Climate and average weather in Acará

In Acará, the weather is muggy, sweltering, wet, and partly cloudy and remarkably steady, with daytime highs holding near sweltering levels all year. The wettest stretch peaks around April.

Best: early June to late September

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

Hottest
Oct
34°
Coldest
Apr
23°
Wettest
Apr
377 mm
Driest
Sep
22 mm
Rain / yr
1894 mm
211 wet days
Daylight
11.9–12.1 h
shortest–longest
Elevation
6 m
2.0°S
Clearest
Aug
44% cloud

Acará is human settlement in Brazil.

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

Acará 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 late September.

Temperature through the year

Average highAverage lowShaded bands: 10–90% of days

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

Temperatures in Acará 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 23°C; the coolest is April, 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 11°C) in September.

20°25°30°35°40°JanFebMarAprMayJunJulAugSepOctNovDec
Avg high (°C)Avg low (°C)
Jan3223
Feb3123
Mar3023
Apr3023
May3123
Jun3123
Jul3222
Aug3423
Sep3423
Oct3423
Nov3424
Dec3324

How hot and cold Acará 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, Acará 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)
Jan36322323
Feb36312323
Mar36302323
Apr36302323
May37312323
Jun37312323
Jul36322222
Aug38342323
Sep39342323
Oct39342323
Nov39342424
Dec38332324

Average hourly temperature in Acará

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 April, near 23°C.

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

Acará 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°22025.612.12.6
Feb31° / 23°29525.812.12.6
Mar30° / 23°37629.9122.5
Apr30° / 23°37728.9122.5
May31° / 23°23926.311.92.8
Jun31° / 23°9918.811.93.4
Jul32° / 22°5512.411.93.8
Aug34° / 23°26711.93.6
Sep34° / 23°225.7123.3
Oct34° / 23°296.9123.1
Nov34° / 24°537.812.13.1
Dec33° / 24°1051612.12.9

Chance of rain

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

Acará gets about 1894 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 6.1 months, from around Dec 20 to Jun 22, peaking in March at about 98% chance on a given day. The drier stretch runs the rest of the year, bottoming out around Sep 21.

April is the wettest month by volume, with 377 mm over about 29 wet days; September is the driest, with 22 mm.

0%10%20%30%40%50%60%70%80%90%100%110%JanFebMarAprMayJunJulAugSepOctNovDecwetterdriermostly drysome rainoften wetvery wetMar 29 · 98%Sep 21 · 19%
Rain on a day (%)Rain days
Jan8226
Feb9226
Mar9630
Apr9629
May8426
Jun6319
Jul4012
Aug227
Sep196
Oct237
Nov268
Dec5216

Monthly rainfall

Over a full year, Acará collects about 1894 mm of rain across 211 wet days — roughly 158 mm in an average month.

It doesn’t fall evenly. April is the wettest month with 377 mm, while September is the driest at just 22 mm. The three wettest months alone bring about 55% of the year’s total.

050100150200250300350400450JanFebMarAprMayJunJulAugSepOctNovDec220295376377239995526222953105
Rainfall (mm)Rain days
Jan22026
Feb29526
Mar37630
Apr37729
May23926
Jun9919
Jul5512
Aug267
Sep226
Oct297
Nov538
Dec10516

Clouds and sunshine

ClearMostly clearPartly cloudyMostly cloudyOvercast

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

In Acará, 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 30 and lasts for 6.1 months, ending around December 2. The clearest month is August, when the sky is clear, mostly clear, or partly cloudy 80% of the time on average.

The cloudier part of the year begins around December 3 and lasts for 5.8 months, ending around May 29. The cloudiest month is April, when it is overcast or mostly cloudy 93% 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 8 · 81%Mar 31 · 5%mostly clearpartly cloudymostly cloudyovercastcloudierclearercloudier
Clearer (%)Cloudier (%)
Jan1486
Feb1090
Mar892
Apr793
May2773
Jun5941
Jul7525
Aug8020
Sep7624
Oct5941
Nov4456
Dec3169

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, Acará barely changes through the year: days stay near 12 h 06 min of light in every season.

12 AM4 AM8 AM12 PM4 PM8 PM12 AMJanFebMarAprMayJunJulAugSepOctNovDec
Daylight (h)Sunrise (AM)Sunset (PM)
Jan12.16:196:25
Feb12.16:256:29
Mar12.06:226:23
Apr12.06:146:12
May11.96:126:06
Jun11.96:166:10
Jul11.96:226:15
Aug11.96:196:15
Sep12.06:076:07
Oct12.05:575:59
Nov12.15:556:01
Dec12.16:066:12

Sunny days

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

Acará averages about 6 sunny days a month — counting the days the sky stays clear or mostly clear — with a clear seasonal swing between 0 and 16 days.

The sunnier stretch runs 4.9 months, from around Jun 1 to Oct 28. The sunniest month is July, with roughly 14 sunny days (mixed).

The greyest month is March, down near 0 sunny days — about 98% fewer than the July peak.

05101520JanFebMarAprMayJunJulAugSepOctNovDecgreyersunniergreyergloomymixedbrightJul 3016 daysMar 250 days
Sunny daysSky
Jan1Gloomy
Feb0Gloomy
Mar0Gloomy
Apr0Gloomy
May3Gloomy
Jun8Mixed
Jul14Mixed
Aug15Mixed
Sep11Mixed
Oct7Gloomy
Nov4Gloomy
Dec3Gloomy

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.

