Climate and average weather in Alagoinhas

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

Best: mid May to late October

Over the course of the year, the temperature in Alagoinhas typically varies from 19°C to 32°C, and is rarely below 18°C or above 35°C. January is the hottest month of the year, while July is the coldest.

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

Hottest
Jan
32°
Coldest
Jul
19°
Wettest
May
95 mm
Driest
Sep
37 mm
Rain / yr
709 mm
169 wet days
Daylight
11.3–12.7 h
shortest–longest
Elevation
158 m
12.1°S
Clearest
Oct
54% cloud

Alagoinhas is main settlement in the municipality of the same name.

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

Alagoinhas 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 late October.

Temperature through the year

Average highAverage lowShaded bands: 10–90% of days

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

Temperatures in Alagoinhas stay fairly even through the year, without a distinct hot or cool season. The warmest month is January, with an average high of 32°C and low of 23°C; the coolest is July, with an average low of 19°C and high of 26°C.

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

15°20°25°30°35°40°JanFebMarAprMayJunJulAugSepOctNovDec
Avg high (°C)Avg low (°C)
Jan3223
Feb3223
Mar3223
Apr3022
May2821
Jun2720
Jul2619
Aug2719
Sep2820
Oct3021
Nov3122
Dec3223

How hot and cold Alagoinhas 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, Alagoinhas feels like about 36°C (around March 7). About 197 days a year carry some heat stress, peaking in March.

15°20°25°30°35°40°JanFebMarAprMayJunJulAugSepOctNovDec
Feels-like high (°C)Air high (°C)Feels-like low (°C)Air low (°C)
Jan35322323
Feb36322323
Mar36322323
Apr34302222
May31282121
Jun27272020
Jul26261919
Aug27271919
Sep30282020
Oct32302121
Nov34312222
Dec35322323

Average hourly temperature in Alagoinhas

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 January afternoons, near 32°C, and coldest before dawn in July, near 19°C.

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

Alagoinhas 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°571112.63.8
Feb32° / 23°5211.912.43.6
Mar32° / 23°6514.812.13.6
Apr30° / 22°8118.811.73.9
May28° / 21°9519.811.44.7
Jun27° / 20°7820.111.35.1
Jul26° / 19°621811.45.5
Aug27° / 19°4916.511.65.6
Sep28° / 20°371211.95.7
Oct30° / 21°378.412.35.1
Nov31° / 22°529.112.64.4
Dec32° / 23°458.112.74.2

Chance of rain

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

Alagoinhas gets about 709 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 5.7 months, from around Mar 16 to Sep 4, peaking in June at about 67% chance on a given day. The drier stretch runs the rest of the year, bottoming out around Dec 16.

May is the wettest month by volume, with 95 mm over about 20 wet days; September is the driest, with 37 mm.

0%10%20%30%40%50%60%70%80%JanFebMarAprMayJunJulAugSepOctNovDecdrierwetterdriermostly drysome rainoften wetvery wetJun 14 · 67%Dec 16 · 26%
Rain on a day (%)Rain days
Jan3511
Feb4212
Mar4815
Apr6319
May6420
Jun6620
Jul5918
Aug5417
Sep4012
Oct288
Nov299
Dec278

Monthly rainfall

Over a full year, Alagoinhas collects about 709 mm of rain across 169 wet days — roughly 59 mm in an average month.

It doesn’t fall evenly. May is the wettest month with 95 mm, while September is the driest at just 37 mm. The three wettest months alone bring about 36% of the year’s total.

0255075100125JanFebMarAprMayJunJulAugSepOctNovDec575265819578624937375245
Rainfall (mm)Rain days
Jan5711
Feb5212
Mar6515
Apr8119
May9520
Jun7820
Jul6218
Aug4917
Sep3712
Oct378
Nov529
Dec458

Clouds and sunshine

ClearMostly clearPartly cloudyMostly cloudyOvercast

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

In Alagoinhas, the average share of the sky covered by clouds shows moderate seasonal variation over the course of the year.

