Santiago del Estero weather in May

In May, Santiago del Estero sees average daytime highs of 23°C and overnight lows near 13°C, with 22 mm of rain across 4.6 wet days and about 10.6 hours of daylight. It is the 10th-warmest and 9th-wettest month of the year here.

Highs ease over the month, from about 25°C in the first days to 22°C by the end. The sky is clear or mostly clear about 45% of the time in May, and the air most often feels dry.

Daylight stretches from about 11 hours at the start of May to 10 h 24 min by month's end. Set against the rest of the year, May is Santiago del Estero's 6th-clearest and 8th-windiest month. For the whole year in context, see Santiago del Estero's year-round climate.

Daytime high
23°
10th warmest
Overnight low
13°
4th coldest
Rainfall
22 mm
4.6 wet days
Daylight
10 h 36 min
7:54 AM – 6:32 PM
Cloud cover
49%
6th clearest
Wind
10 km/h
8th windiest
Solar energy
3.13 kWh/m²
Travel score
7.8
out of 10

Santiago del Estero is the capital of Santiago del Estero Province in northern Argentina.

Density
119/km²
people per km²
Founded
1553

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 25°C in the first days to 22°C by the end.

A typical May day in Santiago del Estero reaches about 23°C in the afternoon and slips back to 13°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 18°C and 29°C. Set against its neighbours, May runs about 3°C cooler than April and about 3°C warmer than June.

10°20°30°151015202531
Avg high (°C)Avg low (°C)
12516
22515
32515
42515
52515
62415
72415
82415
92415
102414
112414
122414
132414
142314
152314
162314
172313
182313
192313
202313
212313
222313
232212
242212
252212
262212
272212
282212
292212
302211
312211

How May really feels in Santiago del Estero

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.

Santiago del Estero weather by month

How May compares with the rest of the year at a glance. May is the 10th-warmest and 9th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan33° / 23°14712.813.63.2
Feb32° / 22°11610.6133.9
Mar30° / 20°12411.312.25.0
Apr27° / 17°688.311.47.0
May23° / 13°224.610.67.8
Jun21° / 10°153.710.37.5
Jul21° / 112.510.48.1
Aug25° / 11°122118.7
Sep28° / 14°283.911.87.6
Oct30° / 18°607.312.75.5
Nov32° / 20°869.313.44.3
Dec33° / 22°13011.713.73.3

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 45% 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 43%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15842
25842
35842
45842
55842
65842
75842
85842
95743
105842
115842
125743
135743
145743
155743
165644
175644
185644
195644
205743
215644
225743
235743
245743
255743
265743
275743
285743
295743
305743
315743

Chance of precipitation in May

Any precipitation

Santiago del Estero gets around 22 mm of rain over 4.6 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 15% and peaks near 19% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
119
219
318
418
517
617
716
816
916
1016
1116
1216
1316
1416
1516
1616
1715
1815
1915
2015
2115
2214
2314
2414
2514
2614
2714
2813
2913
3013
3113

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 60% of days. Sticky, muggy-or-worse air turns up on roughly 7% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1422217171
2432217171
3452117161
4462117151
5472117151
6482117140
7502117120
8512117110
9522117100
1053211790
1154211780
1256201770
1357201760
1458201750
1559191750
1659191750
1762181640
1863171640
1963171640
2065161540
2168151430
2268151430
2370141330
2470141330
2571141230
2672141130
2773141120
2874141020
2973151020
307415920
317415920

Wind in May

Winds average 10 km/h in May.

