Piratini weather in May

In May, Piratini sees average daytime highs of 19°C and overnight lows near 11°C, with 100 mm of rain across 9 wet days and about 10.4 hours of daylight. It is the 8th-warmest and 12th-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 29% 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 06 min by month's end. Set against the rest of the year, May is Piratini's 10th-clearest and 12th-windiest month. For the whole year in context, see Piratini's year-round climate.

Daytime high
19°
8th warmest
Overnight low
11°
5th coldest
Rainfall
100 mm
9 wet days
Daylight
10 h 24 min
8:17 AM – 6:41 PM
Cloud cover
62%
10th clearest
Wind
12 km/h
12th windiest
Solar energy
2.72 kWh/m²
Travel score
6.2
out of 10

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 Piratini reaches about 19°C in the afternoon and slips back to 11°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 15°C and 24°C. Set against its neighbours, May runs about 4°C cooler than April and about 2°C warmer than June.

10°20°30°151015202531
Avg high (°C)Avg low (°C)
12112
22112
32112
42112
52012
62012
72012
82012
92012
102011
112011
122011
132011
141911
151911
161911
171911
181911
191911
201911
211911
221810
231810
241810
251810
261810
271810
281810
291810
301810
311810

Piratini weather by month

How May compares with the rest of the year at a glance. May is the 8th-warmest and 12th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan28° / 18°13413.313.85.9
Feb27° / 18°12212.513.15.9
Mar26° / 17°10711.212.26.5
Apr23° / 14°12110.211.36.8
May19° / 11°100910.46.2
Jun17° / 1109.3105.4
Jul16° / 1189.510.25.2
Aug18° / 1189.410.96.0
Sep19° / 10°14510.611.85.9
Oct22° / 12°14411.712.86.3
Nov24° / 14°1109.813.66.9
Dec27° / 16°11511.2146.4

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 29% 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 58%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14555
24555
34555
44654
54654
64555
74555
84555
94555
104555
114555
124555
134555
144357
154456
164456
174357
184258
194159
204159
214060
223961
233961
243862
253862
263862
273862
283862
293862
303862
313862

Chance of precipitation in May

Any precipitation

Piratini gets around 100 mm of rain over 9 wet days in May, the driest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 29% and peaks near 32% on the wettest days.

0%10%20%30%40%151015202531
Rain chance (%)
132
231
331
431
530
630
730
829
929
1028
1128
1228
1328
1428
1528
1628
1728
1828
1929
2029
2129
2229
2328
2428
2528
2628
2728
2828
2928
3028
3127

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 59% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
14823236
24923225
35024225
45124214
55224204
65125204
75325193
85325193
95326183
105426182
115526172
125526172
135625172
145625172
155625172
165725162
175725162
185824162
195924152
206123142
216123142
226322132
236322132
246521122
256521122
266720112
276820102
286919102
29701992
30711892
31711892

Wind in May

Winds average 12 km/h in May, the calmest month.

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
112calm
212calm
312calm
412calm
512calm
612calm
712calm
812calm
912calm
1012calm
1112calm
1212calm
1312calm
1412calm
1512calm
1612calm
1712calm
1812calm
1912calm
2012calm
2112calm
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 48 min at the start of May to 10 h 06 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 8:06 AM to 8:26 AM, and sunset from 6:53 PM to 6:33 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
110.88:066:53
210.88:076:52
310.78:076:51
410.78:086:50
510.78:096:49
610.78:106:49
710.68:106:48
810.68:116:47
910.68:126:46
1010.58:126:45
1110.58:136:44
1210.58:146:44
1310.58:146:43
1410.58:156:42
1510.48:166:41
1610.48:176:41
1710.48:176:40
1810.48:186:40
1910.38:196:39
2010.38:196:38
2110.38:206:38
2210.38:216:37
2310.38:216:37
2410.28:226:36
2510.28:226:36
2610.28:236:35
2710.28:246:35
2810.28:246:34
2910.28:256:34
3010.18:266:34
3110.18:266:33

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 2.72 kWh/m².

For context, solar energy here swings from a low near 2.33 kWh/m² to a high of 6.62 kWh/m² in December across the year — May's 2.72 kWh/m² sits near the bottom.

01234151015202531
Solar energy (kWh/m²)Level
13.1Moderate
23.1Moderate
33.1Moderate
43.0Moderate
53.0Moderate
63.0Moderate
73.0Moderate
82.9Moderate
92.9Moderate
102.9Moderate
112.8Moderate
122.8Moderate
132.8Moderate
142.8Moderate
152.7Moderate
162.7Moderate
172.7Moderate
182.7Moderate
192.6Moderate
202.6Moderate
212.6Moderate
222.6Moderate
232.6Moderate
242.5Moderate
252.5Moderate
262.5Moderate
272.5Moderate
282.5Moderate
292.5Moderate
302.5Moderate
312.5Moderate
Planning a trip in May

Is May a good time to visit Piratini?

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

6.2
Sightseeing
6th-best month of the year
2.8
Beach & pool
8th-best month of the year

May is a reasonable time to visit Piratini for sightseeing.

What to pack for Piratini in May

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

In May, Piratini sees daytime highs around 19°C and nights near 11°C. Worth packing: rain gear. About 9 days see rain.

rain gear

UV index in Piratini 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 Piratini peaks around January 13 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 19 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 13UV 13Jun 19UV 3
UV index (midday)Level
Jan13Extreme
Feb12Extreme
Mar10Very high
Apr7High
May4Moderate
Jun3Moderate
Jul4Moderate
Aug5Moderate
Sep7Very high
Oct8Very high
Nov11Extreme
Dec13Extreme
Location & terrain

Where is Piratini?

Piratini sits at 31.4°S, 53.1°W, 361 m above sea level, in Brazil. The nearest listed city is Canguçu, 41 km away.

Topography around Piratini

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

Within 3 km, the terrain around Piratini has only modest variations in elevation — a maximum elevation change of 186 m around an average of 313 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 409 m; within 80 km, significant variations in elevation — a maximum elevation change of 507 m.

The land around Piratini is covered by grassland (49%) and trees (38%) within 3 km, trees (45%) and grassland (45%) within 16 km, and trees (50%) and grassland (35%) within 80 km.

3 km
186 m
16 km
409 m
80 km
507 m
treesgrasslandcroplandartificial surfaces
May weather nearby: Canguçu 41 km · Capão do Leão 68 km · Pelotas 81 km · Arroio Grande 88 km · Bagé 96 km · São Lourenço do Sul 107 km · Caçapava do Sul 110 km · Encruzilhada do Sul 115 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 Piratini (-31.4481°, -53.1042°, elevation 361 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).