Concepción weather in May

In May, Concepción sees average daytime highs of 26°C and overnight lows near 17°C, with 142 mm of rain across 9.5 wet days and about 10.9 hours of daylight. It is the 10th-warmest and 5th-wettest month of the year here.

Highs ease over the month, from about 27°C in the first days to 24°C by the end. The sky is clear or mostly clear about 42% of the time in May, and the air most often feels muggy.

Daylight stretches from about 11 h 06 min at the start of May to 10 h 42 min by month's end. Set against the rest of the year, May is Concepción's 7th-clearest and 7th-windiest month. For the whole year in context, see Concepción's year-round climate.

Daytime high
26°
10th warmest
Overnight low
17°
4th coldest
Rainfall
142 mm
9.5 wet days
Daylight
10 h 54 min
7:20 AM – 6:12 PM
Cloud cover
52%
7th clearest
Wind
11 km/h
7th windiest
Solar energy
3.38 kWh/m²
Travel score
6.9
out of 10

Concepción is city and department capital of Concepcion, Paraguay.

Density
44/km²
people per km²
Founded
1787

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 27°C in the first days to 24°C by the end.

A typical May day in Concepción reaches about 26°C in the afternoon and slips back to 17°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 19°C and 32°C. Set against its neighbours, May runs about 4°C cooler than April and about 1°C warmer than June.

10°20°30°151015202531
Avg high (°C)Avg low (°C)
12818
22818
32718
42718
52718
62718
72718
82717
92717
102617
112617
122617
132617
142617
152617
162617
172617
182517
192517
202516
212516
222516
232516
242516
252516
262516
272516
282516
292416
302416
312416

How May really feels in Concepción

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.

Concepción weather by month

How May compares with the rest of the year at a glance. May is the 10th-warmest and 5th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan33° / 24°14813.513.33.1
Feb33° / 23°13612.912.83.4
Mar32° / 22°12911.512.24.0
Apr30° / 20°1318.611.55.5
May26° / 17°1429.510.96.9
Jun25° / 16°928.110.67.3
Jul25° / 14°706.810.77.7
Aug27° / 16°666.411.27.2
Sep29° / 18°1038.411.95.8
Oct31° / 21°17712.112.54.4
Nov31° / 21°17911.913.14.1
Dec33° / 23°17614.513.43.4

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 42% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 11% of May, with mostly cloudy or overcast conditions the remaining 47%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15545
25446
35446
45545
55545
65446
75446
85446
95446
105446
115446
125446
135446
145446
155446
165446
175446
185347
195347
205248
215347
225248
235248
245248
255149
265149
275050
285149
295149
305149
315149

Chance of precipitation in May

Any precipitation

Concepción gets around 142 mm of rain over 9.5 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 30% and peaks near 32% on the wettest days.

0%10%20%30%40%151015202531
Rain chance (%)
127
227
327
427
527
627
728
828
929
1029
1129
1230
1330
1430
1530
1630
1731
1831
1931
2031
2132
2232
2332
2432
2532
2632
2732
2831
2931
3031
3130

Humidity in May

DryComfortableHumidMuggyOppressiveMiserable

Most of May feels muggy — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, May lands in the muggy band about 27% of days. Sticky, muggy-or-worse air turns up on roughly 35% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
11414223614
21415223613
31516223611
41616223510
5161723359
6171723359
7171823348
8171823338
9181923337
10181924327
11192024317
12192024317
13192024307
14202124296
15202125286
16202125277
17212125267
18212225257
19222225247
20232225237
21232225227
22242225227
23252225217
24252225207
25262225207
26272225206
27272225206
28282224206
29282224206
30282224205
31282224205

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 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
1011calm
1111calm
1211calm
1311calm
1411calm
1511calm
1611calm
1711calm
1811calm
1911calm
2011calm
2111calm
2211calm
2311calm
2411calm
2512calm
2612calm
2712calm
2812calm
2912calm
3012calm
3112calm

Sunrise & sunset in May

DaylightNight

Daylight runs from about 11 h 06 min at the start of May to 10 h 42 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 24 minutes over May. Sunrise moves from 7:13 AM to 7:27 AM, and sunset from 6:21 PM to 6:07 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.17:136:21
211.17:136:21
311.17:146:20
411.17:146:19
511.17:146:18
611.07:156:18
711.07:156:17
811.07:166:17
911.07:166:16
1011.07:176:15
1111.07:176:15
1210.97:186:14
1310.97:186:14
1410.97:196:13
1510.97:196:13
1610.97:206:12
1710.97:206:12
1810.87:216:11
1910.87:216:11
2010.87:226:11
2110.87:226:10
2210.87:236:10
2310.87:236:09
2410.87:246:09
2510.77:246:09
2610.77:246:09
2710.77:256:08
2810.77:256:08
2910.77:266:08
3010.77:266:08
3110.77:276:07

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 3.38 kWh/m².

