Climate and average weather in Barras

In Barras, 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: early May to mid August

Over the course of the year, the temperature in Barras 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 April is the coldest.

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

Hottest
Oct
37°
Coldest
Apr
23°
Wettest
Mar
387 mm
Driest
Aug
2 mm
Rain / yr
1514 mm
126 wet days
Daylight
11.8–12.2 h
shortest–longest
Elevation
89 m
4.2°S
Clearest
Aug
33% cloud

Barras 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 early May to mid August.

Temperature through the year

Average highAverage lowShaded bands: 10–90% of days

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

Temperatures in Barras 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 26°C; the coolest is April, with an average low of 23°C and high of 32°C.

Days typically run about 10°C warmer than nights, with the widest day–night swing (around 12°C) in September.

20°25°30°35°40°JanFebMarAprMayJunJulAugSepOctNovDec
Avg high (°C)Avg low (°C)
Jan3324
Feb3224
Mar3223
Apr3223
May3224
Jun3324
Jul3424
Aug3524
Sep3725
Oct3726
Nov3726
Dec3626

How hot and cold Barras 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, Barras feels like about 40°C (around November 1). Nearly every day a year carries some heat stress, and 90 of them tip into dangerous heat (feels-like above 39°C), peaking in November.

20°25°30°35°40°JanFebMarAprMayJunJulAugSepOctNovDecdangerous heat
Feels-like high (°C)Air high (°C)Feels-like low (°C)Air low (°C)
Jan38332424
Feb37322424
Mar37322323
Apr37322323
May37322324
Jun36332324
Jul36342424
Aug37352424
Sep38372525
Oct40372526
Nov40372626
Dec39362526

Average hourly temperature in Barras

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 April, near 23°C.

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

Barras 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
Jan33° / 24°22119.712.22.5
Feb32° / 24°28121.412.12.6
Mar32° / 23°38726.1122.5
Apr32° / 23°33924.711.92.7
May32° / 24°15214.511.83.4
Jun33° / 24°244.711.84.0
Jul34° / 24°102.111.83.8
Aug35° / 24°20.511.93.0
Sep37° / 25°20.4122.1
Oct37° / 26°111.112.11.7
Nov37° / 26°183.212.21.7
Dec36° / 26°687.912.22.1

Chance of rain

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

Barras gets about 1514 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 5.1 months, from around Dec 24 to May 26, peaking in March at about 88% chance on a given day. The drier stretch runs the rest of the year, bottoming out around Aug 30.

March is the wettest month by volume, with 387 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 28 · 88%Aug 30 · 1%
Rain on a day (%)Rain days
Jan6320
Feb7621
Mar8426
Apr8125
May4715
Jun175
Jul72
Aug21
Sep20
Oct41
Nov103
Dec278

Monthly rainfall

Over a full year, Barras collects about 1514 mm of rain across 126 wet days — roughly 126 mm in an average month.

It doesn’t fall evenly. March is the wettest month with 387 mm, while August is the driest at just 2 mm. The three wettest months alone bring about 67% of the year’s total.

050100150200250300350400450JanFebMarAprMayJunJulAugSepOctNovDec221281387339152241022111868
Rainfall (mm)Rain days
Jan22120
Feb28121
Mar38726
Apr33925
May15215
Jun245
Jul102
Aug21
Sep20
Oct111
Nov183
Dec688

Clouds and sunshine

ClearMostly clearPartly cloudyMostly cloudyOvercast

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

In Barras, 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 25 and lasts for 6.2 months, ending around November 30. The clearest month is September, when the sky is clear, mostly clear, or partly cloudy 91% of the time on average.

The cloudier part of the year begins around December 1 and lasts for 5.7 months, ending around May 24. The cloudiest month is March, when it is overcast or mostly cloudy 82% 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 4 · 92%Mar 28 · 14%clearmostly clearpartly cloudymostly cloudyovercastcloudierclearercloudier
Clearer (%)Cloudier (%)
Jan2872
Feb2278
Mar1882
Apr2278
May4555
Jun7030
Jul8020
Aug8911
Sep919
Oct8119
Nov6040
Dec4852

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, Barras barely changes through the year: days stay near 12 h 12 min of light in every season.

12 AM4 AM8 AM12 PM4 PM8 PM12 AMJanFebMarAprMayJunJulAugSepOctNovDec
Daylight (h)Sunrise (AM)Sunset (PM)
Jan12.25:526:05
Feb12.16:006:08
Mar12.05:586:00
Apr11.95:525:47
May11.85:515:40
Jun11.85:575:42
Jul11.86:025:48
Aug11.95:575:49
Sep12.05:445:43
Oct12.15:315:37
Nov12.25:295:40
Dec12.25:385:53

Sunny days

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

Barras 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 5.4 months, from around Jun 2 to Nov 13. The sunniest month is September, with roughly 23 sunny days (bright).

The greyest month is March, down near 2 sunny days — about 91% fewer than the September peak.

0510152025JanFebMarAprMayJunJulAugSepOctNovDecgreyersunniergreyergloomymixedbrightbrilliantSep 423 daysMar 301 days
Sunny daysSky
Jan3Gloomy
Feb2Gloomy
Mar2Gloomy
Apr2Gloomy
May7Gloomy
Jun13Mixed
Jul17Bright
Aug22Bright
Sep22Bright
Oct19Bright
Nov11Mixed
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.

