Porteirinha weather in May

In May, Porteirinha sees average daytime highs of 29°C and overnight lows near 18°C, with 6 mm of rain across 1.6 wet days and about 11.3 hours of daylight. It is the 10th-warmest and 9th-wettest month of the year here.

Day-to-day highs hold fairly steady near 29°C through the month. The sky is clear or mostly clear about 41% of the time in May, and the air most often feels humid.

Daylight stretches from about 11 h 24 min at the start of May to 11 h 06 min by month's end. Set against the rest of the year, May is Porteirinha's 5th-clearest and 6th-windiest month. For the whole year in context, see Porteirinha's year-round climate.

Daytime high
29°
10th warmest
Overnight low
18°
5th coldest
Rainfall
6 mm
1.6 wet days
Daylight
11 h 18 min
7:10 AM – 6:26 PM
Cloud cover
47%
5th clearest
Wind
10 km/h
6th windiest
Solar energy
4.66 kWh/m²
Travel score
6.5
out of 10

Porteirinha is 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 29°C through the month.

A typical May day in Porteirinha reaches about 29°C in the afternoon and slips back to 18°C overnight — a 11°C spread between the day's warmth and the night's chill. On most days the high lands between 26°C and 32°C. Set against its neighbours, May runs about 1°C cooler than April and about 1°C warmer than June.

15°20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
13019
23019
33019
43019
53019
63019
73019
83019
93019
103019
112919
122919
132919
142918
152918
162918
172918
182918
192918
202918
212918
222918
232918
242918
252918
262918
272918
282918
292918
302918
312918

How May really feels in Porteirinha

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.

Porteirinha 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
Jan31° / 21°981112.84.5
Feb31° / 21°678.212.54.5
Mar31° / 21°821012.14.6
Apr30° / 20°314.811.75.5
May29° / 18°61.611.36.5
Jun28° / 17°10.211.17.4
Jul28° / 16°00.111.27.7
Aug30° / 16°10.211.56.8
Sep32° / 18°71.411.95.3
Oct32° / 20°435.912.44.3
Nov30° / 21°11812.612.74.3
Dec30° / 21°12613.412.94.5

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 41% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 23% of May, with mostly cloudy or overcast conditions the remaining 35%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16832
26733
36733
46733
56634
66634
76535
86535
96337
106337
116238
126139
136040
146040
156040
166040
175941
186040
196040
206139
216238
226337
236436
246535
256733
266832
276931
287030
297129
307228
317327

Chance of precipitation in May

Any precipitation

Porteirinha gets around 6 mm of rain over 1.6 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 5% and peaks near 8% on the wettest days.

0%10%20%30%151015202531
Rain chance (%)
18
28
37
47
57
66
76
86
96
106
116
126
136
146
156
166
176
186
196
205
215
225
235
244
254
264
273
283
293
302
312

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 46% of days. Sticky, muggy-or-worse air turns up on roughly 6% of them.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)Muggy (%)
14255813
25265613
35275612
46285511
56295411
67305310
77315210
8832519
9832519
10933508
11933508
121034497
131034496
141135486
151135485
161236475
171237465
181238454
191339454
201340443
211341433
221342432
231343422
241344412
251446391
261447381
271448371
281449361
291451341
301551331
311553311

Wind in May

Winds average 10 km/h in May.

Across May, daily wind ranges from about 10 km/h on the calmest days to 10 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
110calm
210calm
310calm
410calm
510calm
610calm
710calm
810calm
910calm
1010calm
1110calm
1210calm
1310calm
1410calm
1510calm
1610calm
1710calm
1810calm
1910calm
2010calm
2110calm
2210calm
2310calm
2410calm
2510calm
2610calm
2710calm
2810calm
2910calm
3010calm
3110calm

Sunrise & sunset in May

DaylightNight

Daylight runs from about 11 h 24 min at the start of May to 11 h 06 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 18 minutes over May. Sunrise moves from 7:06 AM to 7:15 AM, and sunset from 6:33 PM to 6:24 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.47:066:33
211.47:066:32
311.47:076:32
411.47:076:31
511.47:076:31
611.47:076:30
711.47:086:30
811.47:086:29
911.37:086:29
1011.37:086:28
1111.37:096:28
1211.37:096:28
1311.37:096:27
1411.37:106:27
1511.37:106:27
1611.37:106:26
1711.37:116:26
1811.27:116:26
1911.27:116:26
2011.27:126:25
2111.27:126:25
2211.27:126:25
2311.27:136:25
2411.27:136:25
2511.27:136:24
2611.27:146:24
2711.27:146:24
2811.27:146:24
2911.27:156:24
3011.17:156:24
3111.17:156:24

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 4.66 kWh/m².

For context, solar energy here swings from a low near 4.42 kWh/m² to a high of 6.37 kWh/m² in October across the year — May's 4.66 kWh/m² sits near the bottom.

024151015202531
Solar energy (kWh/m²)Level
15.0Bright
24.9Bright
34.9Bright
44.9Bright
54.9Bright
64.9Bright
74.8Bright
84.8Bright
94.8Bright
104.8Bright
114.8Bright
124.7Bright
134.7Bright
144.7Bright
154.7Bright
164.6Bright
174.6Bright
184.6Bright
194.6Bright
204.5Bright
214.5Bright
224.5Bright
234.5Bright
244.5Bright
254.5Bright
264.5Bright
274.5Bright
284.5Bright
294.5Bright
304.5Bright
314.5Bright
Planning a trip in May

Hazard calendar for Porteirinha

In seasonPeak

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

Porteirinha's rainy season runs November–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 Porteirinha?

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
8.5
Beach & pool
4th-best month of the year

May is a reasonable time to visit Porteirinha for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Porteirinha in May

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

In May, Porteirinha sees daytime highs around 29°C and nights near 18°C. Pack light clothes. Worth having: sun protection.

light clothessun protection

UV index in Porteirinha in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May peaks around 9 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Porteirinha peaks around February 16 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 11 at about 8 (very high).

The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highExtremeFeb 16UV 15Jul 11UV 8
UV index (midday)Level
Jan14Extreme
Feb16Extreme
Mar14Extreme
Apr12Extreme
May9Very high
Jun8Very high
Jul8Very high
Aug10Very high
Sep12Extreme
Oct13Extreme
Nov14Extreme
Dec13Extreme
Location & terrain

Where is Porteirinha?

Porteirinha sits at 15.7°S, 43.0°W, 570 m above sea level, in Brazil. The nearest listed city is Janaúba, 31 km away.

Topography around Porteirinha

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

Within 3 km, the terrain around Porteirinha has significant variations in elevation — a maximum elevation change of 270 m around an average of 614 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 1,324 m.

The land around Porteirinha is covered by grassland (38%) and trees (30%) within 3 km, grassland (48%) and trees (29%) within 16 km, and trees (42%), grassland (27%) and shrubs (22%) within 80 km.

3 km
270 m
16 km
756 m
80 km
1,324 m
treesshrubsgrasslandcroplandartificial surfaces
May weather nearby: Janaúba 31 km · Rio Pardo de Minas 54 km · Barreiro do Jaíba 62 km · Monte Azul 67 km · Jaíba 83 km · Taiobeiras 85 km · Salinas 92 km · Espinosa 94 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 Porteirinha (-15.7433°, -43.0283°, elevation 570 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).