Uruguaiana weather in May

In May, Uruguaiana sees average daytime highs of 22°C and overnight lows near 13°C, with 115 mm of rain across 7.8 wet days and about 10.5 hours of daylight. It is the 9th-warmest and 9th-wettest month of the year here.

Highs ease over the month, from about 23°C in the first days to 20°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 54 min at the start of May to 10 h 12 min by month's end. Set against the rest of the year, May is Uruguaiana's 11th-clearest and 8th-windiest month. For the whole year in context, see Uruguaiana's year-round climate.

Daytime high
22°
9th warmest
Overnight low
13°
5th coldest
Rainfall
115 mm
7.8 wet days
Daylight
10 h 30 min
8:29 AM – 7:00 PM
Cloud cover
56%
11th clearest
Wind
12 km/h
8th windiest
Solar energy
2.95 kWh/m²
Travel score
7.0
out of 10

Uruguaiana is human settlement in Brazil.

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 23°C in the first days to 20°C by the end.

A typical May day in Uruguaiana reaches about 22°C in the afternoon and slips back to 13°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 17°C and 27°C. Set against its neighbours, May runs about 4°C cooler than April and about 2°C warmer than June.

10°15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
12414
22314
32314
42314
52314
62314
72314
82314
92314
102314
112213
122213
132213
142213
152213
162213
172213
182113
192113
202113
212112
222112
232112
242112
252012
262012
272012
282012
292012
302012
312011

How May really feels in Uruguaiana

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.

Uruguaiana 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
Jan32° / 21°13910.413.74.3
Feb31° / 21°12710.313.14.7
Mar29° / 19°1249.212.25.8
Apr26° / 16°1779.511.37.0
May22° / 13°1157.810.57.0
Jun19° / 11°1138.510.16.4
Jul19° / 10°1037.510.36.6
Aug21° / 11°897.910.97.1
Sep23° / 13°1268.911.87.1
Oct26° / 15°18910.712.76.7
Nov28° / 17°1368.413.56.3
Dec31° / 20°1359.313.94.9

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 37% 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 51%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15545
25446
35446
45446
55347
65347
75446
85347
95149
105149
115149
124951
134951
144852
154852
164852
174654
184654
194654
204654
214555
224654
234654
244753
254753
264753
274753
284753
294852
304852
314852

Chance of precipitation in May

Any precipitation

Uruguaiana gets around 115 mm of rain over 7.8 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 25% and peaks near 28% on the wettest days.

0%10%20%30%40%151015202531
Rain chance (%)
128
227
327
426
526
626
725
825
924
1024
1124
1224
1324
1424
1524
1624
1724
1824
1925
2025
2125
2225
2325
2425
2526
2626
2726
2826
2926
3026
3126

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 49% of days. Sticky, muggy-or-worse air turns up on roughly 13% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1382121164
2392120163
3392219173
4402219173
5412218172
6422317162
7422317162
8432317162
9432416151
10442416151
11452417141
12452417141
13462417131
14462318130
15462318120
16472318120
17482319110
18482219100
19492219100
2050221990
2152211881
2252211881
2354201871
2455201771
2556191771
2657191671
2757191671
2859181571
2960181471
3061181371
3161181371

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 54 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 42 minutes over May. Sunrise moves from 8:20 AM to 8:38 AM, and sunset from 7:12 PM to 6:53 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
110.98:207:12
210.88:207:11
310.88:217:10
410.88:227:09
510.88:227:08
610.78:237:07
710.78:237:06
810.78:247:06
910.78:257:05
1010.68:257:04
1110.68:267:03
1210.68:277:03
1310.68:277:02
1410.68:287:01
1510.58:297:01
1610.58:297:00
1710.58:306:59
1810.58:316:59
1910.48:316:58
2010.48:326:58
2110.48:326:57
2210.48:336:57
2310.48:346:56
2410.48:346:56
2510.38:356:55
2610.38:356:55
2710.38:366:54
2810.38:376:54
2910.38:376:54
3010.38:386:53
3110.28:386:53

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 2.95 kWh/m².

For context, solar energy here swings from a low near 2.47 kWh/m² to a high of 6.99 kWh/m² in December across the year — May's 2.95 kWh/m² sits near the bottom.

01234151015202531
Solar energy (kWh/m²)Level
13.4Moderate
23.4Moderate
33.3Moderate
43.3Moderate
53.3Moderate
63.2Moderate
73.2Moderate
83.2Moderate
93.1Moderate
103.1Moderate
113.1Moderate
123.0Moderate
133.0Moderate
143.0Moderate
152.9Moderate
162.9Moderate
172.9Moderate
182.9Moderate
192.8Moderate
202.8Moderate
212.8Moderate
222.8Moderate
232.8Moderate
242.8Moderate
252.7Moderate
262.7Moderate
272.7Moderate
282.7Moderate
292.7Moderate
302.7Moderate
312.7Moderate
Planning a trip in May

Is May a good time to visit Uruguaiana?

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

7.0
Sightseeing
3rd-best month of the year
4.7
Beach & pool
9th-best month of the year

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

What to pack for Uruguaiana in May

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

In May, Uruguaiana sees daytime highs around 22°C and nights near 13°C. Little to plan around — just the basics. About 8 days see rain.

UV index in Uruguaiana in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May peaks around 5 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Uruguaiana peaks around January 24 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 21 at about 4 (moderate).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highModerateHighVery highVery highExtremeJan 24UV 13Jun 21UV 4
UV index (midday)Level
Jan13Extreme
Feb13Extreme
Mar11Extreme
Apr8Very high
May5Moderate
Jun4Moderate
Jul4Moderate
Aug5Moderate
Sep7Very high
Oct7High
Nov11Extreme
Dec12Extreme
Location & terrain

Where is Uruguaiana?

Uruguaiana sits at 29.8°S, 57.1°W, 79 m above sea level, in Brazil. The nearest listed city is Paso de los Libres, 5.0 km away.

Topography around Uruguaiana

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

Within 3 km, the terrain around Uruguaiana has only modest variations in elevation — a maximum elevation change of 40 m around an average of 55 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 255 m.

The land around Uruguaiana is covered by artificial surfaces (36%) and water (25%) within 3 km, grassland (40%) within 16 km, and grassland (66%) within 80 km.

3 km
40 m
16 km
96 m
80 km
255 m
treesgrasslandcroplandartificial surfaceswaterwetland
May weather nearby: Paso de los Libres 5.0 km · Monte Caseros 76 km · Itaqui 87 km · Curuzú Cuatiá 93 km · Quaraí 93 km · Artigas 94 km · Mercedes 115 km · Alegrete 125 km

Brazil travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type C / N
127 / 220 V · 60 Hz
Prices
≈ 46% of US
price level, 2025
GDP per capita
$10,713
2025
Happiness
6.6 / 10
World Happiness, 2025
Safe drinking water
89%
of population, 2024
Homicide rate
19.3
per 100k, 2023
Road deaths
16
per 100k/yr, 2019
Income group
Upper middle
World Bank
English
Low
EF EPI 482
Religion
Roman Catholic 57%Evangelical 27%none 9%other 4%

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 Uruguaiana (-29.7547°, -57.0883°, elevation 79 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).