Climate and average weather in Demerval Lobão

In Demerval Lobão, the weather is humid, sweltering, wet, and mostly clear and remarkably steady, with daytime highs holding near sweltering levels all year. The wettest stretch peaks around March.

Best: late April to mid August

Over the course of the year, the temperature in Demerval Lobão typically varies from 23°C to 37°C, and is rarely below 22°C or above 39°C. October is the hottest month of the year, while March is the coldest.

Based on the travel score, the best time of year to visit Demerval Lobão for warm-weather activities is from late April to mid August.

Hottest
Oct
37°
Coldest
Mar
23°
Wettest
Mar
302 mm
Driest
Aug
2 mm
Rain / yr
1278 mm
129 wet days
Daylight
11.7–12.3 h
shortest–longest
Elevation
116 m
5.4°S
Clearest
Aug
31% cloud

Demerval Lobão weather by month, at a glance

The whole year in one picture — sky, rain, humidity, temperature and travel score. Click any band to jump to its full chart.

Each stripe is one measure across the whole year, stacked so a single day reads top to bottom. The sky band runs overcast grey on top down to clear blue at the base — more blue means sunnier — followed by the rainfall curve, the humidity band, a temperature strip that tints each stretch of the year by how warm its average high is, and the travel-score line at the foot. Scan straight down any date to read that day across every measure at once; the score climbs highest around late April to mid August.

Temperature through the year

Average highAverage lowShaded bands: 10–90% of days

Daily average highs and lows in Demerval Lobão, from 1991–2020 of climate data. The shaded bands show the range most days fall in — 10th to 90th percentile.

Temperatures in Demerval Lobão stay fairly even through the year, without a distinct hot or cool season. The warmest month is October, with an average high of 37°C and low of 25°C; the coolest is March, with an average low of 23°C and high of 31°C.

Days typically run about 10°C warmer than nights, with the widest day–night swing (around 13°C) in September.

20°25°30°35°40°JanFebMarAprMayJunJulAugSepOctNovDec
Avg high (°C)Avg low (°C)
Jan3223
Feb3223
Mar3123
Apr3123
May3223
Jun3323
Jul3423
Aug3524
Sep3724
Oct3725
Nov3625
Dec3424

How hot and cold Demerval Lobão really feels

Feels-like highFeels-like lowactual air temp

The felt-temperature range through the year — heat index on the day's high (summer humidity), wind chill on the night's low (winter wind). The dashed lines are the plain thermometer; the gap is how much hotter or colder it really feels.

On the hottest afternoons, once humidity is folded in, Demerval Lobão feels like about 40°C (around October 25). Nearly every day a year carries some heat stress, and 63 of them tip into dangerous heat (feels-like above 39°C), peaking in October.

20°25°30°35°40°JanFebMarAprMayJunJulAugSepOctNovDecdangerous heat
Feels-like high (°C)Air high (°C)Feels-like low (°C)Air low (°C)
Jan37322323
Feb37322323
Mar37312323
Apr37312323
May37322323
Jun36332323
Jul35342323
Aug36352424
Sep38372424
Oct39372525
Nov39362525
Dec38342424

Average hourly temperature in Demerval Lobão

A compact picture of the whole year, hour by hour: each column is a day, each row an hour, and the color is the modeled average temperature. Darker overlays mark night, lighter ones the civil-twilight hours around sunrise and sunset.

Read left to right for the day of the year and top to bottom for the hour of the day; the color is the modeled temperature, cool blues through to hot reds on the same scale as the other charts. A vertical slice is a single day's swing — coolest just before dawn, warmest in the mid-afternoon — while a horizontal slice follows one hour across the seasons. The darker overlay marks night and the lighter one the twilight around sunrise and sunset. Colors run warmest on October afternoons, near 37°C, and coldest before dawn in March, near 23°C.

JanFebMarAprMayJunJulAugSepOctNovDec12 AM2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AM

Demerval Lobão weather by month

Every month at a glance. Click a month for its detailed page.

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

Chance of rain

How likely it is to rain on a typical day, and how that shifts across the wetter and drier seasons.

Demerval Lobão gets about 1278 mm of precipitation a year. On a typical day the chance of rain is often wet, but that rises and falls sharply with the seasons.

