Visconde do Rio Branco weather in May

In May, Visconde do Rio Branco sees average daytime highs of 25°C and overnight lows near 15°C, with 41 mm of rain across 6.8 wet days and about 11 hours of daylight. It is the 10th-warmest and 9th-wettest month of the year here.

Day-to-day highs hold fairly steady near 25°C through the month. The sky is clear or mostly clear about 28% 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 Visconde do Rio Branco's 5th-clearest and 9th-windiest month. For the whole year in context, see Visconde do Rio Branco's year-round climate.

Daytime high
25°
10th warmest
Overnight low
15°
4th coldest
Rainfall
41 mm
6.8 wet days
Daylight
11 hours
7:18 AM – 6:18 PM
Cloud cover
58%
5th clearest
Wind
6 km/h
9th windiest
Solar energy
3.67 kWh/m²
Travel score
7.4
out of 10

Visconde do Rio 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

Day-to-day highs hold fairly steady near 25°C through the month.

A typical May day in Visconde do Rio Branco reaches about 25°C in the afternoon and slips back to 15°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 21°C and 28°C. Set against its neighbours, May runs about 2°C cooler than April and on par with June.

10°15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
12616
22616
32616
42516
52516
62516
72516
82516
92516
102516
112515
122515
132515
142515
152515
162415
172415
182415
192415
202415
212415
222415
232415
242415
252415
262415
272415
282415
292415
302415
312415

Visconde do Rio Branco 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°2361913.14.3
Feb29° / 20°14814.512.74.5
Mar28° / 19°1731812.14.8
Apr27° / 18°8211.611.56.3
May25° / 15°416.8117.4
Jun24° / 14°153.410.78.2
Jul24° / 13°153.710.98.2
Aug25° / 14°213.911.38.0
Sep26° / 16°668.311.96.9
Oct27° / 18°11412.812.55.9
Nov27° / 19°23919.1134.9
Dec28° / 20°26121.113.34.5

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 22% of May, with mostly cloudy or overcast conditions the remaining 51%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15743
25644
35644
45446
55446
65347
75248
85149
95050
104951
114753
124753
134555
144555
154456
164456
174456
184555
194555
204654
214654
224654
234852
244852
254951
265050
275149
285248
295347
305446
315545

Chance of precipitation in May

Any precipitation

Visconde do Rio Branco gets around 41 mm of rain over 6.8 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 25% on the wettest days.

0%10%20%30%40%151015202531
Rain chance (%)
125
224
323
423
522
621
721
821
921
1021
1122
1222
1323
1423
1524
1624
1725
1825
1925
2025
2125
2225
2325
2425
2524
2624
2723
2822
2922
3021
3120

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 48% of days. Sticky, muggy-or-worse air turns up on roughly 9% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
12254825
23264923
33274921
44294918
54305017
64315015
75325014
85325013
95335012
106345011
116345010
12634519
13734509
14734518
15735508
16835507
17835507
18835507
19936496
20936496
21937486
221037485
231038475
241038475
251139464
261140454
271140454
281241443
291241433
301342423
311342423

Wind in May

Winds average 6 km/h in May.

Across May, daily wind ranges from about 6 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
16calm
26calm
36calm
46calm
56calm
66calm
76calm
86calm
96calm
106calm
116calm
126calm
136calm
146calm
156calm
166calm
176calm
186calm
196calm
206calm
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 7:11 AM to 7:24 AM, and sunset from 6:26 PM to 6:14 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.27:116:26
211.27:126:25
311.27:126:24
411.27:136:24
511.27:136:23
611.27:136:23
711.17:146:22
811.17:146:22
911.17:156:21
1011.17:156:20
1111.17:156:20
1211.17:166:19
1311.07:166:19
1411.07:176:19
1511.07:176:18
1611.07:186:18
1711.07:186:17
1811.07:186:17
1911.07:196:17
2010.97:196:16
2110.97:206:16
2210.97:206:16
2310.97:216:15
2410.97:216:15
2510.97:216:15
2610.97:226:14
2710.97:226:14
2810.97:236:14
2910.87:236:14
3010.87:246:14
3110.87:246:14

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 3.67 kWh/m².

For context, solar energy here swings from a low near 3.49 kWh/m² to a high of 5.92 kWh/m² in February across the year — May's 3.67 kWh/m² sits near the bottom.

012345151015202531
Solar energy (kWh/m²)Level
14.0Bright
24.0Bright
34.0Bright
44.0Moderate
54.0Moderate
63.9Moderate
73.9Moderate
83.9Moderate
93.8Moderate
103.8Moderate
113.8Moderate
123.7Moderate
133.7Moderate
143.6Moderate
153.6Moderate
163.6Moderate
173.6Moderate
183.5Moderate
193.5Moderate
203.5Moderate
213.5Moderate
223.5Moderate
233.5Moderate
243.5Moderate
253.5Moderate
263.5Moderate
273.5Moderate
283.5Moderate
293.5Moderate
303.5Moderate
313.5Moderate
Planning a trip in May

Hazard calendar for Visconde do Rio Branco

In seasonPeak

None of Visconde do Rio 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.

Visconde do Rio Branco'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 Visconde do Rio Branco?

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
6.5
Beach & pool
5th-best month of the year

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

What to pack for Visconde do Rio Branco in May

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

In May, Visconde do Rio Branco sees daytime highs around 25°C and nights near 15°C. Worth packing: light clothes. About 7 days see rain.

light clothes

UV index in Visconde do Rio 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 Visconde do Rio Branco peaks around January 24 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 22 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 24UV 15Jun 22UV 6
UV index (midday)Level
Jan15Extreme
Feb15Extreme
Mar13Extreme
Apr10Very high
May7Very high
Jun6High
Jul7High
Aug8Very high
Sep9Very high
Oct12Extreme
Nov14Extreme
Dec14Extreme

Air quality in Visconde do Rio Branco 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 Visconde do Rio Branco is worst in September — around 15 µg/m³ PM2.5 (moderate), about 1.8× the cleanest month (March, 8 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodSep 1715 µg/m³Mar 168 µg/m³
PM2.5 (µg/m³)Level
Jan9Good
Feb9Good
Mar8Good
Apr9Good
May10Good
Jun10Good
Jul10Good
Aug11Good
Sep15Moderate
Oct12Good
Nov9Good
Dec9Good
Location & terrain

Where is Visconde do Rio Branco?

Visconde do Rio Branco sits at 21.0°S, 42.8°W, 343 m above sea level, in Brazil. The nearest listed city is Ubá, 16 km away.

Topography around Visconde do Rio Branco

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

Within 3 km, the terrain around Visconde do Rio Branco has only modest variations in elevation — a maximum elevation change of 164 m around an average of 375 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 644 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,843 m.

The land around Visconde do Rio Branco is covered by grassland (66%) within 3 km, grassland (71%) and trees (26%) within 16 km, and grassland (61%) and trees (38%) within 80 km.

3 km
164 m
16 km
644 m
80 km
1,843 m
treesgrasslandcroplandartificial surfacesbare terrain
May weather nearby: Ubá 16 km · Tocantins 26 km · Ervália 27 km · Viçosa 29 km · Cataguases 45 km · Rio Pomba 46 km · Muriaé 51 km · Piranga 60 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 Visconde do Rio Branco (-21.0103°, -42.8406°, elevation 343 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).