Birigui weather in May

In May, Birigui sees average daytime highs of 27°C and overnight lows near 17°C, with 46 mm of rain across 5.5 wet days and about 11 hours of daylight. It is the 11th-warmest and 9th-wettest month of the year here.

Highs ease over the month, from about 29°C in the first days to 27°C by the end. The sky is clear or mostly clear about 51% of the time in May, and the air most often feels humid.

Daylight stretches from about 11 h 12 min at the start of May to 10 h 48 min by month's end. Set against the rest of the year, May is Birigui's 5th-clearest and 7th-windiest month. For the whole year in context, see Birigui's year-round climate.

Daytime high
27°
11th warmest
Overnight low
17°
4th coldest
Rainfall
46 mm
5.5 wet days
Daylight
11 hours
7:48 AM – 6:47 PM
Cloud cover
45%
5th clearest
Wind
9 km/h
7th windiest
Solar energy
4.19 kWh/m²
Travel score
7.2
out of 10

Birigui 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 29°C in the first days to 27°C by the end.

A typical May day in Birigui reaches about 27°C in the afternoon and slips back to 17°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 23°C and 31°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)
12919
22919
32919
42818
52818
62818
72818
82818
92818
102818
112818
122818
132718
142718
152717
162717
172717
182717
192717
202717
212717
222717
232717
242717
252717
262717
272717
282717
292717
302717
312717

How May really feels in Birigui

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.

Birigui weather by month

How May compares with the rest of the year at a glance. May is the 11th-warmest and 9th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan31° / 23°24422.313.23.4
Feb31° / 23°17518.712.73.5
Mar31° / 22°14117.912.24.0
Apr30° / 20°577.611.55.5
May27° / 17°465.5117.2
Jun27° / 16°293.510.77.8
Jul28° / 16°192.410.87.8
Aug30° / 17°202.811.36.3
Sep31° / 19°586.511.94.9
Oct32° / 21°10211.612.54.1
Nov31° / 21°14215.2133.8
Dec31° / 22°18220.313.33.5

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 51% 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 38%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
17030
26931
36931
46832
56634
66535
76436
86337
96238
106139
116040
126040
136040
145941
155842
165842
175941
185941
195941
205941
216040
226040
236040
246040
256040
266040
276139
286139
296139
306139
316238

Chance of precipitation in May

Any precipitation

Birigui gets around 46 mm of rain over 5.5 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 18% and peaks near 21% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
115
215
315
415
515
615
715
815
916
1016
1117
1217
1318
1418
1519
1620
1720
1820
1921
2021
2121
2221
2321
2421
2521
2620
2720
2820
2919
3019
3118

Humidity in May

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, May lands in the humid band about 40% of days. Sticky, muggy-or-worse air turns up on roughly 21% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
171840314
281941303
382042283
492042262
5102142252
6102243232
7102343222
8112343212
9112443201
10112444191
11122544191
12122544181
13122644181
14132643171
15132643171
16132742171
17142742171
18142741171
19142840170
20152839180
21162838180
22162838180
23172837180
24172936180
25172936180
26182935180
27182935180
28183035180
29183035170
30183035170
31173135160

Wind in May

Winds average 9 km/h in May.

Across May, daily wind ranges from about 9 km/h on the calmest days to 9 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
19calm
29calm
39calm
49calm
59calm
69calm
79calm
89calm
99calm
109calm
119calm
129calm
139calm
149calm
159calm
169calm
179calm
189calm
199calm
209calm
219calm
229calm
239calm
249calm
259calm
269calm
279calm
289calm
299calm
309calm
319calm

Sunrise & sunset in May

DaylightNight

Daylight runs from about 11 h 12 min at the start of May to 10 h 48 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 24 minutes over May. Sunrise moves from 7:42 AM to 7:54 AM, and sunset from 6:55 PM to 6:43 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.27:426:55
211.27:426:55
311.27:426:54
411.27:436:53
511.27:436:53
611.17:446:52
711.17:446:52
811.17:456:51
911.17:456:51
1011.17:456:50
1111.17:466:50
1211.07:466:49
1311.07:476:49
1411.07:476:48
1511.07:486:48
1611.07:486:47
1711.07:486:47
1811.07:496:46
1910.97:496:46
2010.97:506:46
2110.97:506:45
2210.97:516:45
2310.97:516:45
2410.97:516:45
2510.97:526:44
2610.97:526:44
2710.97:536:44
2810.87:536:44
2910.87:546:43
3010.87:546:43
3110.87:546:43

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 4.19 kWh/m².

For context, solar energy here swings from a low near 3.8 kWh/m² to a high of 6.12 kWh/m² in November across the year — May's 4.19 kWh/m² sits near the bottom.

024151015202531
Solar energy (kWh/m²)Level
14.7Bright
24.6Bright
34.6Bright
44.6Bright
54.5Bright
64.5Bright
74.5Bright
84.4Bright
94.4Bright
104.3Bright
114.3Bright
124.3Bright
134.2Bright
144.2Bright
154.2Bright
164.1Bright
174.1Bright
184.1Bright
194.0Bright
204.0Bright
214.0Bright
224.0Moderate
234.0Moderate
244.0Moderate
253.9Moderate
263.9Moderate
273.9Moderate
283.9Moderate
293.9Moderate
303.9Moderate
313.9Moderate
Planning a trip in May

Hazard calendar for Birigui

In seasonPeak

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

Birigui's monsoon runs November–March, when most of the year's rain falls.

Monsoon
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is May a good time to visit Birigui?

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

7.2
Sightseeing
3rd-best month of the year
7.6
Beach & pool
4th-best month of the year

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

What to pack for Birigui in May

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

In May, Birigui sees daytime highs around 27°C and nights near 17°C. Pack light clothes. About 6 days see rain.

light clothes

UV index in Birigui in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May peaks around 8 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Birigui peaks around January 22 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 23 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 22UV 15Jun 23UV 6
UV index (midday)Level
Jan15Extreme
Feb15Extreme
Mar13Extreme
Apr10Extreme
May8Very high
Jun6High
Jul6High
Aug8Very high
Sep9Very high
Oct10Extreme
Nov13Extreme
Dec13Extreme

Air quality in Birigui 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 Birigui is worst in September — around 21 µg/m³ PM2.5 (moderate), about 3.0× the cleanest month (November, 7 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodSep 1620 µg/m³Nov 227 µg/m³
PM2.5 (µg/m³)Level
Jan8Good
Feb8Good
Mar8Good
Apr9Good
May9Good
Jun9Good
Jul8Good
Aug13Moderate
Sep21Moderate
Oct13Moderate
Nov7Good
Dec7Good
Location & terrain

Where is Birigui?

Birigui sits at 21.3°S, 50.3°W, 409 m above sea level, in Brazil. The nearest listed city is Araçatuba, 13 km away.

Topography around Birigui

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

Within 3 km, the terrain around Birigui has only modest variations in elevation — a maximum elevation change of 107 m around an average of 418 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 164 m; within 80 km, significant variations in elevation — a maximum elevation change of 283 m.

The land around Birigui is covered by artificial surfaces (59%) within 3 km, cropland (58%) and grassland (24%) within 16 km, and cropland (57%) and grassland (25%) within 80 km.

3 km
107 m
16 km
164 m
80 km
283 m
treesgrasslandcroplandartificial surfaceswater
May weather nearby: Araçatuba 13 km · Penápolis 31 km · Guararapes 32 km · Buritama 32 km · Valparaíso 55 km · Promissão 57 km · Tupã 74 km · Lins 76 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 Birigui (-21.2886°, -50.34°, elevation 409 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).