The wetter season lasts 5.0 months, from around Dec 14 to May 13, peaking in March at about 87% chance on a given day. The drier stretch runs the rest of the year, bottoming out around Aug 7.

March is the wettest month by volume, with 302 mm over about 26 wet days; August is the driest, with 2 mm.

0%10%20%30%40%50%60%70%80%90%100%JanFebMarAprMayJunJulAugSepOctNovDecwetterdriermostly drysome rainoften wetvery wetMar 23 · 87%Aug 7 · 1%
Rain on a day (%)Rain days
Jan7223
Feb7922
Mar8426
Apr7422
May3511
Jun82
Jul31
Aug10
Sep31
Oct82
Nov206
Dec3912

Monthly rainfall

Over a full year, Demerval Lobão collects about 1278 mm of rain across 129 wet days — roughly 106 mm in an average month.

It doesn’t fall evenly. March is the wettest month with 302 mm, while August is the driest at just 2 mm. The three wettest months alone bring about 62% of the year’s total.

050100150200250300350JanFebMarAprMayJunJulAugSepOctNovDec2222633022229511623174294
Rainfall (mm)Rain days
Jan22223
Feb26322
Mar30226
Apr22222
May9511
Jun112
Jul61
Aug20
Sep31
Oct172
Nov426
Dec9412

Clouds and sunshine

ClearMostly clearPartly cloudyMostly cloudyOvercast

How often the daytime sky is clear, partly cloudy or overcast.

In Demerval Lobão, the average share of the sky covered by clouds shows significant seasonal variation over the course of the year.

The clearer part of the year begins around May 18 and lasts for 5.9 months, ending around November 14. The clearest month is September, when the sky is clear, mostly clear, or partly cloudy 90% of the time on average.

The cloudier part of the year begins around November 15 and lasts for 6.0 months, ending around May 17. The cloudiest month is March, when it is overcast or mostly cloudy 81% of the time.

0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%JanFebMarAprMayJunJulAugSepOctNovDecSep 11 · 90%Mar 23 · 17%clearmostly clearpartly cloudymostly cloudyovercastcloudierclearercloudier
Clearer (%)Cloudier (%)
Jan2575
Feb2278
Mar1981
Apr3070
May5248
Jun6931
Jul7822
Aug8614
Sep9010
Oct7921
Nov5545
Dec4357

Daylight, sunrise and sunset

DaylightNight

Hours of daylight through the year, with sunrise and sunset times.

The gold band is daylight — sunrise runs along its lower edge, sunset along the upper — so it widens toward summer and pinches toward winter, with night the dark area above and below. Close to the equator, Demerval Lobão barely changes through the year: days stay near 12 h 18 min of light in every season.

12 AM4 AM8 AM12 PM4 PM8 PM12 AMJanFebMarAprMayJunJulAugSepOctNovDec
Daylight (h)Sunrise (AM)Sunset (PM)
Jan12.35:526:08
Feb12.26:006:11
Mar12.05:596:01
Apr11.95:545:47
May11.85:545:40
Jun11.76:005:42
Jul11.76:055:48
Aug11.86:005:49
Sep12.05:465:44
Oct12.15:325:39
Nov12.25:295:43
Dec12.35:385:56

Sunny days

How many genuinely sunny days each month brings — days the sky stays clear or mostly clear — banded into plain-language zones.

Demerval Lobão averages about 11 sunny days a month — counting the days the sky stays clear or mostly clear — with a clear seasonal swing between 1 and 23 days.

The sunnier stretch runs 5.5 months, from around May 26 to Nov 9. The sunniest month is September, with roughly 22 sunny days (bright).

The greyest month is March, down near 2 sunny days — about 92% fewer than the September peak.

0510152025JanFebMarAprMayJunJulAugSepOctNovDecgreyersunniergreyergloomymixedbrightbrilliantSep 1423 daysMar 251 days
Sunny daysSky
Jan3Gloomy
Feb2Gloomy
Mar2Gloomy
Apr3Gloomy
May8Mixed
Jun12Mixed
Jul16Bright
Aug21Bright
Sep22Bright
Oct18Bright
Nov10Mixed
Dec8Gloomy

Humidity comfort

DryComfortableHumidMuggyOppressiveMiserable

Share of days at each humidity comfort level, based on the dew point — the measure that tracks how muggy it actually feels.

