Santa Elena weather in May

In May, Santa Elena sees average daytime highs of 21°C and overnight lows near 12°C, with 79 mm of rain across 6.5 wet days and about 10.5 hours of daylight. It is the 9th-warmest and 8th-wettest month of the year here.

Highs ease over the month, from about 22°C in the first days to 19°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 48 min at the start of May to 10 h 12 min by month's end. Set against the rest of the year, May is Santa Elena's 12th-clearest and 8th-windiest month. For the whole year in context, see Santa Elena's year-round climate.

Daytime high
21°
9th warmest
Overnight low
12°
5th coldest
Rainfall
79 mm
6.5 wet days
Daylight
10 h 24 min
7:42 AM – 6:09 PM
Cloud cover
55%
12th clearest
Wind
11 km/h
8th windiest
Solar energy
2.88 kWh/m²
Travel score
7.0
out of 10

Santa Elena is Argentine city in province of Entre Ríos.

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 22°C in the first days to 19°C by the end.

A typical May day in Santa Elena reaches about 21°C in the afternoon and slips back to 12°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 16°C and 26°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)
12313
22213
32213
42213
52213
62213
72213
82213
92213
102213
112112
122112
132112
142112
152112
162112
172112
182012
192012
202011
212011
222011
232011
242011
252011
261911
271911
281910
291910
301910
311910

How May really feels in Santa Elena

Once humidity and wind are folded in, May averages 0 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.

Days feeling ≥ 32°C
0
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

May sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Santa Elena weather by month

How May compares with the rest of the year at a glance. May is the 9th-warmest and 8th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan31° / 20°1098.913.84.8
Feb30° / 20°1168.713.15.3
Mar28° / 18°1198.512.26.5
Apr24° / 15°1438.611.37.3
May21° / 12°796.510.57.0
Jun18° / 625.6106.5
Jul18° / 485.110.26.6
Aug20° / 655.710.97.3
Sep22° / 11°756.511.87.5
Oct25° / 14°1338.812.87.2
Nov28° / 17°1167.513.66.8
Dec30° / 19°1347.9145.5

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%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15644
25446
35446
45446
55347
65248
75149
85149
95149
105050
114951
124951
134753
144753
154654
164654
174654
184555
194555
204555
214654
224654
234753
244753
254852
264852
274852
285050
295050
305149
315149

Chance of precipitation in May

Any precipitation

Santa Elena gets around 79 mm of rain over 6.5 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 21% and peaks near 25% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%40%151015202531
Rain chance (%)
125
225
325
424
524
624
724
823
923
1023
1122
1222
1322
1422
1521
1621
1721
1820
1920
2019
2119
2219
2319
2418
2518
2618
2718
2818
2918
3018
3118

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 58% of days. Sticky, muggy-or-worse air turns up on roughly 8% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1472117132
2472117132
3482116132
4492116132
5502116122
6502116121
7522115111
8522215101
9522215101
1052221691
1153221681
1253221681
1354221671
1454221770
1556211760
1656211760
1757201760
1858201750
1959191750
2060181750
2162171650
2262161651
2363161551
2464151551
2566141451
2666141451
2767141351
2869131251
2969131251
3070131151
3171131051

Wind in May

Winds average 11 km/h in May.

Across May, daily wind ranges from about 11 km/h on the calmest days to 11 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
1011calm
1111calm
1211calm
1311calm
1411calm
1511calm
1611calm
1711calm
1811calm
1911calm
2011calm
2111calm
2211calm
2311calm
2411calm
2511calm
2611calm
2711calm
2811calm
2911calm
3011calm
3111calm

