Climate and average weather in Marabá

In Marabá, 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: mid May to mid October

Over the course of the year, the temperature in Marabá typically varies from 22°C to 34°C, and is rarely below 20°C or above 36°C. August is the hottest month of the year, while January is the coldest.

Based on the travel score, the best time of year to visit Marabá for warm-weather activities is from mid May to mid October.

Hottest
Aug
34°
Coldest
Jan
23°
Wettest
Mar
296 mm
Driest
Aug
6 mm
Rain / yr
1684 mm
192 wet days
Daylight
11.7–12.3 h
shortest–longest
Elevation
95 m
5.4°S
Clearest
Aug
30% cloud

Marabá is human settlement in Brazil.

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Marabá 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 mid May to mid October.

Temperature through the year

Average highAverage lowShaded bands: 10–90% of days

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

Temperatures in Marabá stay fairly even through the year, without a distinct hot or cool season. The warmest month is August, with an average high of 34°C and low of 23°C; the coolest is January, with an average low of 23°C and high of 30°C.

Days typically run about 9°C warmer than nights, with the widest day–night swing (around 12°C) in August.

20°25°30°35°40°JanFebMarAprMayJunJulAugSepOctNovDec
Avg high (°C)Avg low (°C)
Jan3023
Feb3023
Mar3023
Apr3023
May3123
Jun3222
Jul3322
Aug3423
Sep3424
Oct3324
Nov3123
Dec3123

How hot and cold Marabá 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, Marabá feels like about 38°C (around September 30). Nearly every day a year carries some heat stress, peaking in September.

20°25°30°35°40°JanFebMarAprMayJunJulAugSepOctNovDecdangerous heat
Feels-like high (°C)Air high (°C)Feels-like low (°C)Air low (°C)
Jan35302323
Feb34302323
Mar35302323
Apr36302323
May37312323
Jun36322222
Jul36332222
Aug37342223
Sep38342324
Oct38332424
Nov37312323
Dec36312323

Average hourly temperature in Marabá

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 August afternoons, near 34°C, and coldest before dawn in January, near 23°C.

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

Marabá 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
Jan30° / 23°28028.412.32.8
Feb30° / 23°2712612.22.7
Mar30° / 23°29628.6122.7
Apr30° / 23°22125.311.92.9
May31° / 23°12116.811.83.7
Jun32° / 22°255.111.74.5
Jul33° / 22°122.311.74.2
Aug34° / 23°61.311.83.8
Sep34° / 24°213.9123.7
Oct33° / 24°7011.112.13.5
Nov31° / 23°14818.512.23.3
Dec31° / 23°21524.612.33.1

Chance of rain

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

Marabá gets about 1684 mm of precipitation a year. On a typical day the chance of rain is very wet, but that rises and falls sharply with the seasons.

The wetter season lasts 6.4 months, from around Nov 2 to May 16, peaking in February at about 94% chance on a given day. The drier stretch runs the rest of the year, bottoming out around Aug 2.

March is the wettest month by volume, with 296 mm over about 29 wet days; August is the driest, with 6 mm.

0%10%20%30%40%50%60%70%80%90%100%JanFebMarAprMayJunJulAugSepOctNovDecwetterdrierwettermostly drysome rainoften wetvery wetFeb 14 · 94%Aug 2 · 3%
Rain on a day (%)Rain days
Jan9228
Feb9326
Mar9229
Apr8425
May5417
Jun185
Jul82
Aug41
Sep134
Oct3611
Nov6119
Dec7925

Monthly rainfall

Over a full year, Marabá collects about 1684 mm of rain across 192 wet days — roughly 140 mm in an average month.

It doesn’t fall evenly. March is the wettest month with 296 mm, while August is the driest at just 6 mm. The three wettest months alone bring about 50% of the year’s total.

050100150200250300350JanFebMarAprMayJunJulAugSepOctNovDec280271296221121251262170148215
Rainfall (mm)Rain days
Jan28028
Feb27126
Mar29629
Apr22125
May12117
Jun255
Jul122
Aug61
Sep214
Oct7011
Nov14819
Dec21525

Clouds and sunshine

ClearMostly clearPartly cloudyMostly cloudyOvercast

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

In Marabá, 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 5.3 months, ending around October 25. The clearest month is July, when the sky is clear, mostly clear, or partly cloudy 87% of the time on average.

