Santo Antônio do Sudoeste weather in May

In May, Santo Antônio do Sudoeste sees average daytime highs of 22°C and overnight lows near 13°C, with 173 mm of rain across 9.8 wet days and about 10.7 hours of daylight. It is the 10th-warmest and 5th-wettest month of the year here.

Highs ease over the month, from about 24°C in the first days to 21°C by the end. The sky is clear or mostly clear about 42% 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 30 min by month's end. Set against the rest of the year, May is Santo Antônio do Sudoeste's 6th-clearest and 7th-windiest month. For the whole year in context, see Santo Antônio do Sudoeste's year-round climate.

Daytime high
22°
10th warmest
Overnight low
13°
4th coldest
Rainfall
173 mm
9.8 wet days
Daylight
10 h 42 min
8:09 AM – 6:53 PM
Cloud cover
53%
6th clearest
Wind
10 km/h
7th windiest
Solar energy
3.29 kWh/m²
Travel score
6.8
out of 10

Santo Antônio do Sudoeste 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 24°C in the first days to 21°C by the end.

A typical May day in Santo Antônio do Sudoeste 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 1°C warmer than June.

10°15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
12415
22415
32415
42415
52314
62314
72314
82314
92314
102314
112314
122214
132214
142214
152213
162213
172213
182213
192213
202213
212113
222113
232113
242113
252113
262113
272112
282112
292112
302112
312112

Santo Antônio do Sudoeste 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
Jan29° / 20°17417.413.44.4
Feb29° / 20°16316.212.94.6
Mar28° / 19°14113.812.25.6
Apr26° / 17°1509.911.46.8
May22° / 13°1739.810.76.8
Jun21° / 12°16910.210.46.5
Jul21° / 11°1358.710.56.9
Aug23° / 13°1107.411.17.6
Sep25° / 15°1731111.86.9
Oct26° / 17°2261412.66.0
Nov28° / 18°16512.913.35.8
Dec29° / 19°19516.613.64.7

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%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15545
25545
35545
45545
55446
65545
75446
85446
95347
105347
115347
125347
135347
145347
155347
165248
175248
185248
195149
205248
215248
225248
235149
245248
255248
265248
275248
285248
295248
305248
315248

Chance of precipitation in May

Any precipitation

Santo Antônio do Sudoeste gets around 173 mm of rain over 9.8 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 31% and peaks near 34% on the wettest days.

0%10%20%30%40%151015202531
Rain chance (%)
129
229
328
428
528
628
728
828
929
1029
1129
1229
1329
1429
1530
1630
1731
1831
1932
2032
2133
2233
2333
2434
2534
2634
2734
2834
2934
3034
3134

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 38% of days. Sticky, muggy-or-worse air turns up on roughly 7% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
123283514
224283513
326283512
427273411
529273410
630273410
73126339
83226339
93426328
103526328
113626317
123627307
133727306
143727296
153828286
163928286
173929275
184029265
194129255
204129245
214229235
224329235
234429225
244529215
254628215
264728215
274727215
284827205
294926205
304926205
314925215

Wind in May

Winds average 10 km/h in May.

Across May, daily wind ranges from about 9 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
19calm
29calm
39calm
49calm
59calm
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 30 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 30 minutes over May. Sunrise moves from 8:01 AM to 8:17 AM, and sunset from 7:03 PM to 6:47 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.08:017:03
211.08:027:02
311.08:027:01
411.08:037:01
510.98:037:00
610.98:046:59
710.98:046:58
810.98:056:58
910.98:056:57
1010.88:066:56
1110.88:076:56
1210.88:076:55
1310.88:086:55
1410.88:086:54
1510.78:096:53
1610.78:096:53
1710.78:106:52
1810.78:106:52
1910.78:116:51
2010.78:126:51
2110.68:126:51
2210.68:136:50
2310.68:136:50
2410.68:146:49
2510.68:146:49
2610.68:156:49
2710.68:156:48
2810.58:166:48
2910.58:166:48
3010.58:176:48
3110.58:176:47

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 3.29 kWh/m².

For context, solar energy here swings from a low near 2.85 kWh/m² to a high of 6.27 kWh/m² in December across the year — May's 3.29 kWh/m² sits near the bottom.

01234151015202531
Solar energy (kWh/m²)Level
13.8Moderate
23.8Moderate
33.7Moderate
43.7Moderate
53.7Moderate
63.6Moderate
73.6Moderate
83.6Moderate
93.5Moderate
103.5Moderate
113.5Moderate
123.4Moderate
133.4Moderate
143.4Moderate
153.3Moderate
163.3Moderate
173.3Moderate
183.2Moderate
193.2Moderate
203.2Moderate
213.1Moderate
223.1Moderate
233.1Moderate
243.0Moderate
253.0Moderate
263.0Moderate
273.0Moderate
283.0Moderate
293.0Moderate
303.0Moderate
312.9Moderate
Planning a trip in May

Is May a good time to visit Santo Antônio do Sudoeste?

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

6.8
Sightseeing
4th-best month of the year
4.8
Beach & pool
10th-best month of the year

May is a reasonable time to visit Santo Antônio do Sudoeste for sightseeing.

What to pack for Santo Antônio do Sudoeste in May

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

In May, Santo Antônio do Sudoeste sees daytime highs around 22°C and nights near 13°C. Worth packing: light clothes and rain gear. About 10 days see rain.

light clothesrain gear

UV index in Santo Antônio do Sudoeste 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 Santo Antônio do Sudoeste peaks around January 22 at about 15 (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 22UV 15Jul 10UV 5
UV index (midday)Level
Jan15Extreme
Feb15Extreme
Mar12Extreme
Apr9Very high
May6High
Jun5Moderate
Jul5Moderate
Aug6High
Sep7High
Oct10Very high
Nov12Extreme
Dec13Extreme

Air quality in Santo Antônio do Sudoeste 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 Santo Antônio do Sudoeste is worst in September — around 24 µg/m³ PM2.5 (moderate), about 4.1× the cleanest month (March, 6 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodSep 1023 µg/m³Mar 176 µg/m³
PM2.5 (µg/m³)Level
Jan7Good
Feb7Good
Mar6Good
Apr7Good
May6Good
Jun6Good
Jul10Good
Aug22Moderate
Sep24Moderate
Oct12Good
Nov9Good
Dec7Good
Location & terrain

Where is Santo Antônio do Sudoeste?

Santo Antônio do Sudoeste sits at 26.1°S, 53.7°W, 544 m above sea level, in Brazil. The nearest listed city is Dionísio Cerqueira, 22 km away.

Topography around Santo Antônio do Sudoeste

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Santo Antônio do Sudoeste.

Within 3 km, the terrain around Santo Antônio do Sudoeste has only modest variations in elevation — a maximum elevation change of 166 m around an average of 555 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 435 m; within 80 km, large variations in elevation — a maximum elevation change of 810 m.

The land around Santo Antônio do Sudoeste is covered by trees (43%) and cropland (22%) within 3 km, trees (55%) and cropland (30%) within 16 km, and trees (67%) within 80 km.

3 km
166 m
16 km
435 m
80 km
810 m
treesgrasslandcroplandartificial surfaceswater
May weather nearby: Dionísio Cerqueira 22 km · Ampére 31 km · Realeza 39 km · Capanema 45 km · Salto do Lontra 53 km · Francisco Beltrão 67 km · Marmeleiro 70 km · San Pedro 72 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 Santo Antônio do Sudoeste (-26.0736°, -53.7253°, elevation 544 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).