102
87117102
9721792
10721792
11721792
12731782
13741682
14741682
15741682
16741682
17741682
18741682
19751582
20751582
21771481
22771481
23781381
24791281
25791281
26811171
27811171
28821161
29821161
30841051
31841051

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
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
2612light breeze
2712light breeze
2812light breeze
2912light breeze
3012light breeze
3112light breeze

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 7:38 AM to 8:00 AM, and sunset from 6:17 PM to 5:55 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
110.77:386:17
210.67:396:16
310.67:396:15
410.67:406:14
510.57:416:13
610.57:426:12
710.57:436:11
810.47:436:10
910.47:446:09
1010.47:456:09
1110.47:466:08
1210.37:476:07
1310.37:476:06
1410.37:486:05
1510.37:496:04
1610.27:506:04
1710.27:506:03
1810.27:516:02
1910.27:526:02
2010.17:536:01
2110.17:536:00
2210.17:546:00
2310.17:555:59
2410.07:565:59
2510.07:565:58
2610.07:575:57
2710.07:585:57
2810.07:585:57
2910.07:595:56
309.98:005:56
319.98:005:55

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 2.71 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 — May's 2.71 kWh/m² sits near the bottom.

01234151015202531
Solar energy (kWh/m²)Level
13.2Moderate
23.2Moderate
33.1Moderate
43.1Moderate
53.1Moderate
63.0Moderate
73.0Moderate
83.0Moderate
93.0Moderate
102.9Moderate
112.9Moderate
122.8Moderate
132.8Moderate
142.8Moderate
152.7Moderate
162.7Moderate
172.7Moderate
182.6Moderate
192.6Moderate
202.6Moderate
212.5Moderate
222.5Moderate
232.5Moderate
242.5Moderate
252.5Moderate
262.5Moderate
272.5Moderate
282.4Moderate
292.4Moderate
302.4Moderate
312.4Moderate
Planning a trip in May

Is May a good time to visit Arrecifes?

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 Arrecifes for sightseeing.

What to pack for Arrecifes in May

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

In May, Arrecifes 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 Arrecifes 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 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 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 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
May 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).