Humidity comfort is graded by the dew point — the temperature at which the air would be fully saturated — because it tracks how muggy it actually feels far better than relative humidity does. A low dew point feels dry and crisp; a high one feels sticky and oppressive no matter the reading on a humidity gauge.

In Demerval Lobão, how humid it feels changes noticeably over the year.

The more humid part of the year lasts 8.2 months, from around October 28 to July 5. The muggiest month is January, when the air feels humid, muggy or worse about 100% of the time.

The most comfortable stretch runs from around July 6 to October 27, and August is the most comfortable month — the air is dry or comfortable 17% of the time.

0%10%20%30%40%50%60%70%80%90%100%JanFebMarAprMayJunJulAugSepOctNovDecAug 4 · 18%Jan 1 · 0%miserableoppressivemuggyhumidcomfortablehumidcomfortablehumid
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
Jan00157915
Feb00017129
Mar00005743
Apr00004852
May000106724
Jun011452321
Jul09414280
Aug117532720
Sep012483630
Oct063051130
Nov011249381
Dec00427672

Wind

Average wind speed through the year, banded into plain-language speed zones so a number reads as 'breezy' or 'calm' without knowing the scale.

This is the average sustained wind speed at the standard 10 metres above open ground — the steady flow a weather station reports, not the sharper gusts that come and go, which can run half again as fast. It's the number that says whether a place is generally breezy or calm.

Across the year, average wind speed in Demerval Lobão is typically calm, near 7 km/h, and varies little with the seasons.

The windier part of the year lasts 5.6 months, from around May 31 to Nov 16. The windiest month is July, averaging about 9 km/h (calm).

The calmer part of the year runs from around Nov 17 to May 30, with March the calmest month at about 5 km/h.

051015JanFebMarAprMayJunJulAugSepOctNovDeccalmerwindiercalmercalmlight breezeJul 31 · 9 km/hMar 26 · 5 km/h
Wind speed (km/h)Feels
Jan5calm
Feb5calm
Mar5calm
Apr5calm
May6calm
Jun8calm
Jul9calm
Aug9calm
Sep8calm
Oct8calm
Nov7calm
Dec6calm

Hazard calendar for Demerval Lobão

In seasonPeak

When the seasonal hazards worth planning around — the rainy season, tropical-cyclone risk and dust haze — are active through the year.

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

Best time to visit Demerval Lobão

TravelBeach/poolTemperatureCloudsPrecipitation

To characterize how pleasant the weather is in Demerval Lobão throughout the year, we compute two travel scores — one for general sightseeing, one for beach and pool weather.

Around late July, Demerval Lobão is still near the tail of its best-weather window — great conditions with the peak-season crowds already thinning.

Inferred from the travel-score curve; month-by-month visitor numbers are a planned addition.

The travel score favors clear, rainless days with daytime highs between 18°C and 28°C. Based on this score, the best time of year to visit Demerval Lobão for general outdoor tourist activities is from late April to early August, with a peak score in the second week of June.

0246810JanFebMarAprMayJunJulAugSepOctNovDecbest timetravel scoretemperaturecloudsprecipitationJun 8 · 4.1

The travel score (filled area), and its constituents: the temperature score (red line), the cloud cover score (blue line), and the precipitation score (green line).

Travel score (0–10)Rating
Jan2.7poor
Feb2.7poor
Mar2.7poor
Apr3.0poor
May3.8fair
Jun4.0fair
Jul3.8fair
Aug3.0poor
Sep2.1poor
Oct1.7poor
Nov2.1poor
Dec2.6poor

The beach/pool score favors clear, rainless days with daytime highs between 24°C and 34°C. Based on this score, the best time of year to visit Demerval Lobão for hot-weather activities is from mid May to early September, with a peak score in the second week of July.

024681012JanFebMarAprMayJunJulAugSepOctNovDecbest timebeach/pool scoretemperaturecloudsprecipitationJul 14 · 7.5

The beach/pool score (filled area), and its constituents: the temperature score (red line), the cloud cover score (blue line), and the precipitation score (green line).