Acará 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 (%)
Jan07822
Feb06733
Mar05446
Apr03565
May03169
Jun06832
Jul4915
Aug8902
Sep10891
Oct11881
Nov7902
Dec38810

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 Acará is typically calm, near 7 km/h, and varies little with the seasons.

The windier part of the year lasts 5.5 months, from around Jul 14 to Dec 27. The windiest month is September, averaging about 9 km/h (calm).

The calmer part of the year runs from around Dec 28 to Jul 13, with April the calmest month at about 5 km/h.

051015JanFebMarAprMayJunJulAugSepOctNovDeccalmerwindiercalmlight breezeSep 23 · 9 km/hApr 20 · 5 km/h
Wind speed (km/h)Feels
Jan6calm
Feb6calm
Mar6calm
Apr5calm
May6calm
Jun6calm
Jul7calm
Aug8calm
Sep9calm
Oct9calm
Nov9calm
Dec8calm

Hazard calendar for Acará

In seasonPeak

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

Acará'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 Acará

TravelBeach/poolTemperatureCloudsPrecipitation

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

Around late September, Acará 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 Acará for general outdoor tourist activities is from early June to early October, with a peak score in the third week of July.

0246810JanFebMarAprMayJunJulAugSepOctNovDecbest timetravel scoretemperaturecloudsprecipitationJul 21 · 3.9

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
Feb2.6poor
Mar2.5poor
Apr2.5poor
May2.8poor
Jun3.4poor
Jul3.8fair
Aug3.6fair
Sep3.3poor
Oct3.0poor
Nov3.1poor
Dec2.9poor

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 Acará for hot-weather activities is from late June to mid December, with a peak score in the third week of August.

024681012JanFebMarAprMayJunJulAugSepOctNovDecbest timebeach/pool scoretemperaturecloudsprecipitationAug 20 · 6.8

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 Acará, 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.

Acará 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, Acará sees daytime highs around 34°C and nights near 23°C. Pack light clothes and sun protection. About 7 days see rain.

UV index (midday) in Acará 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 Acará peaks around March 16 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near November 22 at about 10 (extreme).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeMar 16UV 15Nov 22UV 10
UV index (midday)Level
Jan13Extreme
Feb14Extreme
Mar15Extreme
Apr14Extreme
May12Extreme
Jun11Extreme
Jul10Extreme
Aug10Extreme
Sep12Extreme
Oct11Extreme
Nov10Extreme
Dec10Extreme

Average hourly UV index in Acará

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
Oct7.55.5
Nov7.55.5
Dec7.55.5

Air quality in Acará 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 Acará is worst in November — around 32 µg/m³ PM2.5 (moderate), about 3.4× the cleanest month (June, 9 µg/m³).

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodModerateNov 1931 µg/m³Jun 1410 µg/m³
PM2.5 (µg/m³)Level
Jan17Moderate
Feb18Moderate
Mar18Moderate
Apr15Moderate
May10Good
Jun9Good
Jul11Good
Aug14Moderate
Sep16Moderate
Oct19Moderate
Nov32Moderate
Dec27Moderate
Almanac & agriculture

Growing season

Chance of a frost-free dayFrost-free year round

Acará 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. Acará banks about 6,415 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)
Jan535
Feb470
Mar515
Apr497
May524
Jun510
Jul534
Aug561
Sep559
Oct582
Nov562
Dec565

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.

Acará receives about 5.0 kWh/m² a day of solar energy on average — bright — with a clear seasonal swing between 4.0 and 6.2 kWh/m².

The brighter stretch of the year lasts 5.5 months, from around Jul 7 to Dec 20. The brightest month is October, averaging about 6.1 kWh/m² (intense).

The dimmest month is April, down near 4.1 kWh/m² — roughly 34% less than the October peak.

01234567JanFebMarAprMayJunJulAugSepOctNovDecdimmerbrighterdimmoderatebrightintenseOct 26.2 kWhApr 44.0 kWh
Solar energy (kWh/m²)Level
Jan4.5Bright
Feb4.3Bright
Mar4.2Bright
Apr4.1Bright
May4.4Bright
Jun4.8Bright
Jul5.2Bright
Aug5.7Bright
Sep6.1Intense
Oct6.2Intense
Nov5.8Bright
Dec5.2Bright

Where is Acará?

Acará sits at 2.0°S, 48.2°W, 6 m above sea level, in Brazil. The nearest listed city is Concórdia do Pará, 28 km away.

Topography around Acará

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

Within 3 km, the terrain around Acará has only modest variations in elevation — a maximum elevation change of 60 m around an average of 19 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 88 m.

The land around Acará is covered by trees (76%) within 3 km, trees (91%) within 16 km, and trees (78%) within 80 km.

3 km
60 m
16 km
76 m
80 km
88 m
treesgrasslandartificial surfaceswater
Nearby: Concórdia do Pará 28 km · Tomé-Açu 51 km · Bujaru 52 km · São Domingos do Capim 57 km · Moju 64 km · Belém 66 km · Benevides 67 km · Ananindeua 69 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 Acará (-1.9608°, -48.1967°, elevation 6 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).