Demerval Lobão weather in May

In May, Demerval Lobão sees average daytime highs of 32°C and overnight lows near 23°C, with 95 mm of rain across 10.9 wet days and about 11.8 hours of daylight. It is the 9th-warmest and 5th-wettest month of the year here.

Day-to-day highs hold fairly steady near 32°C through the month. The sky is clear or mostly clear about 27% of the time in May, and the air most often feels oppressive.

Daylight stretches from about 11 h 48 min at the start of May to 11 h 42 min by month's end. Set against the rest of the year, May is Demerval Lobão's 7th-clearest and 8th-windiest month. For the whole year in context, see Demerval Lobão's year-round climate.

Daytime high
32°
9th warmest
Overnight low
23°
7th coldest
Rainfall
95 mm
10.9 wet days
Daylight
11 h 48 min
5:54 AM – 5:40 PM
Cloud cover
60%
7th clearest
Wind
6 km/h
8th windiest
Solar energy
4.92 kWh/m²
Travel score
3.8
out of 10

Temperature in May

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 32°C through the month.

A typical May day in Demerval Lobão reaches about 32°C in the afternoon and slips back to 23°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 30°C and 34°C. Set against its neighbours, May runs about 1°C warmer than April and about 1°C cooler than June.

20°25°30°35°151015202531
Avg high (°C)Avg low (°C)
13223
23223
33223
43223
53223
63223
73223
83223
93223
103223
113223
123223
133223
143223
153223
163223
173223
183223
193223
203223
213223
223223
233223
243323
253323
263323
273323
283323
293323
303323
313323

How May really feels in Demerval Lobão

Once humidity and wind are folded in, May averages 31 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
31
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

The story in May is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

Demerval Lobão weather by month

How May compares with the rest of the year at a glance. May is the 9th-warmest and 5th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan32° / 23°22222.612.32.7
Feb32° / 23°26322.212.22.8
Mar31° / 23°30226.3122.7
Apr31° / 23°22222.311.93.0
May32° / 23°9510.911.83.8
Jun33° / 23°112.211.74.0
Jul34° / 23°6111.73.8
Aug35° / 24°20.411.83.0
Sep37° / 24°30.7122.1
Oct37° / 25°172.312.11.7
Nov36° / 25°426.212.22.1
Dec34° / 24°9411.512.32.6

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 25% of May, with mostly cloudy or overcast conditions the remaining 48%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13664
23763
33763
43961
54060
64060
74357
84555
94555
104753
114852
124951
135149
145248
155347
165446
175545
185545
195644
205743
215842
225941
235842
245941
256040
266040
276139
286238
296238
306337
316436

Chance of precipitation in May

Any precipitation

Demerval Lobão gets around 95 mm of rain over 10.9 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 35% and peaks near 58% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%151015202531
Rain chance (%)
158
256
354
452
550
648
746
844
942
1040
1138
1236
1335
1434
1533
1632
1731
1830
1929
2029
2128
2227
2327
2426
2526
2625
2724
2823
2922
3021
3120

Humidity in May

DryComfortableHumidMuggyOppressiveMiserable

Most of May feels oppressive — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, May lands in the oppressive band about 68% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202531
Humid (%)Muggy (%)Oppressive (%)Miserable (%)
1015445
2015544
3015643
4015841
5015940
6016039
7026137
8026335
9026533
10026632
11036730
12036829
13037027
14047125
15047224
16057322
17067321
18077419
19087418
20097417
210107515
220127414
230137413
240157312
250177211
260187210
27020719
28023698
29025687
30127666
31130645

Wind in May

Winds average 6 km/h in May.

