Climate and average weather in Bacabeira

In Bacabeira, the weather is muggy, 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 June to mid September

Over the course of the year, the temperature in Bacabeira typically varies from 23°C to 34°C, and is rarely below 22°C or above 36°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 Bacabeira for warm-weather activities is from early June to mid September.

Hottest
Oct
34°
Coldest
Mar
24°
Wettest
Mar
437 mm
Driest
Sep
10 mm
Rain / yr
2050 mm
193 wet days
Daylight
11.8–12.2 h
shortest–longest
Elevation
44 m
3.0°S
Clearest
Aug
39% cloud

Bacabeira 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 June to mid September.

Temperature through the year

Average highAverage lowShaded bands: 10–90% of days

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

Temperatures in Bacabeira stay fairly even through the year, without a distinct hot or cool season. The warmest month is October, with an average high of 34°C and low of 25°C; the coolest is March, with an average low of 24°C and high of 31°C.

Days typically run about 8°C warmer than nights year-round.

20°25°30°35°40°JanFebMarAprMayJunJulAugSepOctNovDec
Avg high (°C)Avg low (°C)
Jan3224
Feb3124
Mar3124
Apr3124
May3124
Jun3124
Jul3123
Aug3324
Sep3425
Oct3425
Nov3425
Dec3325

How hot and cold Bacabeira 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, Bacabeira feels like about 39°C (around October 14). Nearly every day a year carries some heat stress, peaking in October.

20°25°30°35°40°JanFebMarAprMayJunJulAugSepOctNovDecdangerous heat
Feels-like high (°C)Air high (°C)Feels-like low (°C)Air low (°C)
Jan36322424
Feb36312424
Mar36312424
Apr37312424
May37312424
Jun36312424
Jul36312323
Aug37332424
Sep38342525
Oct39342525
Nov38342525
Dec38332525

Average hourly temperature in Bacabeira

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 34°C, and coldest before dawn in March, near 24°C.

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

Bacabeira 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° / 24°26225.412.22.6
Feb31° / 24°33025.612.12.5
Mar31° / 24°43730122.4
Apr31° / 24°42628.411.92.5
May31° / 24°25524.111.93.0
Jun31° / 24°9615.711.83.9
Jul31° / 23°579.711.84.5
Aug33° / 24°164.311.94.2
Sep34° / 25°102.6123.6
Oct34° / 25°214.812.13.4
Nov34° / 25°437.112.13.3
Dec33° / 25°9815.412.23.0

Chance of rain

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

Bacabeira gets about 2050 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 5.8 months, from around Dec 18 to Jun 13, peaking in March at about 98% chance on a given day. The drier stretch runs the rest of the year, bottoming out around Sep 8.

March is the wettest month by volume, with 437 mm over about 30 wet days; September is the driest, with 10 mm.

0%10%20%30%40%50%60%70%80%90%100%110%JanFebMarAprMayJunJulAugSepOctNovDecwetterdriermostly drysome rainoften wetvery wetMar 28 · 98%Sep 8 · 8%
Rain on a day (%)Rain days
Jan8225
Feb9126
Mar9630
Apr9428
May7824
Jun5316
Jul3210
Aug134
Sep93
Oct165
Nov237
Dec5015

Monthly rainfall

Over a full year, Bacabeira collects about 2050 mm of rain across 193 wet days — roughly 171 mm in an average month.

It doesn’t fall evenly. March is the wettest month with 437 mm, while September is the driest at just 10 mm. The three wettest months alone bring about 58% of the year’s total.

050100150200250300350400450500JanFebMarAprMayJunJulAugSepOctNovDec26233043742625596571610214398
Rainfall (mm)Rain days
Jan26225
Feb33026
Mar43730
Apr42628
May25524
Jun9616
Jul5710
Aug164
Sep103
Oct215
Nov437
Dec9815

Clouds and sunshine

ClearMostly clearPartly cloudyMostly cloudyOvercast

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

In Bacabeira, 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 June 2 and lasts for 6.2 months, ending around December 6. The clearest month is August, when the sky is clear, mostly clear, or partly cloudy 89% of the time on average.

