Belén weather in May

In May, Belén sees average daytime highs of 20°C and overnight lows near 9°C, with 29 mm of rain across 5 wet days and about 10.7 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 18°C by the end. The sky is clear or mostly clear about 63% 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 Belén's 6th-clearest and 12th-windiest month. For the whole year in context, see Belén's year-round climate.

Daytime high
20°
9th warmest
Overnight low
4th coldest
Rainfall
29 mm
5 wet days
Daylight
10 h 36 min
8:05 AM – 6:43 PM
Cloud cover
33%
6th clearest
Wind
4 km/h
12th windiest
Solar energy
4 kWh/m²
Travel score
7.5
out of 10

Belén is city in Catamarca province, Argentina.

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 18°C by the end.

A typical May day in Belén reaches about 20°C in the afternoon and slips back to 9°C overnight — a 11°C spread between the day's warmth and the night's chill. On most days the high lands between 14°C and 25°C. Set against its neighbours, May runs about 3°C cooler than April and about 2°C warmer than June.

10°20°30°151015202531
Avg high (°C)Avg low (°C)
12111
22111
32111
42111
52111
62111
72110
82110
92010
102010
112010
122010
132010
142010
15209
16209
17199
18199
19199
20199
21199
22198
23198
24198
25198
26198
27198
28198
29198
30188
31187

Belén 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 daysSnow daysDaylight (hours)Travel score
Jan28° / 18°9612.8013.65.5
Feb27° / 17°8010.10136.4
Mar26° / 16°7510.4012.26.9
Apr23° / 13°487.5011.47.6
May20° / 295010.77.5
Jun18° / 142.50.210.37.5
Jul18° / 142.50.610.47.4
Aug20° / 162.80.3118.1
Sep22° / 10°304.40.311.88.2
Oct25° / 13°415.9012.78.0
Nov27° / 15°547.3013.47.2
Dec29° / 17°719.2013.76.1

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 63% 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 24%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
17624
27525
37525
47525
57525
67525
77525
87525
97525
107426
117426
127426
137426
147426
157525
167525
177525
187525
197624
207723
217723
227723
237723
247822
257822
267822
277822
287822
297921
307921
317921

Chance of precipitation in May

Any precipitation

Belén gets around 29 mm of rain over 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 16% and peaks near 18% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
117
217
317
418
518
618
718
818
918
1018
1118
1217
1317
1417
1517
1616
1716
1816
1916
2015
2115
2215
2315
2414
2514
2614
2714
2814
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 99% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)
1964
2973
3973
4973
5982
6982
7982
8991
9991
10991
11991
12991
131000
141000
151000
161000
171000
181000
191000
201000
211000
221000
231000
241000
251000
261000
271000
281000
291000
301000
311000

Wind in May

Winds average 4 km/h in May, the calmest month.

Across May, daily wind ranges from about 4 km/h on the calmest days to 5 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
15calm
25calm
35calm
45calm
55calm
65calm
75calm
85calm
94calm
104calm
114calm
124calm
134calm
144calm
154calm
164calm
174calm
184calm
194calm
204calm
214calm
224calm
234calm
244calm
254calm
264calm
274calm
284calm
294calm
304calm
314calm

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 7:56 AM to 8:14 AM, and sunset from 6:54 PM to 6:37 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.07:566:54
210.97:576:53
310.97:586:52
410.97:586:52
510.97:596:51
610.87:596:50
710.88:006:49
810.88:016:49
910.88:016:48
1010.88:026:47
1110.78:026:47
1210.78:036:46
1310.78:036:45
1410.78:046:45
1510.78:056:44
1610.68:056:43
1710.68:066:43
1810.68:066:42
1910.68:076:42
2010.68:086:41
2110.58:086:41
2210.58:096:40
2310.58:096:40
2410.58:106:40
2510.58:106:39
2610.58:116:39
2710.48:126:38
2810.48:126:38
2910.48:136:38
3010.48:136:38
3110.48:146:37

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 4 kWh/m².

For context, solar energy here swings from a low near 3.78 kWh/m² to a high of 7.54 kWh/m² in December across the year — May's 4 kWh/m² sits near the bottom.

012345151015202531
Solar energy (kWh/m²)Level
14.3Bright
24.3Bright
34.3Bright
44.3Bright
54.2Bright
64.2Bright
74.2Bright
84.2Bright
94.1Bright
104.1Bright
114.1Bright
124.1Bright
134.0Bright
144.0Bright
154.0Moderate
164.0Moderate
174.0Moderate
183.9Moderate
193.9Moderate
203.9Moderate
213.9Moderate
223.9Moderate
233.9Moderate
243.9Moderate
253.9Moderate
263.8Moderate
273.8Moderate
283.8Moderate
293.8Moderate
303.8Moderate
313.8Moderate
Planning a trip in May

Hazard calendar for Belén

In seasonPeak

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

Belén'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 Belén?

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

7.5
Sightseeing
5th-best month of the year
3.7
Beach & pool
10th-best month of the year

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

What to pack for Belén in May

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

In May, Belén sees daytime highs around 20°C and nights near 9°C. Little to plan around — just the basics. About 5 days see rain.

UV index in Belén 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 Belén peaks around January 18 at about 16 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 10 at about 5 (moderate).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highHighModerateHighVery highExtremeJan 18UV 16Jul 10UV 5
UV index (midday)Level
Jan16Extreme
Feb16Extreme
Mar13Extreme
Apr8Very high
May6High
Jun5Moderate
Jul5Moderate
Aug7Very high
Sep10Very high
Oct13Extreme
Nov14Extreme
Dec16Extreme
Location & terrain

Where is Belén?

Belén sits at 27.6°S, 67.0°W, 1,223 m above sea level, in Argentina. The nearest listed city is Aimogasta, 103 km away.

Topography around Belén

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

Within 3 km, the terrain around Belén has large variations in elevation — a maximum elevation change of 639 m around an average of 1,356 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,489 m; within 80 km, extreme variations in elevation — a maximum elevation change of 4,148 m.

The land around Belén is covered by shrubs (60%) within 3 km, shrubs (83%) within 16 km, and bare terrain (40%), shrubs (32%) and grassland (27%) within 80 km.

3 km
639 m
16 km
1,489 m
80 km
4,148 m
treesshrubsgrasslandcroplandartificial surfacesbare terrain
May weather nearby: Aimogasta 103 km · Aguilares 141 km · Santa María 144 km · Catamarca 152 km · San Isidro 156 km · Monteros 160 km · Famaillá 174 km · Chilecito 174 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 Belén (-27.6495°, -67.0263°, elevation 1,223 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).