For context, solar energy here swings from a low near 2.98 kWh/m² to a high of 6.57 kWh/m² in January across the year — May's 3.38 kWh/m² sits near the bottom.

01234151015202531
Solar energy (kWh/m²)Level
13.9Moderate
23.9Moderate
33.9Moderate
43.8Moderate
53.8Moderate
63.8Moderate
73.7Moderate
83.7Moderate
93.6Moderate
103.6Moderate
113.6Moderate
123.5Moderate
133.5Moderate
143.5Moderate
153.4Moderate
163.4Moderate
173.4Moderate
183.3Moderate
193.3Moderate
203.3Moderate
213.2Moderate
223.2Moderate
233.2Moderate
243.1Moderate
253.1Moderate
263.1Moderate
273.1Moderate
283.0Moderate
293.0Moderate
303.0Moderate
313.0Moderate
Planning a trip in May

Is May a good time to visit Concepción?

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

6.9
Sightseeing
4th-best month of the year
6.6
Beach & pool
5th-best month of the year

May is a reasonable time to visit Concepción for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Concepción in May

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

In May, Concepción sees daytime highs around 26°C and nights near 17°C. Worth packing: light clothes and rain gear. About 10 days see rain.

light clothesrain gear

UV index in Concepción in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May peaks around 7 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Concepción peaks around January 18 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 12 at about 5 (high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highHighVery highExtremeJan 18UV 15Jul 12UV 5
UV index (midday)Level
Jan15Extreme
Feb14Extreme
Mar13Extreme
Apr9Very high
May7High
Jun6High
Jul5High
Aug7High
Sep7High
Oct9Very high
Nov13Extreme
Dec13Extreme

Air quality in Concepción 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 Concepción is worst in September — around 38 µg/m³ PM2.5 (poor), about 5.6× the cleanest month (April, 7 µg/m³).

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateModerateGoodSep 1437 µg/m³Apr 197 µg/m³
PM2.5 (µg/m³)Level
Jan11Good
Feb10Good
Mar9Good
Apr7Good
May8Good
Jun9Good
Jul15Moderate
Aug32Moderate
Sep38Poor
Oct26Moderate
Nov17Moderate
Dec9Good
Location & terrain

Where is Concepción?

Concepción sits at 23.4°S, 57.4°W, 78 m above sea level, in Paraguay. The nearest listed city is Yby Yaú, 103 km away.

Yby YaúBela VistaVilla HayesLimpioPedro Juan CaballeroPonta PorãMariano Roque AlonsoAsuncion

Topography around Concepción

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

Within 3 km, the terrain around Concepción has only modest variations in elevation — a maximum elevation change of 26 m around an average of 77 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 96 m; within 80 km, significant variations in elevation — a maximum elevation change of 327 m.

The land around Concepción is covered by grassland (33%), trees (30%) and artificial surfaces (29%) within 3 km, trees (45%) and grassland (45%) within 16 km, and grassland (47%) and trees (45%) within 80 km.

3 km
26 m
16 km
96 m
80 km
327 m
treesshrubsgrasslandcroplandartificial surfaceswaterwetland
May weather nearby: Yby Yaú 103 km · Bela Vista 171 km · Villa Hayes 189 km · Limpio 196 km · Pedro Juan Caballero 198 km · Ponta Porã 199 km · Mariano Roque Alonso 201 km · Asuncion 211 km

Paraguay travel facts

Travel advisory
Level 1
Exercise Normal Precautions
Power plugs
Type A / B / C / N
220 V · 50 Hz
Prices
≈ 35% of US
price level, 2025
GDP per capita
$7,027
2025
Happiness
6.2 / 10
World Happiness, 2025
Safe drinking water
64%
of population, 2024
Homicide rate
6.8
per 100k, 2023
Road deaths
22
per 100k/yr, 2019
Income group
Upper middle
World Bank
English
Moderate
EF EPI 531
Religion
Roman Catholic 80%Protestant 7%Believer 6%other 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 Concepción (-23.3999°, -57.4324°, elevation 78 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).