Santo Antônio de Posse weather in May

In May, Santo Antônio de Posse sees average daytime highs of 25°C and overnight lows near 15°C, with 64 mm of rain across 6.3 wet days and about 10.9 hours of daylight. It is the 10th-warmest and 9th-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 46% of the time in May, and the air most often feels comfortable.

Daylight stretches from about 11 h 12 min at the start of May to 10 h 42 min by month's end. Set against the rest of the year, May is Santo Antônio de Posse's 5th-clearest and 7th-windiest month. For the whole year in context, see Santo Antônio de Posse's year-round climate.

Daytime high
25°
10th warmest
Overnight low
15°
4th coldest
Rainfall
64 mm
6.3 wet days
Daylight
10 h 54 min
7:36 AM – 6:31 PM
Cloud cover
47%
5th clearest
Wind
8 km/h
7th windiest
Solar energy
4.02 kWh/m²
Travel score
7.6
out of 10

Santo Antônio de Posse 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 27°C in the first days to 24°C by the end.

A typical May day in Santo Antônio de Posse reaches about 25°C in the afternoon and slips back to 15°C overnight — a 11°C spread between the day's warmth and the night's chill. On most days the high lands between 21°C and 29°C. Set against its neighbours, May runs about 3°C cooler than April and on par with June.

10°15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
12716
22716
32716
42616
52615
62615
72615
82615
92615
102615
112615
122615
132615
142515
152515
162515
172515
182515
192514
202514
212514
222514
232514
242514
252514
262514
272514
282514
292514
302414
312414

Santo Antônio de Posse weather by month

How May compares with the rest of the year at a glance. May is the 10th-warmest and 9th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan29° / 20°27522.313.23.8
Feb30° / 20°18818.612.83.9
Mar29° / 19°14917.612.24.6
Apr28° / 17°738.711.56.4
May25° / 15°646.310.97.6
Jun25° / 13°434.610.68.1
Jul25° / 13°39410.88.2
Aug27° / 14°334.111.27.9
Sep28° / 16°867.911.96.3
Oct29° / 18°13013.512.55.0
Nov29° / 19°18216.713.14.7
Dec29° / 20°22420.413.44.1

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 46% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 17% of May, with mostly cloudy or overcast conditions the remaining 37%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
17030
26931
36931
46832
56832
66634
76535
86337
96337
106238
116139
126040
136040
146040
155941
165941
175941
185941
196040
206040
216139
226139
236238
246238
256337
266337
276238
286337
296337
306337
316436

Chance of precipitation in May

Any precipitation

Santo Antônio de Posse gets around 64 mm of rain over 6.3 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 21% and peaks near 24% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
119
218
318
417
517
617
717
817
918
1018
1118
1219
1319
1420
1520
1621
1722
1822
1923
2023
2123
2223
2323
2424
2524
2623
2723
2823
2923
3022
3122

Humidity in May

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, May lands in the comfortable band about 42% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
11640359
21741348
31941337
42042336
52142325
62242314
72343314
82343304
92443303
102443303
112543293
122543293
132643282
142743282
152743272
162843272
172943272
182943262
193042262
203142262
213242251
223241251
233341241
243441241
253540241
263540231
273640231
283640231
293740221
303740221
313741211

Wind in May

Winds average 8 km/h in May.

Across May, daily wind ranges from about 7 km/h on the calmest days to 8 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
17calm
27calm
37calm
47calm
58calm
68calm
78calm
88calm
98calm
108calm
118calm
128calm
138calm
148calm
158calm
168calm
178calm
188calm
198calm
208calm
218calm
228calm
238calm
248calm
258calm
268calm
278calm
288calm
298calm
308calm
318calm

Sunrise & sunset in May

DaylightNight

Daylight runs from about 11 h 12 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 30 minutes over May. Sunrise moves from 7:30 AM to 7:43 AM, and sunset from 6:40 PM to 6:27 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.27:306:40
211.27:306:39
311.17:306:39
411.17:316:38
511.17:316:37
611.17:326:37
711.17:326:36
811.07:336:36
911.07:336:35
1011.07:346:34
1111.07:346:34
1211.07:356:33
1311.07:356:33
1410.97:356:32
1510.97:366:32
1610.97:366:31
1710.97:376:31
1810.97:376:31
1910.97:386:30
2010.97:386:30
2110.87:396:29
2210.87:396:29
2310.87:406:29
2410.87:406:29
2510.87:416:28
2610.87:416:28
2710.87:416:28
2810.87:426:27
2910.77:426:27
3010.77:436:27
3110.77:436:27

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 4.02 kWh/m².