The cloudier part of the year begins around October 26 and lasts for 6.7 months, ending around May 17. The cloudiest month is March, when it is overcast or mostly cloudy 92% 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%JanFebMarAprMayJunJulAugSepOctNovDecAug 1 · 91%Mar 12 · 7%clearmostly clearpartly cloudymostly cloudyovercastcloudierclearercloudier
Clearer (%)Cloudier (%)
Jan991
Feb1090
Mar892
Apr1684
May4060
Jun7426
Jul8713
Aug8713
Sep7723
Oct5347
Nov2674
Dec1783

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, Marabá 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)
Jan12.36:176:34
Feb12.26:266:36
Mar12.06:256:27
Apr11.96:206:13
May11.86:206:05
Jun11.76:266:07
Jul11.76:316:14
Aug11.86:266:15
Sep12.06:126:10
Oct12.15:586:05
Nov12.25:546:09
Dec12.36:036:22

Sunny days

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

Marabá averages about 8 sunny days a month — counting the days the sky stays clear or mostly clear — with a clear seasonal swing between 0 and 24 days.

The sunnier stretch runs 4.8 months, from around May 25 to Oct 17. The sunniest month is August, with roughly 22 sunny days (bright).

The greyest month is January, down near 1 sunny days — about 98% fewer than the August peak.

051015202530JanFebMarAprMayJunJulAugSepOctNovDecgreyersunniergreyergloomymixedbrightbrilliantAug 324 daysJan 230 days
Sunny daysSky
Jan1Gloomy
Feb1Gloomy
Mar1Gloomy
Apr1Gloomy
May6Gloomy
Jun15Bright
Jul21Bright
Aug23Bright
Sep17Bright
Oct9Mixed
Nov3Gloomy
Dec2Gloomy

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.

Marabá is humid all year round — on a typical day the air feels at least humid, and there is no real dry season to wait for.

The stickiest month is January, when it feels muggy, oppressive or miserable about 100% of the time. Even in August, the mildest month, the air is dry or comfortable only 2% of the time.

0%10%20%30%40%50%60%70%80%90%100%JanFebMarAprMayJunJulAugSepOctNovDecmiserablemuggyoppressivehumid
Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
Jan0006832
Feb0006931
Mar0005743
Apr0004060
May0014456
Jun03216511
Jul11944370
Aug21946330
Sep0329671
Oct0038412
Nov0006337
Dec0006238

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 Marabá is typically calm, near 6 km/h, and varies little with the seasons.

The windier part of the year lasts 4.8 months, from around Jun 2 to Oct 26. The windiest month is August, averaging about 7 km/h (calm).

The calmer part of the year runs from around Oct 27 to Jun 1, with April the calmest month at about 5 km/h.

051015JanFebMarAprMayJunJulAugSepOctNovDeccalmerwindiercalmercalmlight breezeAug 10 · 8 km/hApr 10 · 5 km/h
Wind speed (km/h)Feels
Jan5calm
Feb5calm
Mar5calm
Apr5calm
May5calm
Jun6calm
Jul7calm
Aug7calm
Sep7calm
Oct6calm
Nov5calm
Dec5calm

Hazard calendar for Marabá

In seasonPeak

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

Marabá's monsoon runs November–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 Marabá

TravelBeach/poolTemperatureCloudsPrecipitation

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

Around early October, Marabá 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 Marabá for general outdoor tourist activities is from mid May to early October, with a peak score in the second week of June.

0246810JanFebMarAprMayJunJulAugSepOctNovDecbest timetravel scoretemperaturecloudsprecipitationJun 14 · 4.5

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
Jan2.8poor
Feb2.7poor
Mar2.7poor
Apr2.9poor
May3.7fair
Jun4.4fair
Jul4.2fair
Aug3.8fair
Sep3.7fair
Oct3.5fair
Nov3.3poor
Dec3.1poor

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 Marabá for hot-weather activities is from late May to mid October, with a peak score in the last week of July.

