Ribeirão Branco weather in May

In May, Ribeirão Branco sees average daytime highs of 21°C and overnight lows near 13°C, with 83 mm of rain across 10.1 wet days and about 10.8 hours of daylight. It is the 10th-warmest and 8th-wettest month of the year here.

Highs ease over the month, from about 23°C in the first days to 20°C by the end. The sky is clear or mostly clear about 28% of the time in May, and the air most often feels comfortable.

Daylight stretches from about 11 h 06 min at the start of May to 10 h 36 min by month's end. Set against the rest of the year, May is Ribeirão Branco's 4th-clearest and 10th-windiest month. For the whole year in context, see Ribeirão Branco's year-round climate.

Daytime high
21°
10th warmest
Overnight low
13°
5th coldest
Rainfall
83 mm
10.1 wet days
Daylight
10 h 48 min
7:46 AM – 6:36 PM
Cloud cover
62%
4th clearest
Wind
8 km/h
10th windiest
Solar energy
3.31 kWh/m²
Travel score
6.5
out of 10

Ribeirão Branco 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 23°C in the first days to 20°C by the end.

A typical May day in Ribeirão Branco reaches about 21°C in the afternoon and slips back to 13°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 17°C and 25°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)
12314
22314
32314
42314
52314
62214
72213
82213
92213
102213
112213
122213
132213
142113
152113
162113
172113
182113
192113
202113
212112
222112
232112
242112
252112
262112
272012
282012
292012
302012
312012

Ribeirão Branco 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
Jan27° / 18°28025.313.34.2
Feb27° / 18°21222.312.84.2
Mar26° / 18°16321.312.24.9
Apr24° / 16°7511.411.56.5
May21° / 13°8310.110.86.5
Jun21° / 12°797.510.56.8
Jul20° / 11°786.610.76.9
Aug22° / 11°566.911.27.2
Sep23° / 13°1181111.86.5
Oct24° / 15°13615.512.65.8
Nov25° / 16°14517.613.25.4
Dec26° / 17°19821.313.54.8

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 28% 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 58%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
14654
24654
34654
44555
54555
64357
74357
84258
94258
104060
113961
123961
133862
143862
153862
163862
173862
183862
193961
204060
214159
224159
234258
244357
254258
264357
274555
284555
294555
304654
314654

Chance of precipitation in May

Any precipitation

Ribeirão Branco gets around 83 mm of rain over 10.1 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 32% and peaks near 34% on the wettest days.

0%10%20%30%40%151015202531
Rain chance (%)
131
231
331
431
531
631
731
831
931
1031
1131
1232
1332
1432
1532
1633
1733
1833
1934
2034
2134
2234
2334
2434
2534
2633
2733
2833
2933
3032
3132

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 42% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
12041344
22142344
32242333
42442323
52542312
62643302
72743282
82843271
92944261
103044251
113044241
123145231
133145221
143245221
153346211
163346201
173446191
183546191
193645181
203744181
213844171
223943171
234142171
244241161
254340161
264439161
274538151
284638151
294737151
304837141
314936141

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
168calm
178calm
188calm
198calm
208calm
219calm
229calm
239calm
248calm
258calm
268calm
278calm
288calm
298calm
308calm
318calm

Sunrise & sunset in May

DaylightNight

Daylight runs from about 11 h 06 min at the start of May to 10 h 36 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 7:39 AM to 7:54 AM, and sunset from 6:46 PM to 6:31 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.17:396:46
211.17:396:45
311.17:406:44
411.07:406:43
511.07:416:43
611.07:416:42
711.07:426:41
811.07:426:41
911.07:436:40
1010.97:436:39
1110.97:446:39
1210.97:446:38
1310.97:456:38
1410.97:456:37
1510.87:466:37
1610.87:466:36
1710.87:476:36
1810.87:476:35
1910.87:486:35
2010.87:486:34
2110.87:496:34
2210.77:496:34
2310.77:506:33
2410.77:506:33
2510.77:516:33
2610.77:516:32
2710.77:526:32
2810.77:526:32
2910.67:536:32
3010.67:536:31
3110.67:546:31

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 3.31 kWh/m².

For context, solar energy here swings from a low near 3.03 kWh/m² to a high of 5.48 kWh/m² in December across the year — May's 3.31 kWh/m² sits near the bottom.

01234151015202531
Solar energy (kWh/m²)Level
13.8Moderate
23.8Moderate
33.7Moderate
43.7Moderate
53.7Moderate
63.6Moderate
73.6Moderate
83.5Moderate
93.5Moderate
103.5Moderate
113.4Moderate
123.4Moderate
133.4Moderate
143.3Moderate
153.3Moderate
163.3Moderate
173.2Moderate
183.2Moderate
193.2Moderate
203.1Moderate
213.1Moderate
223.1Moderate
233.1Moderate
243.1Moderate
253.1Moderate
263.1Moderate
273.1Moderate
283.1Moderate
293.0Moderate
303.0Moderate
313.0Moderate
Planning a trip in May

Hazard calendar for Ribeirão Branco

In seasonPeak

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

Ribeirão Branco'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 Ribeirão Branco?

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

6.5
Sightseeing
4th-best month of the year
4.2
Beach & pool
9th-best month of the year

May is a reasonable time to visit Ribeirão Branco for sightseeing.

What to pack for Ribeirão Branco in May

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

In May, Ribeirão Branco sees daytime highs around 21°C and nights near 13°C. Worth packing: rain gear. About 10 days see rain.

rain gear

UV index in Ribeirão Branco 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 Ribeirão Branco peaks around January 19 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 11 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 19UV 15Jul 11UV 5
UV index (midday)Level
Jan15Extreme
Feb15Extreme
Mar12Extreme
Apr9Very high
May7High
Jun6High
Jul5High
Aug7Very high
Sep8Very high
Oct11Extreme
Nov13Extreme
Dec14Extreme
Location & terrain

Where is Ribeirão Branco?

Ribeirão Branco sits at 24.2°S, 48.8°W, 873 m above sea level, in Brazil. The nearest listed city is Guapiara, 24 km away.

Topography around Ribeirão Branco

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

Within 3 km, the terrain around Ribeirão Branco has only modest variations in elevation — a maximum elevation change of 153 m around an average of 855 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 437 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,316 m.

The land around Ribeirão Branco is covered by trees (52%) and grassland (30%) within 3 km, trees (73%) within 16 km, and trees (71%) within 80 km.

3 km
153 m
16 km
437 m
80 km
1,316 m
treesgrasslandcroplandartificial surfaces
May weather nearby: Guapiara 24 km · Itapeva 29 km · Apiaí 33 km · Capão Bonito 49 km · Buri 50 km · Itaberá 55 km · Itararé 59 km · Sengés 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 Ribeirão Branco (-24.2208°, -48.7656°, elevation 873 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. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).