Serrana weather in May

In May, Serrana sees average daytime highs of 26°C and overnight lows near 15°C, with 47 mm of rain across 5.7 wet days and about 11 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 49% 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 48 min by month's end. Set against the rest of the year, May is Serrana's 5th-clearest and 7th-windiest month. For the whole year in context, see Serrana's year-round climate.

Daytime high
26°
10th warmest
Overnight low
15°
4th coldest
Rainfall
47 mm
5.7 wet days
Daylight
11 hours
7:37 AM – 6:36 PM
Cloud cover
46%
5th clearest
Wind
7 km/h
7th windiest
Solar energy
4.2 kWh/m²
Travel score
7.5
out of 10

Serrana is central town of Serrana Municipality, 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 Serrana reaches about 26°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 22°C and 29°C. Set against its neighbours, May runs about 2°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
72716
82716
92716
102716
112616
122616
132616
142615
152615
162615
172615
182615
192615
202615
212615
222615
232615
242615
252615
262515
272515
282515
292514
302514
312514

Serrana 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°26923.513.13.6
Feb29° / 20°18818.812.73.9
Mar29° / 20°16618.912.14.4
Apr28° / 18°689.311.56.0
May26° / 15°475.7117.5
Jun26° / 14°273.110.78.2
Jul26° / 14°192.410.88.3
Aug28° / 15°19311.37.5
Sep30° / 18°697.411.95.6
Oct30° / 19°11613.212.54.6
Nov29° / 20°17217.5134.3
Dec29° / 20°23022.913.33.8

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 16% of May, with mostly cloudy or overcast conditions the remaining 36%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
17228
27129
37129
47030
57030
66832
76733
86634
96535
106337
116238
126238
136139
146040
156040
166040
176040
185941
196040
206139
216139
226238
236337
246436
256436
266535
276535
286535
296634
306634
316733

Chance of precipitation in May

Any precipitation

Serrana 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 19% and peaks near 21% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
119
218
318
417
517
616
716
816
916
1017
1117
1217
1317
1418
1518
1619
1720
1820
1921
2021
2121
2221
2321
2421
2521
2621
2720
2820
2919
3019
3118

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 39% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
112393613
213403612
314403510
41541359
51641358
61741357
71841346
81841356
91941355
102041355
112040355
122140354
132240344
142239344
152339344
162438344
172538344
182537343
192637343
202737333
212737333
222837323
232837323
242838313
252938313
262939303
272939292
282940292
292941282
302941272
313042272

Wind in May

Winds average 7 km/h in May.

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

0246810151015202531
Wind speed (km/h)Feels
17calm
27calm
37calm
47calm
57calm
67calm
77calm
87calm
97calm
107calm
117calm
127calm
137calm
147calm
157calm
167calm
177calm
187calm
197calm
207calm
217calm
227calm
237calm
247calm
257calm
267calm
277calm
287calm
297calm
307calm
317calm

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 7:31 AM to 7:43 AM, and sunset from 6:45 PM to 6:32 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.27:316:45
211.27:316:44
311.27:316:43
411.27:326:43
511.27:326:42
611.17:336:41
711.17:336:41
811.17:336:40
911.17:346:40
1011.17:346:39
1111.17:356:39
1211.17:356:38
1311.07:366:38
1411.07:366:37
1511.07:366:37
1611.07:376:36
1711.07:376:36
1811.07:386:36
1911.07:386:35
2010.97:396:35
2110.97:396:35
2210.97:396:34
2310.97:406:34
2410.97:406:34
2510.97:416:33
2610.97:416:33
2710.97:426:33
2810.87:426:33
2910.87:426:33
3010.87:436:32
3110.87:436:32

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 4.2 kWh/m².

For context, solar energy here swings from a low near 3.92 kWh/m² to a high of 5.99 kWh/m² in October across the year — May's 4.2 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
194.1Bright
204.0Bright
214.0Bright
224.0Bright
234.0Moderate
244.0Moderate
254.0Moderate
264.0Moderate
274.0Moderate
283.9Moderate
293.9Moderate
303.9Moderate
313.9Moderate
Planning a trip in May

Hazard calendar for Serrana

In seasonPeak

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

Serrana'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 Serrana?

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

7.5
Sightseeing
3rd-best month of the year
7.3
Beach & pool
5th-best month of the year

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

What to pack for Serrana in May

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

In May, Serrana 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 Serrana 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 Serrana peaks around January 21 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 22 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 22UV 7
UV index (midday)Level
Jan15Extreme
Feb15Extreme
Mar13Extreme
Apr10Very high
May8Very high
Jun7High
Jul7High
Aug9Very high
Sep10Very high
Oct11Extreme
Nov14Extreme
Dec14Extreme

Air quality in Serrana 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 Serrana is worst in September — around 43 µg/m³ PM2.5 (poor), about 5.2× the cleanest month (November, 8 µg/m³).

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateModerateGoodSep 1540 µg/m³Nov 229 µg/m³
PM2.5 (µg/m³)Level
Jan9Good
Feb10Good
Mar10Good
Apr11Good
May12Good
Jun11Good
Jul11Good
Aug20Moderate
Sep43Poor
Oct15Moderate
Nov8Good
Dec9Good
Location & terrain

Where is Serrana?

Serrana sits at 21.2°S, 47.6°W, 560 m above sea level, in Brazil. The nearest listed city is Cravinhos, 20 km away.

Topography around Serrana

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

Within 3 km, the terrain around Serrana has only modest variations in elevation — a maximum elevation change of 187 m around an average of 585 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 365 m; within 80 km, large variations in elevation — a maximum elevation change of 785 m.

The land around Serrana is covered by cropland (51%) and artificial surfaces (20%) within 3 km, cropland (59%) and trees (27%) within 16 km, and cropland (55%) and trees (31%) within 80 km.

3 km
187 m
16 km
365 m
80 km
785 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
May weather nearby: Cravinhos 20 km · Ribeirão Preto 23 km · Brodowski 25 km · Jardinópolis 28 km · Altinópolis 31 km · Cajuru 31 km · Batatais 36 km · Santa Rosa de Viterbo 38 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 Serrana (-21.2114°, -47.5956°, elevation 560 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).