The clearer part of the year begins around August 21 and lasts for 2.4 months, ending around November 1. The clearest month is September, when the sky is clear, mostly clear, or partly cloudy 63% of the time on average.

The cloudier part of the year begins around February 12 and lasts for 3.9 months, ending around June 10. The cloudiest month is November, when it is overcast or mostly cloudy 50% 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 27 · 67%Apr 26 · 47%mostly clearpartly cloudymostly cloudyovercastcloudierclearercloudier
Clearer (%)Cloudier (%)
Jan5248
Feb5446
Mar5347
Apr5050
May5050
Jun5644
Jul5941
Aug5545
Sep6337
Oct6139
Nov5050
Dec5248

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. The longest day, around January 1, brings about 12 h 42 min of light; the shortest, around May 31, only 11 h 18 min — a swing of roughly 1 h 24 min.

12 AM4 AM8 AM12 PM4 PM8 PM12 AMJanFebMarAprMayJunJulAugSepOctNovDec
Daylight (h)Sunrise (AM)Sunset (PM)
Jan12.65:246:02
Feb12.45:366:00
Mar12.15:415:46
Apr11.75:425:26
May11.45:475:13
Jun11.35:555:13
Jul11.45:595:20
Aug11.65:505:26
Sep11.95:305:26
Oct12.35:105:27
Nov12.65:025:36
Dec12.75:095:51

Sunny days

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

Alagoinhas averages about 7 sunny days a month — counting the days the sky stays clear or mostly clear — with a clear seasonal swing between 4 and 9 days.

The sunnier stretch runs 1.8 months, from around Sep 17 to Nov 10. The sunniest month is October, with roughly 9 sunny days (mixed).

The greyest month is August, down near 5 sunny days — about 40% fewer than the October peak.

051015JanFebMarAprMayJunJulAugSepOctNovDecgreyersunniergreyergloomymixedOct 59 daysAug 104 days
Sunny daysSky
Jan8Gloomy
Feb7Gloomy
Mar8Gloomy
Apr6Gloomy
May5Gloomy
Jun6Gloomy
Jul6Gloomy
Aug5Gloomy
Sep7Gloomy
Oct9Mixed
Nov7Gloomy
Dec7Gloomy

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.

Alagoinhas 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 September, the mildest month, the air is dry or comfortable only 1% of the time.

0%10%20%30%40%50%60%70%80%90%100%JanFebMarAprMayJunJulAugSepOctNovDecoppressivemuggyhumid
Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
Jan0044560
Feb0030700
Mar0019801
Apr0015841
May0128720
Jun0363350
Jul0128180
Aug0197920
Sep1128350
Oct0775180
Nov0262360
Dec0149500

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.

Wind in Alagoinhas is steady company: average speeds sit near 10 km/hcalm — in every month of the year, with no meaningful windy or calm season.

051015JanFebMarAprMayJunJulAugSepOctNovDeccalmlight breezeOct 27 · 12 km/hApr 5 · 9 km/h
Wind speed (km/h)Feels
Jan10calm
Feb10calm
Mar9calm
Apr9calm
May10calm
Jun10calm
Jul10calm
Aug10calm
Sep11calm
Oct11calm
Nov11calm
Dec11calm

Best time to visit Alagoinhas

TravelBeach/poolTemperatureCloudsPrecipitation

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

Around late May, Alagoinhas is still near the start of its best-weather window — great conditions with the peak-season crowds not yet at full swing.

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 Alagoinhas for general outdoor tourist activities is from mid May to late October, with a peak score in the first week of September.

0246810JanFebMarAprMayJunJulAugSepOctNovDecbest timetravel scoretemperaturecloudsprecipitationSep 1 · 5.9

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
Jan3.8fair
Feb3.6fair
Mar3.6fair
Apr3.9fair
May4.7fair
Jun5.1fair
Jul5.5fair
Aug5.6good
Sep5.7good
Oct5.1fair
Nov4.5fair
Dec4.2fair

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 Alagoinhas for hot-weather activities is from late August to mid March, with a peak score in the first week of October.

024681012JanFebMarAprMayJunJulAugSepOctNovDecbest timebest timebeach/pool scoretemperaturecloudsprecipitationOct 2 · 7.2

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 Alagoinhas, 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.

