Santos Dumont weather in May

In May, Santos Dumont sees average daytime highs of 24°C and overnight lows near 15°C, with 50 mm of rain across 8 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 24°C in the first days to 23°C by the end. The sky is clear or mostly clear about 27% 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 Santos Dumont's 4th-clearest and 9th-windiest month. For the whole year in context, see Santos Dumont's year-round climate.

Daytime high
24°
10th warmest
Overnight low
15°
4th coldest
Rainfall
50 mm
8 wet days
Daylight
11 hours
7:21 AM – 6:20 PM
Cloud cover
59%
4th clearest
Wind
7 km/h
9th windiest
Solar energy
3.64 kWh/m²
Travel score
7.2
out of 10

Santos Dumont 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 24°C in the first days to 23°C by the end.

A typical May day in Santos Dumont reaches about 24°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 20°C and 27°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)
12516
22516
32516
42415
52415
62415
72415
82415
92415
102415
112415
122415
132415
142315
152315
162315
172315
182315
192314
202314
212314
222314
232314
242314
252314
262314
272314
282314
292314
302314
312314

Santos Dumont 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
Jan28° / 19°29620.913.24.6
Feb28° / 19°19616.212.74.9
Mar27° / 19°2042012.24.9
Apr26° / 17°8912.811.56.2
May24° / 15°508117.2
Jun23° / 13°214.610.77.8
Jul23° / 13°224.910.87.8
Aug24° / 13°295.711.37.8
Sep25° / 15°7510.611.96.8
Oct25° / 17°13916.612.55.6
Nov26° / 17°26621.3134.7
Dec27° / 19°31823.913.34.3

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 27% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 18% of May, with mostly cloudy or overcast conditions the remaining 54%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15149
25149
35149
45050
55050
64852
74753
84753
94555
104456
114357
124357
134258
144159
154159
164060
174060
184060
194159
204258
214357
224357
234555
244555
254654
264753
274951
285050
295050
305149
315347

Chance of precipitation in May

Any precipitation

Santos Dumont gets around 50 mm of rain over 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 27% and peaks near 30% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%40%151015202531
Rain chance (%)
130
229
329
428
528
628
727
827
927
1028
1128
1228
1329
1429
1529
1629
1729
1828
1928
2027
2127
2226
2326
2425
2524
2624
2723
2822
2921
3021
3120

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 46% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
18354610
2937459
31038448
41040437
51141426
61242415
71243405
81344394
91345384
101345383
111446373
121446373
131447372
141447362
151548362
161548362
171548351
181648351
191649341
201749341
211749331
221849320
231949310
242050310
252050300
262150290
272250280
282250280
292350270
302450260
312451250

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 8 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
188calm
198calm
208calm
218calm
228calm
238calm
248calm
258calm
268calm
278calm
288calm
298calm
308calm
318calm

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 7:15 AM to 7:28 AM, and sunset from 6:28 PM to 6:16 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.27:156:28
211.27:156:27
311.27:166:27
411.27:166:26
511.27:166:26
611.17:176:25
711.17:176:24
811.17:186:24
911.17:186:23
1011.17:186:23
1111.17:196:22
1211.07:196:22
1311.07:206:21
1411.07:206:21
1511.07:216:20
1611.07:216:20
1711.07:226:19
1811.07:226:19
1910.97:226:19
2010.97:236:18
2110.97:236:18
2210.97:246:18
2310.97:246:17
2410.97:256:17
2510.97:256:17
2610.97:256:17
2710.87:266:16
2810.87:266:16
2910.87:276:16
3010.87:276:16
3110.87:286:16

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 3.64 kWh/m².

For context, solar energy here swings from a low near 3.49 kWh/m² to a high of 5.84 kWh/m² in February across the year — May's 3.64 kWh/m² sits near the bottom.

012345151015202531
Solar energy (kWh/m²)Level
14.0Bright
24.0Bright
34.0Bright
44.0Moderate
53.9Moderate
63.9Moderate
73.9Moderate
83.8Moderate
93.8Moderate
103.8Moderate
113.7Moderate
123.7Moderate
133.6Moderate
143.6Moderate
153.6Moderate
163.5Moderate
173.5Moderate
183.5Moderate
193.5Moderate
203.5Moderate
213.4Moderate
223.4Moderate
233.4Moderate
243.4Moderate
253.4Moderate
263.4Moderate
273.4Moderate
283.4Moderate
293.5Moderate
303.5Moderate
313.5Moderate
Planning a trip in May

Hazard calendar for Santos Dumont

In seasonPeak

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

Santos Dumont'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 Santos Dumont?

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

7.2
Sightseeing
4th-best month of the year
5.8
Beach & pool
6th-best month of the year

May is one of the better times to visit Santos Dumont for general sightseeing.

What to pack for Santos Dumont in May

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

In May, Santos Dumont sees daytime highs around 24°C and nights near 15°C. Worth packing: light clothes and rain gear. About 8 days see rain.

light clothesrain gear

UV index in Santos Dumont 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 Santos Dumont peaks around February 10 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 23 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 highExtremeFeb 10UV 15Jun 23UV 6
UV index (midday)Level
Jan15Extreme
Feb16Extreme
Mar13Extreme
Apr10Extreme
May7Very high
Jun6High
Jul6High
Aug8Very high
Sep9Very high
Oct12Extreme
Nov14Extreme
Dec14Extreme

Air quality in Santos Dumont 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 Santos Dumont is worst in September — around 22 µg/m³ PM2.5 (moderate), about 2.0× the cleanest month (January, 11 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodSep 1521 µg/m³Jan 1111 µg/m³
PM2.5 (µg/m³)Level
Jan11Good
Feb11Good
Mar12Good
Apr13Moderate
May15Moderate
Jun15Moderate
Jul14Moderate
Aug16Moderate
Sep22Moderate
Oct14Moderate
Nov12Good
Dec11Good
Location & terrain

Where is Santos Dumont?

Santos Dumont sits at 21.5°S, 43.6°W, 844 m above sea level, in Brazil. The nearest listed city is Barbacena, 34 km away.

Topography around Santos Dumont

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

Within 3 km, the terrain around Santos Dumont has only modest variations in elevation — a maximum elevation change of 182 m around an average of 890 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 756 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,595 m.

The land around Santos Dumont is covered by grassland (59%) and trees (27%) within 3 km, grassland (57%) and trees (41%) within 16 km, and grassland (58%) and trees (37%) within 80 km.

3 km
182 m
16 km
756 m
80 km
1,595 m
treesgrasslandcroplandartificial surfaceswater
May weather nearby: Barbacena 34 km · Juiz de Fora 40 km · Rio Pomba 44 km · Lima Duarte 50 km · Barroso 53 km · São João Nepomuceno 57 km · Carandaí 62 km · Tocantins 64 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 Santos Dumont (-21.4567°, -43.5525°, elevation 844 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).