Across May, daily wind ranges from about 10 km/h on the calmest days to 10 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
110calm
210calm
310calm
410calm
510calm
610calm
710calm
810calm
910calm
1010calm
1110calm
1210calm
1310calm
1410calm
1510calm
1610calm
1710calm
1810calm
1910calm
2010calm
2110calm
2210calm
2310calm
2410calm
2510calm
2610calm
2710calm
2810calm
2910calm
3010calm
3110calm

Sunrise & sunset in May

DaylightNight

Daylight runs from about 11 hours at the start of May to 10 h 24 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 7:46 AM to 8:03 AM, and sunset from 6:43 PM to 6:26 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.07:466:43
210.97:466:42
310.97:476:41
410.97:476:40
510.97:486:40
610.87:496:39
710.87:496:38
810.87:506:37
910.87:506:37
1010.77:516:36
1110.77:526:35
1210.77:526:35
1310.77:536:34
1410.77:536:33
1510.67:546:33
1610.67:546:32
1710.67:556:32
1810.67:566:31
1910.67:566:31
2010.67:576:30
2110.57:576:30
2210.57:586:29
2310.57:596:29
2410.57:596:28
2510.58:006:28
2610.58:006:27
2710.48:016:27
2810.48:016:27
2910.48:026:27
3010.48:026:26
3110.48:036:26

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 3.13 kWh/m².

For context, solar energy here swings from a low near 2.9 kWh/m² to a high of 6.39 kWh/m² in December across the year — May's 3.13 kWh/m² sits near the bottom.

01234151015202531
Solar energy (kWh/m²)Level
13.4Moderate
23.4Moderate
33.4Moderate
43.3Moderate
53.3Moderate
63.3Moderate
73.3Moderate
83.3Moderate
93.2Moderate
103.2Moderate
113.2Moderate
123.2Moderate
133.1Moderate
143.1Moderate
153.1Moderate
163.1Moderate
173.1Moderate
183.1Moderate
193.0Moderate
203.0Moderate
213.0Moderate
223.0Moderate
233.0Moderate
243.0Moderate
253.0Moderate
263.0Moderate
273.0Moderate
283.0Moderate
293.0Moderate
303.0Moderate
313.0Moderate
Planning a trip in May

Hazard calendar for Santiago del Estero

In seasonPeak

None of Santiago del Estero's seasonal hazards are active in May. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.

Santiago del Estero's rainy season runs November–April, when most of the year's rain falls.

Rainy season
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is May a good time to visit Santiago del Estero?

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

7.8
Sightseeing
3rd-best month of the year
6.1
Beach & pool
8th-best month of the year

May is one of the better times to visit Santiago del Estero for general sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Santiago del Estero in May

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

In May, Santiago del Estero sees daytime highs around 23°C and nights near 13°C. Worth packing: light clothes. About 5 days see rain.

light clothes

UV index in Santiago del Estero in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May peaks around 6 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Santiago del Estero peaks around January 18 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 23 at about 4 (moderate).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeHighModerateHighVery highExtremeJan 18UV 14Jun 23UV 4
UV index (midday)Level
Jan14Extreme
Feb14Extreme
Mar11Extreme
Apr7Very high
May6High
Jun4Moderate
Jul4Moderate
Aug6High
Sep8Very high
Oct11Extreme
Nov12Extreme
Dec13Extreme
Location & terrain

Where is Santiago del Estero?

Santiago del Estero sits at 27.8°S, 64.3°W, 176 m above sea level, in Argentina. The nearest listed city is Termas de Río Hondo, 68 km away.

Topography around Santiago del Estero

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

Within 3 km, the terrain around Santiago del Estero has only modest variations in elevation — a maximum elevation change of 24 m around an average of 186 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 105 m; within 80 km, significant variations in elevation — a maximum elevation change of 595 m.

The land around Santiago del Estero is covered by artificial surfaces (78%) within 3 km, trees (44%) within 16 km, and trees (44%) and shrubs (34%) within 80 km.

3 km
24 m
16 km
105 m
80 km
595 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
May weather nearby: Termas de Río Hondo 68 km · Bella Vista 133 km · Aguilares 139 km · Alderetes 140 km · Famaillá 140 km · Monteros 141 km · San Miguel de Tucuman 144 km · Yerba Buena 150 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 Santiago del Estero (-27.8005°, -64.2629°, elevation 176 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. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).