Piraju weather in May

In May, Piraju sees average daytime highs of 24°C and overnight lows near 16°C, with 74 mm of rain across 7.1 wet days and about 10.9 hours of daylight. It is the 10th-warmest and 8th-wettest month of the year here.

Highs ease over the month, from about 26°C in the first days to 23°C by the end. The sky is clear or mostly clear about 39% 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 Piraju's 6th-clearest and 7th-windiest month. For the whole year in context, see Piraju's year-round climate.

Daytime high
24°
10th warmest
Overnight low
16°
4th coldest
Rainfall
74 mm
7.1 wet days
Daylight
10 h 54 min
7:47 AM – 6:40 PM
Cloud cover
54%
6th clearest
Wind
9 km/h
7th windiest
Solar energy
3.7 kWh/m²
Travel score
7.4
out of 10

Piraju 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 26°C in the first days to 23°C by the end.

A typical May day in Piraju reaches about 24°C in the afternoon and slips back to 16°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 20°C and 28°C. Set against its neighbours, May runs about 3°C cooler than April and about 1°C warmer than June.

10°15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
12617
22617
32617
42617
52516
62516
72516
82516
92516
102516
112516
122516
132416
142416
152416
162416
172415
182415
192415
202415
212415
222415
232315
242315
252315
262315
272315
282315
292315
302315
312315

Piraju weather by month

How May compares with the rest of the year at a glance. May is the 10th-warmest and 8th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan29° / 21°23621.513.34.0
Feb29° / 21°17818.512.84.1
Mar29° / 20°12615.912.24.9
Apr27° / 18°667.911.56.8
May24° / 16°747.110.97.4
Jun23° / 14°59610.67.7
Jul24° / 13°494.710.78.1
Aug25° / 14°484.711.28.0
Sep27° / 16°928.311.96.9
Oct28° / 17°12112.112.55.8
Nov28° / 18°13613.813.15.2
Dec29° / 20°17018.213.44.4

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 39% 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 47%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16040
26040
35941
45941
55842
65743
75644
85446
95347
105347
115248
125149
135149
145149
155050
164951
174951
185050
194951
205050
215050
225050
235149
245149
255149
265149
275149
285248
295347
305347
315347

Chance of precipitation in May

Any precipitation

Piraju gets around 74 mm of rain over 7.1 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 23% and peaks near 28% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%40%151015202531
Rain chance (%)
119
219
318
418
519
619
719
819
920
1020
1121
1221
1322
1422
1523
1624
1724
1825
1925
2026
2126
2226
2327
2427
2527
2627
2728
2828
2928
3027
3127

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 38% of days. Sticky, muggy-or-worse air turns up on roughly 6% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
111314315
212314314
313324212
414334211
515334210
61634419
71634418
81735418
91736407
101836407
111837396
121838385
131839385
141940375
151941364
161942354
171942354
181943344
192043334
202043324
212143324
222242314
232342315
242441305
252541305
262640305
272639305
282739295
292838295
302937295
312937295

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 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 7:40 AM to 7:54 AM, and sunset from 6:49 PM to 6:36 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.27:406:49
211.17:416:49
311.17:416:48
411.17:426:47
511.17:426:47
611.17:426:46
711.07:436:45
811.07:436:45
911.07:446:44
1011.07:446:43
1111.07:456:43
1211.07:456:42
1310.97:466:42
1410.97:466:41
1510.97:476:41
1610.97:476:40
1710.97:486:40
1810.97:486:39
1910.87:496:39
2010.87:496:39
2110.87:506:38
2210.87:506:38
2310.87:516:38
2410.87:516:37
2510.87:516:37
2610.77:526:37
2710.77:526:36
2810.77:536:36
2910.77:536:36
3010.77:546:36
3110.77:546:36

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 3.7 kWh/m².

For context, solar energy here swings from a low near 3.33 kWh/m² to a high of 5.91 kWh/m² in December across the year — May's 3.7 kWh/m² sits near the bottom.

012345151015202531
Solar energy (kWh/m²)Level
14.2Bright
24.2Bright
34.2Bright
44.1Bright
54.1Bright
64.0Bright
74.0Bright
84.0Moderate
93.9Moderate
103.9Moderate
113.8Moderate
123.8Moderate
133.8Moderate
143.7Moderate
153.7Moderate
163.6Moderate
173.6Moderate
183.6Moderate
193.5Moderate
203.5Moderate
213.5Moderate
223.5Moderate
233.5Moderate
243.4Moderate
253.4Moderate
263.4Moderate
273.4Moderate
283.4Moderate
293.4Moderate
303.4Moderate
313.4Moderate
Planning a trip in May

Hazard calendar for Piraju

In seasonPeak

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

Piraju'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 Piraju?

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

7.4
Sightseeing
4th-best month of the year
6.4
Beach & pool
5th-best month of the year

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

What to pack for Piraju in May

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

In May, Piraju sees daytime highs around 24°C and nights near 16°C. Worth packing: light clothes. About 7 days see rain.

light clothes

UV index in Piraju 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 Piraju peaks around January 21 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 21UV 15Jul 12UV 6
UV index (midday)Level
Jan15Extreme
Feb15Extreme
Mar12Extreme
Apr9Very high
May7High
Jun6High
Jul5High
Aug8Very high
Sep8Very high
Oct11Extreme
Nov13Extreme
Dec14Extreme

Air quality in Piraju 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 Piraju is worst in September — around 16 µg/m³ PM2.5 (moderate), about 2.4× the cleanest month (March, 7 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodSep 1216 µg/m³Mar 187 µg/m³
PM2.5 (µg/m³)Level
Jan8Good
Feb7Good
Mar7Good
Apr7Good
May8Good
Jun9Good
Jul9Good
Aug15Moderate
Sep16Moderate
Oct11Good
Nov7Good
Dec7Good
Location & terrain

Where is Piraju?

Piraju sits at 23.2°S, 49.4°W, 561 m above sea level, in Brazil. The nearest listed city is Fartura, 25 km away.

Topography around Piraju

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

Within 3 km, the terrain around Piraju has significant variations in elevation — a maximum elevation change of 259 m around an average of 580 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 441 m; within 80 km, significant variations in elevation — a maximum elevation change of 597 m.

The land around Piraju is covered by trees (34%) and grassland (33%) within 3 km, cropland (39%), trees (33%) and grassland (23%) within 16 km, and cropland (43%), trees (29%) and grassland (23%) within 80 km.

3 km
259 m
16 km
441 m
80 km
597 m
treesgrasslandcroplandartificial surfaceswater
May weather nearby: Fartura 25 km · Cerqueira César 28 km · Itaí 39 km · Taquarituba 40 km · Santa Cruz do Rio Pardo 41 km · Carlópolis 43 km · Avaré 48 km · Ourinhos 55 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 Piraju (-23.1936°, -49.3839°, elevation 561 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).