Santa Bárbara d'Oeste weather in May

In May, Santa Bárbara d'Oeste sees average daytime highs of 26°C and overnight lows near 15°C, with 56 mm of rain across 6.2 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 25°C by the end. The sky is clear or mostly clear about 44% 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 Santa Bárbara d'Oeste's 6th-clearest and 7th-windiest month. For the whole year in context, see Santa Bárbara d'Oeste's year-round climate.

Daytime high
26°
10th warmest
Overnight low
15°
4th coldest
Rainfall
56 mm
6.2 wet days
Daylight
10 h 54 min
7:39 AM – 6:33 PM
Cloud cover
49%
6th clearest
Wind
8 km/h
7th windiest
Solar energy
3.92 kWh/m²
Travel score
7.5
out of 10

Santa Bárbara d'Oeste 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 25°C by the end.

A typical May day in Santa Bárbara d'Oeste reaches about 26°C in the afternoon and slips back to 15°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 22°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°35°151015202531
Avg high (°C)Avg low (°C)
12716
22716
32716
42716
52716
62716
72616
82616
92616
102616
112616
122615
132615
142615
152615
162515
172515
182515
192515
202515
212515
222515
232515
242515
252515
262514
272514
282514
292514
302514
312514

Santa Bárbara d'Oeste 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
Jan30° / 21°26622.513.23.6
Feb30° / 21°18718.612.83.8
Mar29° / 20°14717.112.24.5
Apr28° / 18°607.711.56.3
May26° / 15°566.210.97.5
Jun25° / 14°404.610.68.0
Jul25° / 13°35410.78.1
Aug27° / 14°32411.27.7
Sep29° / 16°708.111.96.1
Oct29° / 18°11512.612.55.0
Nov29° / 19°16015.413.14.6
Dec30° / 20°2082013.43.9

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 44% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 14% of May, with mostly cloudy or overcast conditions the remaining 41%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16634
26634
36535
46436
56337
66337
76139
86139
95941
105941
115743
125743
135743
145743
155743
165644
175545
185545
195644
205644
215644
225743
235743
245743
255743
265743
275743
285743
295842
305842
315842

Chance of precipitation in May

Any precipitation

Santa Bárbara d'Oeste gets around 56 mm of rain over 6.2 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 20% and peaks near 23% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%151015202531
Rain chance (%)
117
216
316
416
516
616
717
817
918
1018
1119
1219
1320
1420
1521
1621
1722
1822
1922
2023
2123
2223
2323
2423
2523
2623
2723
2823
2923
3023
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 40% of days. Sticky, muggy-or-worse air turns up on roughly 5% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
115353812
216363711
31737379
41837368
51938358
62039347
72139347
82140336
92141326
102241325
112242315
122242315
132243305
142243304
152244304
162344294
172344294
182344294
192344294
202444284
212443284
222542284
232642294
242741294
252740293
262839293
272939293
282938293
293038293
303138293
313137293

Wind in May

Winds average 8 km/h in May.

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

051015151015202531
Wind speed (km/h)Feels
18calm
28calm
38calm
48calm
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 7:32 AM to 7:45 AM, and sunset from 6:42 PM to 6:29 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.27:326:42
211.27:326:41
311.17:336:41
411.17:336:40
511.17:346:39
611.17:346:39
711.17:346:38
811.07:356:37
911.07:356:37
1011.07:366:36
1111.07:366:36
1211.07:376:35
1311.07:376:35
1410.97:386:34
1510.97:386:34
1610.97:396:33
1710.97:396:33
1810.97:406:32
1910.97:406:32
2010.97:406:32
2110.87:416:31
2210.87:416:31
2310.87:426:31
2410.87:426:30
2510.87:436:30
2610.87:436:30
2710.87:446:29
2810.87:446:29
2910.77:456:29
3010.77:456:29
3110.77:456:29

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 3.92 kWh/m².

For context, solar energy here swings from a low near 3.62 kWh/m² to a high of 6.02 kWh/m² in November across the year — May's 3.92 kWh/m² sits near the bottom.

012345151015202531
Solar energy (kWh/m²)Level
14.4Bright
24.4Bright
34.4Bright
44.3Bright
54.3Bright
64.3Bright
74.2Bright
84.2Bright
94.1Bright
104.1Bright
114.0Bright
124.0Bright
134.0Moderate
143.9Moderate
153.9Moderate
163.9Moderate
173.8Moderate
183.8Moderate
193.8Moderate
203.7Moderate
213.7Moderate
223.7Moderate
233.7Moderate
243.7Moderate
253.6Moderate
263.6Moderate
273.6Moderate
283.6Moderate
293.6Moderate
303.6Moderate
313.6Moderate
Planning a trip in May

Hazard calendar for Santa Bárbara d'Oeste

In seasonPeak

None of Santa Bárbara d'Oeste's seasonal hazards are active in May. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.

Santa Bárbara d'Oeste's rainy season runs November–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 Santa Bárbara d'Oeste?

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

7.5
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 Santa Bárbara d'Oeste for general sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Santa Bárbara d'Oeste in May

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

In May, Santa Bárbara d'Oeste sees daytime highs around 26°C and nights near 15°C. Worth packing: light clothes. About 6 days see rain.

light clothes

UV index in Santa Bárbara d'Oeste 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 Santa Bárbara d'Oeste peaks around January 20 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 20UV 15Jul 12UV 5
UV index (midday)Level
Jan15Extreme
Feb14Extreme
Mar12Extreme
Apr9Very high
May7High
Jun6High
Jul5High
Aug8Very high
Sep8Very high
Oct11Extreme
Nov13Extreme
Dec13Extreme

Air quality in Santa Bárbara d'Oeste 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 Santa Bárbara d'Oeste 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 Santa Bárbara d'Oeste?

Santa Bárbara d'Oeste sits at 22.8°S, 47.4°W, 565 m above sea level, in Brazil. The nearest listed city is Americana, 9.0 km away.

Topography around Santa Bárbara d'Oeste

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Santa Bárbara d'Oeste.

Within 3 km, the terrain around Santa Bárbara d'Oeste has only modest variations in elevation — a maximum elevation change of 100 m around an average of 560 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 173 m; within 80 km, large variations in elevation — a maximum elevation change of 845 m.

The land around Santa Bárbara d'Oeste is covered by artificial surfaces (48%) and trees (21%) within 3 km, cropland (45%) and trees (23%) within 16 km, and cropland (35%), trees (32%) and grassland (25%) within 80 km.

3 km
100 m
16 km
173 m
80 km
845 m
treesgrasslandcroplandartificial surfacesbare terrainwater
May weather nearby: Americana 9.0 km · Nova Odessa 12 km · Sumaré 17 km · Limeira 21 km · Iracemápolis 22 km · Rio das Pedras 22 km · Hortolândia 23 km · Monte Mor 24 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 Santa Bárbara d'Oeste (-22.7536°, -47.4136°, elevation 565 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).