024681012JanFebMarAprMayJunJulAugSepOctNovDecbest timebeach/pool scoretemperaturecloudsprecipitationJul 29 · 7.8

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 Marabá, 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.

Marabá packs about the same all year — highs hold near 34°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 August, Marabá sees daytime highs around 34°C and nights near 23°C. Pack light clothes. Worth having: sun protection.

UV index (midday) in Marabá 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 Marabá peaks around March 12 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 12 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 12UV 15Jul 12UV 10
UV index (midday)Level
Jan13Extreme
Feb15Extreme
Mar15Extreme
Apr13Extreme
May11Extreme
Jun10Very high
Jul10Very high
Aug11Extreme
Sep12Extreme
Oct11Extreme
Nov10Extreme
Dec10Very high

Average hourly UV index in Marabá

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 6.5 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)
Jan86.5
Feb8.56.5
Mar8.56.5
Apr86.5
May7.55.5
Jun7.55
Jul75
Aug7.55.5
Sep86
Oct86
Nov7.55.5
Dec7.55.5

Air quality in Marabá 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 Marabá is worst in October — around 37 µg/m³ PM2.5 (poor), about 5.7× the cleanest month (June, 7 µg/m³).

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodModerateModerateOct 1636 µg/m³Jun 227 µg/m³
PM2.5 (µg/m³)Level
Jan13Moderate
Feb13Moderate
Mar12Moderate
Apr12Moderate
May9Good
Jun7Good
Jul7Good
Aug17Moderate
Sep30Moderate
Oct37Poor
Nov28Moderate
Dec18Moderate
Almanac & agriculture

Growing season

Chance of a frost-free dayFrost-free year round

Marabá 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. Marabá banks about 6,297 degree days a year, and the running total — which growers use to time plantings and predict maturity — climbs fastest around September.

02,0004,0006,000JanFebMarAprMayJunJulAugSepOctNovDec
Growing degree days (°C·days)
Jan506
Feb457
Mar510
Apr501
May526
Jun518
Jul547
Aug567
Sep559
Oct564
Nov522
Dec520

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.

Marabá receives about 5.1 kWh/m² a day of solar energy on average — bright — with a clear seasonal swing between 4.3 and 6.2 kWh/m².

The brighter stretch of the year lasts 5.6 months, from around Jun 18 to Dec 4. The brightest month is September, averaging about 6.2 kWh/m² (intense).

The dimmest month is March, down near 4.3 kWh/m² — roughly 30% less than the September peak.

01234567JanFebMarAprMayJunJulAugSepOctNovDecdimmerbrighterdimmerdimmoderatebrightintenseSep 226.2 kWhMar 264.3 kWh
Solar energy (kWh/m²)Level
Jan4.5Bright
Feb4.3Bright
Mar4.3Bright
Apr4.4Bright
May4.7Bright
Jun5.1Bright
Jul5.4Bright
Aug5.9Bright
Sep6.2Intense
Oct6.0Intense
Nov5.4Bright
Dec4.9Bright

Where is Marabá?

Marabá sits at 5.4°S, 49.1°W, 95 m above sea level, in Brazil. The nearest listed city is Itupiranga, 35 km away.

Topography around Marabá

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

Within 3 km, the terrain around Marabá has only modest variations in elevation — a maximum elevation change of 60 m around an average of 92 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 104 m; within 80 km, significant variations in elevation — a maximum elevation change of 520 m.

The land around Marabá is covered by artificial surfaces (36%), trees (31%) and grassland (26%) within 3 km, trees (47%) and grassland (41%) within 16 km, and grassland (58%) and trees (39%) within 80 km.

3 km
60 m
16 km
104 m
80 km
520 m
treesgrasslandartificial surfacesbare terrainwater
Nearby: Itupiranga 35 km · São Domingos do Araguaia 47 km · Bom Jesus do Tocantins 69 km · Eldorado dos Carajás 84 km · Curionópolis 95 km · Jacundá 104 km · Parauapebas 114 km · Araguatins 117 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 Marabá (-5.3815°, -49.1323°, elevation 95 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).