Across May, daily wind ranges from about 5 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
15calm
25calm
35calm
45calm
55calm
66calm
76calm
86calm
96calm
106calm
116calm
126calm
136calm
146calm
156calm
166calm
176calm
186calm
196calm
206calm
216calm
226calm
236calm
246calm
256calm
266calm
276calm
287calm
297calm
307calm
317calm

Sunrise & sunset in May

DaylightNight

Daylight runs from about 11 h 48 min at the start of May to 11 h 42 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 6 minutes over May. Sunrise moves from 5:53 AM to 5:57 AM, and sunset from 5:42 PM to 5:40 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
111.85:535:42
211.85:535:42
311.85:535:42
411.85:535:42
511.85:535:41
611.85:545:41
711.85:545:41
811.85:545:41
911.85:545:41
1011.85:545:40
1111.85:545:40
1211.85:545:40
1311.85:545:40
1411.85:545:40
1511.85:545:40
1611.85:545:40
1711.85:545:40
1811.85:545:40
1911.75:555:39
2011.75:555:39
2111.75:555:39
2211.75:555:39
2311.75:555:39
2411.75:555:39
2511.75:565:39
2611.75:565:39
2711.75:565:39
2811.75:565:39
2911.75:565:39
3011.75:565:39
3111.75:575:40

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 4.92 kWh/m².

For context, solar energy here swings from a low near 4.77 kWh/m² to a high of 6.62 kWh/m² in October across the year — May's 4.92 kWh/m² sits near the bottom.

0246151015202531
Solar energy (kWh/m²)Level
14.8Bright
24.8Bright
34.8Bright
44.8Bright
54.8Bright
64.8Bright
74.8Bright
84.9Bright
94.9Bright
104.9Bright
114.9Bright
124.9Bright
134.9Bright
144.9Bright
154.9Bright
165.0Bright
175.0Bright
185.0Bright
195.0Bright
205.0Bright
215.0Bright
225.0Bright
235.0Bright
245.0Bright
255.0Bright
265.0Bright
275.0Bright
285.0Bright
295.0Bright
305.0Bright
315.0Bright
Planning a trip in May

Hazard calendar for Demerval Lobão

In seasonPeak

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

Demerval Lobão's monsoon runs January–April, 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 Demerval Lobão?

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

3.8
Sightseeing
2nd-best month of the year
6.2
Beach & pool
4th-best month of the year

May is a weaker month for outdoor sightseeing in Demerval Lobão. The water and warmth also suit a beach or pool day.

What to pack for Demerval Lobão in May

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

In May, Demerval Lobão sees daytime highs around 32°C and nights near 23°C. Pack light clothes. Worth having: rain gear and sun protection. About 11 days see rain.

light clothesrain gearsun protection

UV index in Demerval Lobão in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May peaks around 11 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Demerval Lobão peaks around March 13 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near August 10 at about 10 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highExtremeMar 13UV 15Aug 10UV 10
UV index (midday)Level
Jan13Extreme
Feb14Extreme
Mar15Extreme
Apr13Extreme
May11Extreme
Jun10Very high
Jul10Very high
Aug10Very high
Sep12Extreme
Oct12Extreme
Nov11Extreme
Dec11Extreme

Air quality in Demerval Lobão 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 Demerval Lobão is worst in October — around 35 µg/m³ PM2.5 (moderate), about 4.2× the cleanest month (June, 8 µg/m³).

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodModerateOct 1633 µg/m³Jun 199 µg/m³
PM2.5 (µg/m³)Level
Jan15Moderate
Feb16Moderate
Mar15Moderate
Apr14Moderate
May12Good
Jun8Good
Jul10Good
Aug16Moderate
Sep25Moderate
Oct35Moderate
Nov23Moderate
Dec17Moderate
Location & terrain

Where is Demerval Lobão?

Demerval Lobão sits at 5.4°S, 42.7°W, 116 m above sea level, in Brazil. The nearest listed city is Teresina, 33 km away.

Topography around Demerval Lobão

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

Within 3 km, the terrain around Demerval Lobão has only modest variations in elevation — a maximum elevation change of 93 m around an average of 120 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 194 m; within 80 km, significant variations in elevation — a maximum elevation change of 378 m.

The land around Demerval Lobão is covered by trees (57%) and shrubs (20%) within 3 km, trees (63%) and shrubs (22%) within 16 km, and trees (55%) and shrubs (25%) within 80 km.

3 km
93 m
16 km
194 m
80 km
378 m
treesshrubsgrasslandcroplandartificial surfaceswater
May weather nearby: Teresina 33 km · Timon 34 km · Altos 43 km · Parnarama 58 km · Água Branca 60 km · Matões 61 km · José de Freitas 68 km · Campo Maior 82 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 Demerval Lobão (-5.3583°, -42.6764°, elevation 116 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).