The cloudier part of the year begins around December 7 and lasts for 5.8 months, ending around June 1. 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%JanFebMarAprMayJunJulAugSepOctNovDecSep 1 · 91%Mar 28 · 5%mostly clearpartly cloudymostly cloudyovercastcloudierclearer
Clearer (%)Cloudier (%)
Jan1684
Feb1387
Mar892
Apr1090
May3268
Jun6337
Jul8119
Aug8911
Sep8911
Oct7525
Nov5446
Dec3961

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, Bacabeira 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)
Jan12.26:026:11
Feb12.16:096:15
Mar12.06:066:08
Apr11.95:595:56
May11.95:585:49
Jun11.86:035:52
Jul11.86:085:58
Aug11.96:045:58
Sep12.05:525:51
Oct12.15:405:44
Nov12.15:385:47
Dec12.25:485:59

Sunny days

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

Bacabeira 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 19 days.

The sunnier stretch runs 5.2 months, from around Jun 7 to Nov 12. The sunniest month is September, with roughly 18 sunny days (bright).

The greyest month is March, down near 1 sunny days — about 97% fewer than the September peak.

0510152025JanFebMarAprMayJunJulAugSepOctNovDecgreyersunniergreyergloomymixedbrightbrilliantSep 119 daysMar 290 days
Sunny daysSky
Jan1Gloomy
Feb1Gloomy
Mar1Gloomy
Apr1Gloomy
May3Gloomy
Jun10Mixed
Jul15Mixed
Aug19Bright
Sep18Bright
Oct14Mixed
Nov8Gloomy
Dec5Gloomy

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.

Bacabeira 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 January, the mildest month, the air is dry or comfortable only 0% of the time.

0%10%20%30%40%50%60%70%80%90%100%JanFebMarAprMayJunJulAugSepOctNovDecmiserableoppressivemuggy
Muggy (%)Oppressive (%)Miserable (%)
Jan08019
Feb06832
Mar05644
Apr04456
May04060
Jun06832
Jul4879
Aug8902
Sep12870
Oct7921
Nov4942
Dec2917

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 Bacabeira is typically calm, near 9 km/h, and varies moderately with the seasons.

The windier part of the year lasts 5.1 months, from around Aug 4 to Jan 6. The windiest month is October, averaging about 12 km/h (light breeze).

The calmer part of the year runs from around Jan 7 to Aug 3, with April the calmest month at about 6 km/h.

05101520JanFebMarAprMayJunJulAugSepOctNovDeccalmerwindiercalmlight breezeOct 9 · 13 km/hApr 24 · 6 km/h
Wind speed (km/h)Feels
Jan8calm
Feb7calm
Mar7calm
Apr6calm
May6calm
Jun7calm
Jul8calm
Aug10calm
Sep12calm
Oct12light breeze
Nov12calm
Dec11calm

Hazard calendar for Bacabeira

In seasonPeak

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

Bacabeira's monsoon runs January–May, 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 Bacabeira

TravelBeach/poolTemperatureCloudsPrecipitation

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

Around early September, Bacabeira 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 Bacabeira for general outdoor tourist activities is from early June to mid September, with a peak score in the last week of July.

0246810JanFebMarAprMayJunJulAugSepOctNovDecbest timetravel scoretemperaturecloudsprecipitationJul 24 · 4.6

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
Jan2.6poor
Feb2.5poor
Mar2.4poor
Apr2.5poor
May3.0poor
Jun3.9fair
Jul4.5fair
Aug4.2fair
Sep3.6fair
Oct3.3poor
Nov3.4poor
Dec3.0poor

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 Bacabeira for hot-weather activities is from late June to early December, with a peak score in the first week of August.

024681012JanFebMarAprMayJunJulAugSepOctNovDecbest timebeach/pool scoretemperaturecloudsprecipitationAug 7 · 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 Bacabeira, 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.

Bacabeira 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 October, Bacabeira sees daytime highs around 34°C and nights near 25°C. Pack light clothes and sun protection. About 5 days see rain.