Alagoinhas packs about the same all year — highs hold near 32°C. Across the year the things worth having are light clothes, rain gear and sun protection.

Light clothing
Warm layer
Winter coat
Rain gear
Sun protection
Windbreaker

In January, Alagoinhas sees daytime highs around 32°C and nights near 23°C. Pack light clothes. Worth having: rain gear and sun protection. About 11 days see rain.

Sea temperature near Alagoinhas

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 65 km away) is warmest in April at about 28°C and coldest in August near 25°C.

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

24°26°28°30°JanFebMarAprMayJunJulAugSepOctNovDecrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan27Warm
Feb28Warm
Mar28Tropical
Apr28Tropical
May28Warm
Jun27Warm
Jul26Warm
Aug25Warm
Sep26Warm
Oct26Warm
Nov26Warm
Dec27Warm

UV index (midday) in Alagoinhas 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 Alagoinhas peaks around February 17 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 22 at about 9 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highExtremeFeb 17UV 15Jun 22UV 9
UV index (midday)Level
Jan14Extreme
Feb15Extreme
Mar14Extreme
Apr12Extreme
May10Very high
Jun9Very high
Jul9Very high
Aug10Very high
Sep12Extreme
Oct13Extreme
Nov13Extreme
Dec13Extreme

Average hourly UV index in Alagoinhas

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 February 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
Feb8.57
Mar8.56.5
Apr7.56
May75
Jun6.54
Jul6.54
Aug75
Sep85.5
Oct86
Nov8.56.5
Dec8.56.5
Almanac & agriculture

Growing season

Chance of a frost-free dayFrost-free year round

Alagoinhas 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. Alagoinhas banks about 5,653 degree days a year, and the running total — which growers use to time plantings and predict maturity — climbs fastest around February.

02,0004,0006,000JanFebMarAprMayJunJulAugSepOctNovDec
Growing degree days (°C·days)
Jan541
Feb490
Mar539
Apr488
May458
Jun405
Jul396
Aug398
Sep421
Oct485
Nov500
Dec532

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.

Alagoinhas receives about 5.0 kWh/m² a day of solar energy on average — bright — with a clear seasonal swing between 3.6 and 6.0 kWh/m².

The brighter stretch of the year lasts 6.7 months, from around Sep 16 to Apr 7. The brightest month is December, averaging about 6.0 kWh/m² (intense).

The dimmest month is June, down near 3.6 kWh/m² — roughly 40% less than the December peak.

01234567JanFebMarAprMayJunJulAugSepOctNovDecbrighterdimmerbrighterdimmoderatebrightintenseDec 286.0 kWhJun 173.6 kWh
Solar energy (kWh/m²)Level
Jan6.0Bright
Feb5.8Bright
Mar5.6Bright
Apr4.8Bright
May4.0Moderate
Jun3.6Moderate
Jul3.8Moderate
Aug4.3Bright
Sep5.0Bright
Oct5.7Bright
Nov5.8Bright
Dec6.0Intense

Where is Alagoinhas?

Alagoinhas sits at 12.1°S, 38.4°W, 158 m above sea level, in Brazil. The nearest listed city is Catu, 25 km away.

Topography around Alagoinhas

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

Within 3 km, the terrain around Alagoinhas has only modest variations in elevation — a maximum elevation change of 115 m around an average of 153 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 263 m; within 80 km, large variations in elevation — a maximum elevation change of 602 m.

The land around Alagoinhas is covered by artificial surfaces (46%), grassland (28%) and trees (23%) within 3 km, trees (53%) and grassland (43%) within 16 km, and grassland (49%) and trees (34%) within 80 km.

3 km
115 m
16 km
263 m
80 km
602 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
Nearby: Catu 25 km · Pojuca 34 km · Coração de Maria 38 km · Irará 39 km · Inhambupe 40 km · Entre Rios 42 km · São Sebastião do Passé 43 km · Conceição do Jacuípe 43 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 Alagoinhas (-12.1356°, -38.4192°, elevation 158 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. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).