Sunrise & sunset in May

DaylightNight

Daylight runs from about 10 h 48 min at the start of May to 10 h 12 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 36 minutes over May. Sunrise moves from 7:32 AM to 7:52 AM, and sunset from 6:21 PM to 6:01 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
110.87:326:21
210.87:336:20
310.87:336:19
410.77:346:18
510.77:356:17
610.77:356:16
710.77:366:15
810.67:376:14
910.67:386:14
1010.67:386:13
1110.67:396:12
1210.57:406:11
1310.57:406:11
1410.57:416:10
1510.57:426:09
1610.47:426:09
1710.47:436:08
1810.47:446:07
1910.47:446:07
2010.47:456:06
2110.37:466:06
2210.37:466:05
2310.37:476:04
2410.37:486:04
2510.37:486:04
2610.27:496:03
2710.27:496:03
2810.27:506:02
2910.27:516:02
3010.27:516:02
3110.27:526:01

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 2.88 kWh/m².

For context, solar energy here swings from a low near 2.48 kWh/m² to a high of 7.15 kWh/m² in December across the year — May's 2.88 kWh/m² sits near the bottom.

01234151015202531
Solar energy (kWh/m²)Level
13.3Moderate
23.3Moderate
33.2Moderate
43.2Moderate
53.2Moderate
63.1Moderate
73.1Moderate
83.1Moderate
93.1Moderate
103.0Moderate
113.0Moderate
123.0Moderate
132.9Moderate
142.9Moderate
152.9Moderate
162.9Moderate
172.8Moderate
182.8Moderate
192.8Moderate
202.8Moderate
212.7Moderate
222.7Moderate
232.7Moderate
242.7Moderate
252.7Moderate
262.7Moderate
272.7Moderate
282.6Moderate
292.6Moderate
302.6Moderate
312.6Moderate
Planning a trip in May

Is May a good time to visit Santa Elena?

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

7.0
Sightseeing
5th-best month of the year
4.1
Beach & pool
9th-best month of the year

May is one of the better times to visit Santa Elena for general sightseeing.

What to pack for Santa Elena in May

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

In May, Santa Elena sees daytime highs around 21°C and nights near 12°C. Little to plan around — just the basics. About 7 days see rain.

UV index in Santa Elena 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 Santa Elena peaks around January 19 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 20 at about 3 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highModerateHighVery highExtremeJan 19UV 13Jun 20UV 3
UV index (midday)Level
Jan14Extreme
Feb13Extreme
Mar10Extreme
Apr7High
May4Moderate
Jun3Moderate
Jul4Moderate
Aug5Moderate
Sep7High
Oct8Very high
Nov11Extreme
Dec12Extreme

Air quality in Santa Elena 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 Santa Elena is worst in August — around 22 µg/m³ PM2.5 (moderate), about 3.8× the cleanest month (May, 6 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodAug 1721 µg/m³May 116 µg/m³
PM2.5 (µg/m³)Level
Jan9Good
Feb8Good
Mar6Good
Apr6Good
May6Good
Jun7Good
Jul13Moderate
Aug22Moderate
Sep15Moderate
Oct9Good
Nov6Good
Dec7Good
Location & terrain

Where is Santa Elena?

Santa Elena sits at 30.9°S, 59.8°W, 67 m above sea level, in Argentina. The nearest listed city is La Paz, 26 km away.

Topography around Santa Elena

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

Within 3 km, the terrain around Santa Elena has only modest variations in elevation — a maximum elevation change of 56 m around an average of 39 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 68 m; within 80 km, only modest variations in elevation — a maximum elevation change of 87 m.

The land around Santa Elena is covered by water (34%), trees (25%) and grassland (25%) within 3 km, wetland (29%) and trees (27%) within 16 km, and grassland (29%), cropland (24%) and trees (21%) within 80 km.

3 km
56 m
16 km
68 m
80 km
87 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwaterwetland
May weather nearby: La Paz 26 km · San Javier 43 km · San Justo 79 km · Federal 96 km · Esquina 106 km · Paraná 112 km · Santa Fe 117 km · Esperanza 122 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 Santa Elena (-30.9443°, -59.7883°, elevation 67 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).