Castilho weather in May

In May, Castilho sees average daytime highs of 28°C and overnight lows near 18°C, with 47 mm of rain across 5.7 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 49% 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 Castilho's 5th-clearest and 7th-windiest month. For the whole year in context, see Castilho's year-round climate.

Daytime high
28°
11th warmest
Overnight low
18°
4th coldest
Rainfall
47 mm
5.7 wet days
Daylight
11 hours
7:52 AM – 6:52 PM
Cloud cover
45%
5th clearest
Wind
8 km/h
7th windiest
Solar energy
4.22 kWh/m²
Travel score
7.0
out of 10

Castilho 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 Castilho reaches about 28°C in the afternoon and slips back to 18°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 24°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)
12920
22920
32919
42919
52919
62919
72919
82919
92819
102819
112819
122819
132818
142818
152818
162818
172818
182818
192718
202718
212718
222718
232718
242718
252718
262718
272718
282717
292717
302717
312717

How May really feels in Castilho

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.

Castilho 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°23021.913.13.2
Feb31° / 23°18819.212.73.2
Mar31° / 23°15717.812.13.7
Apr30° / 21°617.911.55.2
May28° / 18°475.7117.0
Jun28° / 17°263.510.87.7
Jul28° / 17°152.210.97.5
Aug31° / 18°212.911.35.8
Sep32° / 20°596.811.94.5
Oct32° / 22°10612.412.53.7
Nov32° / 23°14115.5133.5
Dec31° / 23°18920.613.23.2

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 49% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 13% of May, with mostly cloudy or overcast conditions the remaining 38%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
17030
27030
36931
46832
56733
66634
76535
86337
96238
106139
116040
126040
136040
145941
155842
165842
175842
185842
195842
205941
215941
225941
236040
246040
256139
266040
276040
286139
296139
306139
316139

Chance of precipitation in May

Any precipitation

Castilho gets around 47 mm of rain over 5.7 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 22% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
115
214
314
414
514
614
715
815
915
1016
1116
1217
1317
1418
1518
1619
1720
1820
1921
2021
2121
2221
2322
2422
2521
2621
2721
2820
2920
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 36% of days. Sticky, muggy-or-worse air turns up on roughly 33% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1610353910
271136379
371137368
481238357
581338346
691339336
791440335
891540324
991640314
10101640304
11101740303
12101840293
13101840293
14101940292
15101940292
16112039282
17112138282
18112138282
19112237282
20122236282
21122335281
22132334281
23132434281
24132433281
25142532281
26142532281
27142531281
28142631281
29142631281
30142731281
31132731271

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 9 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
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 7:46 AM to 7:58 AM, and sunset from 7:01 PM to 6:48 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.27:467:01
211.27:467:00
311.27:476:59
411.27:476:59
511.27:476:58
611.27:486:57
711.17:486:57
811.17:496:56
911.17:496:56
1011.17:496:55
1111.17:506:55
1211.17:506:54
1311.17:516:54
1411.07:516:53
1511.07:516:53
1611.07:526:52
1711.07:526:52
1811.07:536:52
1911.07:536:51
2011.07:546:51
2110.97:546:51
2210.97:546:50
2310.97:556:50
2410.97:556:50
2510.97:566:50
2610.97:566:49
2710.97:576:49
2810.97:576:49
2910.97:576:49
3010.87:586:49
3110.87:586:48

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 4.22 kWh/m².

For context, solar energy here swings from a low near 3.84 kWh/m² to a high of 6.22 kWh/m² in November across the year — May's 4.22 kWh/m² sits near the bottom.

024151015202531
Solar energy (kWh/m²)Level
14.7Bright
24.7Bright
34.7Bright
44.6Bright
54.6Bright
64.5Bright
74.5Bright
84.5Bright
94.4Bright
104.4Bright
114.3Bright
124.3Bright
134.3Bright
144.2Bright
154.2Bright
164.2Bright
174.1Bright
184.1Bright
194.1Bright
204.1Bright
214.0Bright
224.0Bright
234.0Moderate
244.0Moderate
254.0Moderate
263.9Moderate
273.9Moderate
283.9Moderate
293.9Moderate
303.9Moderate
313.9Moderate
Planning a trip in May

Hazard calendar for Castilho

In seasonPeak

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

Castilho's monsoon runs October–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 Castilho?

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

7.0
Sightseeing
3rd-best month of the year
7.7
Beach & pool
4th-best month of the year

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

What to pack for Castilho in May

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

In May, Castilho sees daytime highs around 28°C and nights near 18°C. Pack light clothes. About 6 days see rain.

light clothes

UV index in Castilho 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 Castilho peaks around January 21 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 23 at about 7 (high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highHighVery highExtremeJan 21UV 15Jun 23UV 7
UV index (midday)Level
Jan15Extreme
Feb15Extreme
Mar13Extreme
Apr10Extreme
May8Very high
Jun7High
Jul7High
Aug8Very high
Sep7Very high
Oct10Extreme
Nov12Extreme
Dec13Extreme

Air quality in Castilho 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 Castilho is worst in September — around 20 µg/m³ PM2.5 (moderate), about 3.4× the cleanest month (July, 6 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodSep 1719 µg/m³Jul 106 µg/m³
PM2.5 (µg/m³)Level
Jan7Good
Feb7Good
Mar6Good
Apr6Good
May7Good
Jun6Good
Jul6Good
Aug10Good
Sep20Moderate
Oct12Moderate
Nov6Good
Dec6Good
Location & terrain

Where is Castilho?

Castilho sits at 20.9°S, 51.5°W, 382 m above sea level, in Brazil. The nearest listed city is Andradina, 12 km away.

Topography around Castilho

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

Within 3 km, the terrain around Castilho has only modest variations in elevation — a maximum elevation change of 115 m around an average of 368 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 181 m; within 80 km, significant variations in elevation — a maximum elevation change of 260 m.

The land around Castilho is covered by cropland (52%) and grassland (31%) within 3 km, cropland (50%) and grassland (32%) within 16 km, and cropland (37%), grassland (31%) and trees (24%) within 80 km.

3 km
115 m
16 km
181 m
80 km
260 m
treesgrasslandcroplandartificial surfaceswater
May weather nearby: Andradina 12 km · Três Lagoas 24 km · Pereira Barreto 47 km · Mirandópolis 49 km · Ilha Solteira 51 km · Tupi Paulista 57 km · Dracena 68 km · Junqueirópolis 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 Castilho (-20.8722°, -51.4875°, elevation 382 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).