Sea temperature near Bacabeira

Average ocean temperature at the nearest coast, month by month, banded into swim-comfort zones — the other half of the beach question.

The sea at the nearest coast (about 39 km away) is warmest in May at about 29°C and coldest in October near 28°C.

The water stays above 20°C all year — warm enough for a swim any month.

26°28°30°JanFebMarAprMayJunJulAugSepOctNovDecwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan28Tropical
Feb28Tropical
Mar28Tropical
Apr29Tropical
May29Tropical
Jun29Tropical
Jul28Tropical
Aug28Tropical
Sep28Warm
Oct28Warm
Nov28Warm
Dec28Warm

UV index (midday) in Bacabeira 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 Bacabeira peaks around March 18 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 17 at about 10 (extreme).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeMar 18UV 15Jul 17UV 10
UV index (midday)Level
Jan13Extreme
Feb14Extreme
Mar16Extreme
Apr14Extreme
May11Extreme
Jun10Extreme
Jul10Very high
Aug10Extreme
Sep12Extreme
Oct12Extreme
Nov11Extreme
Dec11Extreme

Average hourly UV index in Bacabeira

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 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
Feb86.5
Mar86.5
Apr86.5
May7.55.5
Jun7.55.5
Jul7.55
Aug7.55.5
Sep7.55.5
Oct86
Nov85.5
Dec7.55.5

Air quality in Bacabeira 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 Bacabeira is worst in February — around 17 µg/m³ PM2.5 (moderate), about 1.9× the cleanest month (June, 9 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodModerateFeb 2017 µg/m³Jun 149 µg/m³
PM2.5 (µg/m³)Level
Jan15Moderate
Feb17Moderate
Mar17Moderate
Apr14Moderate
May10Good
Jun9Good
Jul11Good
Aug10Good
Sep10Good
Oct12Moderate
Nov14Moderate
Dec14Moderate
Almanac & agriculture

Growing season

Chance of a frost-free dayFrost-free year round

Bacabeira 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. Bacabeira banks about 6,600 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)
Jan553
Feb484
Mar530
Apr515
May539
Jun518
Jul539
Aug570
Sep579
Oct605
Nov581
Dec587

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.

Bacabeira receives about 5.3 kWh/m² a day of solar energy on average — bright — with a clear seasonal swing between 4.4 and 6.3 kWh/m².

The brighter stretch of the year lasts 5.3 months, from around Jul 18 to Dec 25. The brightest month is October, averaging about 6.2 kWh/m² (intense).

The dimmest month is March, down near 4.5 kWh/m² — roughly 28% less than the October peak.

01234567JanFebMarAprMayJunJulAugSepOctNovDecdimmerbrighterdimmoderatebrightintenseOct 56.3 kWhMar 304.4 kWh
Solar energy (kWh/m²)Level
Jan4.9Bright
Feb4.8Bright
Mar4.5Bright
Apr4.4Bright
May4.7Bright
Jun5.0Bright
Jul5.2Bright
Aug5.8Bright
Sep6.2Intense
Oct6.3Intense
Nov5.9Bright
Dec5.5Bright

Where is Bacabeira?

Bacabeira sits at 3.0°S, 44.3°W, 44 m above sea level, in Brazil. The nearest listed city is Rosário, 8.0 km away.

Topography around Bacabeira

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

Within 3 km, the terrain around Bacabeira has only modest variations in elevation — a maximum elevation change of 48 m around an average of 29 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 76 m; within 80 km, only modest variations in elevation — a maximum elevation change of 126 m.

The land around Bacabeira is covered by trees (57%) and grassland (37%) within 3 km, trees (42%) within 16 km, and trees (44%) within 80 km.

3 km
48 m
16 km
76 m
80 km
126 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwaterwetlandmangroves
Nearby: Rosário 8.0 km · Santa Rita 19 km · Morros 33 km · Icatu 35 km · Anajatuba 47 km · Itapecuru Mirim 47 km · São Luís 49 km · Paço do Lumiar 54 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 Bacabeira (-2.9708°, -44.3156°, elevation 44 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. Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. 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).