For context, solar energy here swings from a low near 3.75 kWh/m² to a high of 6.01 kWh/m² in November across the year — May's 4.02 kWh/m² sits near the bottom.

024151015202531
Solar energy (kWh/m²)Level
14.5Bright
24.5Bright
34.4Bright
44.4Bright
54.4Bright
64.3Bright
74.3Bright
84.3Bright
94.2Bright
104.2Bright
114.1Bright
124.1Bright
134.1Bright
144.0Bright
154.0Moderate
164.0Moderate
173.9Moderate
183.9Moderate
193.9Moderate
203.9Moderate
213.8Moderate
223.8Moderate
233.8Moderate
243.8Moderate
253.8Moderate
263.8Moderate
273.8Moderate
283.8Moderate
293.8Moderate
303.7Moderate
313.7Moderate
Planning a trip in May

Hazard calendar for Santo Antônio de Posse

In seasonPeak

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

Santo Antônio de Posse's rainy season runs October–March, 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 Santo Antônio de Posse?

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

7.6
Sightseeing
4th-best month of the year
7.0
Beach & pool
6th-best month of the year

May is one of the better times to visit Santo Antônio de Posse for general sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Santo Antônio de Posse in May

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

In May, Santo Antônio de Posse sees daytime highs around 25°C and nights near 15°C. Worth packing: light clothes. About 6 days see rain.

light clothes

UV index in Santo Antônio de Posse 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 Santo Antônio de Posse peaks around January 20 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 12 at about 6 (high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highHighVery highExtremeJan 20UV 15Jul 12UV 6
UV index (midday)Level
Jan15Extreme
Feb15Extreme
Mar12Extreme
Apr9Very high
May7High
Jun6High
Jul6High
Aug8Very high
Sep8Very high
Oct11Extreme
Nov14Extreme
Dec14Extreme

Air quality in Santo Antônio de Posse 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 de Posse is worst in September — around 32 µg/m³ PM2.5 (moderate), about 2.1× the cleanest month (December, 16 µg/m³).

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecModerateSep 1032 µg/m³Dec 1516 µg/m³
PM2.5 (µg/m³)Level
Jan16Moderate
Feb17Moderate
Mar19Moderate
Apr22Moderate
May26Moderate
Jun28Moderate
Jul30Moderate
Aug31Moderate
Sep32Moderate
Oct22Moderate
Nov16Moderate
Dec16Moderate
Location & terrain

Where is Santo Antônio de Posse?

Santo Antônio de Posse sits at 22.6°S, 46.9°W, 669 m above sea level, in Brazil. The nearest listed city is Jaguariúna, 13 km away.

Topography around Santo Antônio de Posse

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

Within 3 km, the terrain around Santo Antônio de Posse has only modest variations in elevation — a maximum elevation change of 153 m around an average of 657 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 475 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,218 m.

The land around Santo Antônio de Posse is covered by cropland (33%), trees (28%) and grassland (26%) within 3 km, trees (33%), cropland (33%) and grassland (28%) within 16 km, and trees (35%), grassland (30%) and cropland (27%) within 80 km.

3 km
153 m
16 km
475 m
80 km
1,218 m
treesgrasslandcroplandartificial surfaceswater
May weather nearby: Jaguariúna 13 km · Terra Preta 14 km · Holambra 14 km · Amparo 19 km · Mogi Mirim 20 km · Itapira 21 km · Serra Negra 22 km · Artur Nogueira 26 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 de Posse (-22.6061°, -46.9194°, elevation 669 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).