Boa Esperança weather in May

In May, Boa Esperança sees average daytime highs of 24°C and overnight lows near 15°C, with 40 mm of rain across 5.4 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 25°C in the first days to 24°C by the end. The sky is clear or mostly clear about 38% 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 Boa Esperança's 5th-clearest and 8th-windiest month. For the whole year in context, see Boa Esperança's year-round climate.

Daytime high
24°
10th warmest
Overnight low
15°
4th coldest
Rainfall
40 mm
5.4 wet days
Daylight
11 hours
7:29 AM – 6:28 PM
Cloud cover
52%
5th clearest
Wind
7 km/h
8th windiest
Solar energy
4.07 kWh/m²
Travel score
7.7
out of 10

Temperature in May

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 25°C in the first days to 24°C by the end.

A typical May day in Boa Esperança reaches about 24°C in the afternoon and slips back to 15°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 22°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)
12616
22616
32516
42516
52516
62515
72515
82515
92515
102515
112515
122515
132515
142415
152415
162415
172415
182415
192415
202415
212414
222414
232414
242414
252414
262414
272414
282414
292414
302414
312414

Boa Esperança 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° / 20°24521.813.14.4
Feb28° / 19°14216.912.74.6
Mar28° / 19°15918.412.15.2
Apr27° / 17°588.711.56.7
May24° / 15°405.4117.7
Jun24° / 13°162.710.78.4
Jul24° / 13°12210.88.7
Aug26° / 13°162.811.38.3
Sep27° / 16°597.311.97.0
Oct28° / 18°10012.812.55.7
Nov27° / 18°18619134.9
Dec27° / 19°24322.913.34.4

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 38% 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 44%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16535
26436
36436
46337
56337
66238
76040
85941
95644
105545
115347
125248
135050
145050
154852
164852
174852
184852
194951
204951
215149
225248
235347
245545
255644
265842
275842
286040
296040
306139
316238

Chance of precipitation in May

Any precipitation

Boa Esperança gets around 40 mm of rain over 5.4 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 21% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
119
218
318
417
517
616
716
816
916
1016
1117
1217
1317
1418
1518
1619
1719
1820
1920
2021
2121
2221
2320
2420
2520
2619
2719
2818
2918
3017
3116

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 44% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
19394210
21040418
31141407
41242396
51343386
61444375
71544374
81545364
91645363
101645363
111745353
121844353
131844352
141944352
152043352
162043342
172143342
182143342
192243342
202243332
212343321
222344321
232444311
242445301
252546291
262547271
272547261
282648251
292649241
302750231
312750221

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 7:22 AM to 7:35 AM, and sunset from 6:37 PM to 6:24 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.27:226:37
211.27:236:36
311.27:236:35
411.27:246:35
511.27:246:34
611.27:246:33
711.17:256:33
811.17:256:32
911.17:266:32
1011.17:266:31
1111.17:266:31
1211.17:276:30
1311.07:276:30
1411.07:286:29
1511.07:286:29
1611.07:296:28
1711.07:296:28
1811.07:296:28
1911.07:306:27
2010.97:306:27
2110.97:316:27
2210.97:316:26
2310.97:326:26
2410.97:326:26
2510.97:326:25
2610.97:336:25
2710.97:336:25
2810.97:346:25
2910.87:346:25
3010.87:356:24
3110.87:356:24

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 4.07 kWh/m².

For context, solar energy here swings from a low near 3.86 kWh/m² to a high of 5.78 kWh/m² in February across the year — May's 4.07 kWh/m² sits near the bottom.

012345151015202531
Solar energy (kWh/m²)Level
14.5Bright
24.5Bright
34.4Bright
44.4Bright
54.4Bright
64.3Bright
74.3Bright
84.3Bright
94.2Bright
104.2Bright
114.2Bright
124.1Bright
134.1Bright
144.0Bright
154.0Bright
164.0Moderate
174.0Moderate
183.9Moderate
193.9Moderate
203.9Moderate
213.9Moderate
223.9Moderate
233.9Moderate
243.8Moderate
253.8Moderate
263.8Moderate
273.8Moderate
283.8Moderate
293.8Moderate
303.8Moderate
313.8Moderate
Planning a trip in May

Hazard calendar for Boa Esperança

In seasonPeak

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

Boa Esperança'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 Boa Esperança?

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

7.7
Sightseeing
4th-best month of the year
6.7
Beach & pool
5th-best month of the year

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

What to pack for Boa Esperança in May

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

In May, Boa Esperança sees daytime highs around 24°C and nights near 15°C. Worth packing: light clothes. About 5 days see rain.

light clothes

UV index in Boa Esperança 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 Boa Esperança peaks around January 22 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 21 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 22UV 15Jun 21UV 6
UV index (midday)Level
Jan15Extreme
Feb15Extreme
Mar13Extreme
Apr10Extreme
May8Very high
Jun6High
Jul7High
Aug9Very high
Sep9Very high
Oct12Extreme
Nov14Extreme
Dec14Extreme

Air quality in Boa Esperança 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 Boa Esperança is worst in September — around 23 µg/m³ PM2.5 (moderate), about 3.3× the cleanest month (November, 7 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodSep 1622 µg/m³Nov 237 µg/m³
PM2.5 (µg/m³)Level
Jan8Good
Feb8Good
Mar8Good
Apr8Good
May8Good
Jun8Good
Jul8Good
Aug12Good
Sep23Moderate
Oct12Good
Nov7Good
Dec7Good
Location & terrain

Where is Boa Esperança?

Boa Esperança sits at 21.1°S, 45.6°W, 780 m above sea level, in Brazil. The nearest listed city is Campos Gerais, 26 km away.

Topography around Boa Esperança

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

Within 3 km, the terrain around Boa Esperança has only modest variations in elevation — a maximum elevation change of 125 m around an average of 801 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 547 m; within 80 km, large variations in elevation — a maximum elevation change of 728 m.

The land around Boa Esperança is covered by trees (26%), grassland (21%) and artificial surfaces (21%) within 3 km, trees (43%), grassland (31%) and cropland (21%) within 16 km, and grassland (40%) and trees (38%) within 80 km.

3 km
125 m
16 km
547 m
80 km
728 m
treesgrasslandcroplandartificial surfacesbare terrainwaterwetland
May weather nearby: Campos Gerais 26 km · Três Pontas 31 km · Campo Belo 37 km · Nepomuceno 38 km · Perdões 49 km · Varginha 53 km · Paraguaçu 54 km · Alfenas 55 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 Boa Esperança (-21.09°, -45.5658°, elevation 780 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).