São João Nepomuceno weather in May

In May, São João Nepomuceno sees average daytime highs of 25°C and overnight lows near 16°C, with 47 mm of rain across 8.1 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 26°C in the first days to 25°C by the end. 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 São João Nepomuceno's 4th-clearest and 10th-windiest month. For the whole year in context, see São João Nepomuceno's year-round climate.

Daytime high
25°
10th warmest
Overnight low
16°
4th coldest
Rainfall
47 mm
8.1 wet days
Daylight
11 hours
7:19 AM – 6:18 PM
Cloud cover
57%
4th clearest
Wind
6 km/h
10th windiest
Solar energy
3.59 kWh/m²
Travel score
7.1
out of 10

São João Nepomuceno 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 26°C in the first days to 25°C by the end.

A typical May day in São João Nepomuceno reaches about 25°C in the afternoon and slips back to 16°C overnight — a 9°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°151015202531
Avg high (°C)Avg low (°C)
12717
22617
32617
42617
52617
62617
72617
82616
92616
102616
112616
122516
132516
142516
152516
162516
172516
182516
192516
202516
212516
222516
232516
242515
252515
262515
272515
282515
292515
302515
312515

How May really feels in São João Nepomuceno

Once humidity and wind are folded in, May averages 0 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.

Days feeling ≥ 32°C
0
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

May sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

São João Nepomuceno 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
Jan30° / 21°2621913.24.0
Feb30° / 21°15814.612.74.1
Mar29° / 20°17918.412.24.3
Apr28° / 19°7911.911.55.9
May25° / 16°478.1117.1
Jun25° / 14°173.910.78.0
Jul24° / 14°18410.88.1
Aug25° / 15°234.811.37.8
Sep27° / 16°689.211.96.7
Oct27° / 18°1241412.55.7
Nov28° / 19°24719.1134.7
Dec29° / 20°27921.613.34.0

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 50%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15644
25644
35644
45545
55446
65446
75347
85149
95050
104852
114852
124654
134654
144654
154555
164555
174654
184555
194654
204654
214753
224753
234852
244951
255050
265149
275248
285248
295347
305347
315446

Chance of precipitation in May

Any precipitation

São João Nepomuceno gets around 47 mm of rain over 8.1 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 26% and peaks near 29% on the wettest days. The odds ease toward the end of the month.

0%10%20%30%40%151015202531
Rain chance (%)
129
229
328
428
528
627
727
827
928
1028
1128
1228
1329
1429
1529
1629
1728
1828
1928
2027
2127
2226
2326
2425
2524
2623
2723
2822
2921
3020
3119

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 47% of days. Sticky, muggy-or-worse air turns up on roughly 18% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
12184436
23194534
33204532
43214630
54224628
64234726
74244725
84254724
95254723
105264722
115264821
125274820
135274820
145284819
156284818
166294817
176294817
186304816
196314815
206314914
217324913
227324912
237334911
248344810
258344810
26835489
27935488
28936488
29936477
301036477
311036477

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 6 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
216calm
226calm
236calm
246calm
256calm
266calm
276calm
286calm
296calm
306calm
316calm

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 7:13 AM to 7:26 AM, and sunset from 6:26 PM to 6:13 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.27:136:26
211.27:136:25
311.27:136:24
411.27:146:24
511.17:146:23
611.17:156:23
711.17:156:22
811.17:166:21
911.17:166:21
1011.17:166:20
1111.17:176:20
1211.07:176:19
1311.07:186:19
1411.07:186:18
1511.07:196:18
1611.07:196:18
1711.07:196:17
1810.97:206:17
1910.97:206:16
2010.97:216:16
2110.97:216:16
2210.97:226:15
2310.97:226:15
2410.97:236:15
2510.97:236:14
2610.87:236:14
2710.87:246:14
2810.87:246:14
2910.87:256:14
3010.87:256:13
3110.87:266:13

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 3.59 kWh/m².

For context, solar energy here swings from a low near 3.41 kWh/m² to a high of 5.94 kWh/m² in February across the year — May's 3.59 kWh/m² sits near the bottom.

01234151015202531
Solar energy (kWh/m²)Level
14.0Moderate
24.0Moderate
33.9Moderate
43.9Moderate
53.9Moderate
63.9Moderate
73.8Moderate
83.8Moderate
93.8Moderate
103.7Moderate
113.7Moderate
123.6Moderate
133.6Moderate
143.6Moderate
153.5Moderate
163.5Moderate
173.5Moderate
183.4Moderate
193.4Moderate
203.4Moderate
213.4Moderate
223.4Moderate
233.4Moderate
243.4Moderate
253.4Moderate
263.4Moderate
273.4Moderate
283.4Moderate
293.4Moderate
303.4Moderate
313.4Moderate
Planning a trip in May

Hazard calendar for São João Nepomuceno

In seasonPeak

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

São João Nepomuceno'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 São João Nepomuceno?

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

7.1
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 São João Nepomuceno for general sightseeing. The water and warmth also suit a beach or pool day.

What to pack for São João Nepomuceno in May

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

In May, São João Nepomuceno sees daytime highs around 25°C and nights near 16°C. Worth packing: light clothes and rain gear. About 8 days see rain.

light clothesrain gear

UV index in São João Nepomuceno 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 São João Nepomuceno 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
Feb15Extreme
Mar13Extreme
Apr10Very high
May7High
Jun6High
Jul6High
Aug8Very high
Sep8Very high
Oct12Extreme
Nov14Extreme
Dec14Extreme

Air quality in São João Nepomuceno 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 São João Nepomuceno is worst in September — around 19 µg/m³ PM2.5 (moderate), about 1.8× the cleanest month (January, 10 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodSep 1518 µg/m³Jan 1210 µg/m³
PM2.5 (µg/m³)Level
Jan10Good
Feb11Good
Mar11Good
Apr12Moderate
May14Moderate
Jun14Moderate
Jul14Moderate
Aug14Moderate
Sep19Moderate
Oct13Moderate
Nov11Good
Dec10Good
Location & terrain

Where is São João Nepomuceno?

São João Nepomuceno sits at 21.5°S, 43.0°W, 378 m above sea level, in Brazil. The nearest listed city is Rio Pomba, 34 km away.

Topography around São João Nepomuceno

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

Within 3 km, the terrain around São João Nepomuceno has significant variations in elevation — a maximum elevation change of 460 m around an average of 426 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 719 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,590 m.

The land around São João Nepomuceno is covered by grassland (63%) and trees (26%) within 3 km, grassland (67%) and trees (31%) within 16 km, and grassland (63%) and trees (36%) within 80 km.

3 km
460 m
16 km
719 m
80 km
1,590 m
treesgrasslandcroplandartificial surfaces
May weather nearby: Rio Pomba 34 km · Cataguases 37 km · Leopoldina 38 km · Tocantins 41 km · Juiz de Fora 43 km · Ubá 47 km · Além Paraíba 50 km · Sapucaia 52 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 São João Nepomuceno (-21.54°, -43.0106°, elevation 378 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).