Barras 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 98% of the time. Even in August, the mildest month, the air is dry or comfortable only 8% of the time.

0%10%20%30%40%50%60%70%80%90%100%JanFebMarAprMayJunJulAugSepOctNovDecAug 16 · 9%Jan 1 · 0%miserablemuggyoppressivehumidcomfortablehumidcomfortablehumid
Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
Jan0214795
Feb0038413
Mar0017524
Apr0006436
May0057223
Jun0537561
Jul42555160
Aug8405020
Sep6405210
Oct3335760
Nov12361150
Dec01348371

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 Barras is typically calm, near 8 km/h, and varies moderately with the seasons.

The windier part of the year lasts 6.5 months, from around Jun 17 to Dec 30. The windiest month is October, averaging about 11 km/h (calm).

The calmer part of the year runs from around Dec 31 to Jun 16, with April the calmest month at about 6 km/h.

051015JanFebMarAprMayJunJulAugSepOctNovDeccalmerwindiercalmlight breezeOct 11 · 11 km/hApr 1 · 5 km/h
Wind speed (km/h)Feels
Jan7calm
Feb6calm
Mar6calm
Apr6calm
May6calm
Jun8calm
Jul9calm
Aug10calm
Sep10calm
Oct11calm
Nov10calm
Dec9calm

Hazard calendar for Barras

In seasonPeak

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

Barras'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 Barras

TravelBeach/poolTemperatureCloudsPrecipitation

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

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

0246810JanFebMarAprMayJunJulAugSepOctNovDecbest timetravel scoretemperaturecloudsprecipitationJun 12 · 4.0

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
Jan2.5poor
Feb2.6poor
Mar2.5poor
Apr2.7poor
May3.4poor
Jun4.0fair
Jul3.8fair
Aug3.0poor
Sep2.1poor
Oct1.7poor
Nov1.7poor
Dec2.1poor

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 Barras for hot-weather activities is from late May to early September, with a peak score in the third week of July.

024681012JanFebMarAprMayJunJulAugSepOctNovDecbest timebeach/pool scoretemperaturecloudsprecipitationJul 19 · 7.4

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 Barras, 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.

Barras 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, Barras sees daytime highs around 37°C and nights near 26°C. Pack light clothes and sun protection.

UV index (midday) in Barras 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 Barras peaks around March 14 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 17 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 14UV 15Jul 17UV 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 Barras

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
May7.55.5
Jun7.55
Jul75
Aug7.55
Sep86
Oct86
Nov85.5
Dec86

Air quality in Barras 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 Barras is worst in November — around 16 µg/m³ PM2.5 (moderate), about 3.6× the cleanest month (July, 4 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodModerateNov 1816 µg/m³Jul 155 µg/m³
PM2.5 (µg/m³)Level
Jan12Good
Feb13Moderate
Mar12Moderate
Apr11Good
May8Good
Jun6Good
Jul4Good
Aug6Good
Sep7Good
Oct12Moderate
Nov16Moderate
Dec14Moderate
Almanac & agriculture

Growing season

Chance of a frost-free dayFrost-free year round

Barras 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. Barras banks about 7,004 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)
Jan580
Feb501
Mar544
Apr524
May553
Jun547
Jul579
Aug608
Sep622
Oct663
Nov641
Dec642

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.

Barras receives about 5.8 kWh/m² a day of solar energy on average — bright — with a clear seasonal swing between 4.9 and 6.9 kWh/m².

The brighter stretch of the year lasts 5.1 months, from around Jul 26 to Dec 26. The brightest month is October, averaging about 6.9 kWh/m² (intense).

The dimmest month is April, down near 5.0 kWh/m² — roughly 28% less than the October peak.

012345678JanFebMarAprMayJunJulAugSepOctNovDecdimmerbrighterdimmoderatebrightintenseOct 66.9 kWhApr 274.9 kWh
Solar energy (kWh/m²)Level
Jan5.3Bright
Feb5.3Bright
Mar5.2Bright
Apr5.0Bright
May5.1Bright
Jun5.2Bright
Jul5.5Bright
Aug6.2Intense
Sep6.8Intense
Oct6.9Intense
Nov6.5Intense
Dec6.0Intense

Where is Barras?

Barras sits at 4.2°S, 42.3°W, 89 m above sea level, in Brazil. The nearest listed city is Batalha, 34 km away.

Topography around Barras

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

Within 3 km, the terrain around Barras has only modest variations in elevation — a maximum elevation change of 35 m around an average of 93 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 67 m; within 80 km, significant variations in elevation — a maximum elevation change of 454 m.

The land around Barras is covered by grassland (34%), trees (32%) and shrubs (20%) within 3 km, trees (40%), grassland (38%) and shrubs (21%) within 16 km, and trees (55%) and grassland (24%) within 80 km.

3 km
35 m
16 km
67 m
80 km
454 m
treesshrubsgrasslandartificial surfaceswater
Nearby: Batalha 34 km · Esperantina 39 km · Piripiri 57 km · José de Freitas 65 km · Campo Maior 66 km · Miguel Alves 67 km · União 74 km · Piracuruca 74 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 Barras (-4.2444°, -42.2944°, elevation 89 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).