What to pack for Demerval Lobão, by month

EssentialRecommendedOptional

Month by month, what's worth putting in the bag — from the temperature range, rain chance, sun and wind. Tap a month for a quick packing note.

Demerval Lobão packs about the same all year — highs hold near 37°C. Across the year the things worth having are light clothes, sun protection and rain gear.

Light clothing
Warm layer
Winter coat
Rain gear
Sun protection
Windbreaker

In October, Demerval Lobão sees daytime highs around 37°C and nights near 25°C. Pack light clothes and sun protection.

UV index (midday) in Demerval Lobão by month

LowModerateHighVery highExtreme

Clear-sky midday UV index through the year, shaded by the WHO exposure levels — how much sun protection each month calls for.

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

Average hourly UV index in Demerval Lobão

LowModerateHighVery highExtreme

Modeled clear-sky UV for every hour of every day — when in the day sun protection actually matters.

The whole year hour by hour: each column is a day, each row an hour, and the color is the modeled clear-sky UV index — the midday peak scaled down as the sun sits lower in the sky. Darker overlays mark night, lighter ones the civil-twilight hours around sunrise and sunset.

UV falls off far faster than brightness as the sun drops, so even in March the burn window is concentrated in the middle of the day: about 8.5 hours a day reach index 3 (protection recommended), and 7 hours reach 6 or more. Mornings and late afternoons stay comparatively gentle year round.

JanFebMarAprMayJunJulAugSepOctNovDec12 AM2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AM
UV ≥ 3 (h/day)UV ≥ 6 (h/day)
Jan8.56.5
Feb8.56.5
Mar8.57
Apr86
May7.55.5
Jun75
Jul75
Aug7.55
Sep86
Oct85.5
Nov7.55.5
Dec86

Air quality in Demerval Lobão by month

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see which months the air is worst, not just the yearly 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
Almanac & agriculture

Growing season

Chance of a frost-free dayFrost-free year round

Demerval Lobão is frost-free year round — even the coldest nights rarely reach freezing, so there is no start or end to the growing season.

0%25%50%75%100%JanFebMarAprMayJunJulAugSepOctNovDecfrost-free year round
Frost-free chance (%)Frost nights
Jan1000
Feb1000
Mar1000
Apr1000
May1000
Jun1000
Jul1000
Aug1000
Sep1000
Oct1000
Nov1000
Dec1000

Growing degree days

Degree days (base 10°C)Frost-free shaded

Growing degree days tally heat above 10°C: each day adds however many degrees its average temperature runs over that threshold, and cold days add nothing. Demerval Lobão banks about 6,828 degree days a year, and the running total — which growers use to time plantings and predict maturity — climbs fastest around October.

02,0004,0006,000JanFebMarAprMayJunJulAugSepOctNovDec
Growing degree days (°C·days)
Jan551
Feb483
Mar531
Apr516
May550
Jun548
Jul575
Aug602
Sep614
Oct649
Nov612
Dec598

Solar energy

Average daily shortwave solar energy reaching the ground, banded into brightness zones so the number means something at a glance.

Solar energy is how much sunlight actually reaches the ground each day, measured in kilowatt-hours per square metre (kWh/m²) — the combined effect of how long the sun is up, how high it climbs, and how much cloud gets in the way. It's the raw fuel a solar panel has to work with: for scale, 1 kWh/m² a day is dim and wintry, while 7+ is desert-bright.

Demerval Lobão receives about 5.5 kWh/m² a day of solar energy on average — bright — with a clear seasonal swing between 4.7 and 6.7 kWh/m².

The brighter stretch of the year lasts 5.0 months, from around Jul 21 to Dec 18. The brightest month is October, averaging about 6.6 kWh/m² (intense).

The dimmest month is March, down near 4.9 kWh/m² — roughly 26% less than the October peak.

012345678JanFebMarAprMayJunJulAugSepOctNovDecdimmerbrighterdimmoderatebrightintenseOct 16.7 kWhMar 294.7 kWh
Solar energy (kWh/m²)Level
Jan5.0Bright
Feb5.0Bright
Mar4.8Bright
Apr4.8Bright
May4.9Bright
Jun5.0Bright
Jul5.4Bright
Aug6.1Intense
Sep6.6Intense
Oct6.6Intense
Nov6.1Intense
Dec5.6Bright

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
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).