Climate and average weather in União dos Palmares

In União dos Palmares, 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 June.

Best: late July to late December

Over the course of the year, the temperature in União dos Palmares typically varies from 19°C to 30°C, and is rarely below 18°C or above 33°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 União dos Palmares for warm-weather activities is from late July to late December.

Hottest
Jan
30°
Coldest
Jul
20°
Wettest
Jun
125 mm
Driest
Dec
30 mm
Rain / yr
867 mm
216 wet days
Daylight
11.5–12.5 h
shortest–longest
Elevation
154 m
9.2°S
Clearest
Oct
56% cloud

União dos Palmares is human settlement in Brazil.

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

União dos Palmares 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 late July to late December.

Temperature through the year

Average highAverage lowShaded bands: 10–90% of days

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

Temperatures in União dos Palmares stay fairly even through the year, without a distinct hot or cool season. The warmest month is January, with an average high of 30°C and low of 22°C; the coolest is July, with an average low of 20°C and high of 26°C.

Days typically run about 7°C warmer than nights year-round.

15°20°25°30°35°JanFebMarAprMayJunJulAugSepOctNovDec
Avg high (°C)Avg low (°C)
Jan3022
Feb3022
Mar3022
Apr2922
May2821
Jun2620
Jul2620
Aug2619
Sep2720
Oct2821
Nov3021
Dec3022

How hot and cold União dos Palmares 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, União dos Palmares feels like about 34°C (around March 16). About 147 days a year carry some heat stress, peaking in March.

15°20°25°30°35°JanFebMarAprMayJunJulAugSepOctNovDec
Feels-like high (°C)Air high (°C)Feels-like low (°C)Air low (°C)
Jan33302222
Feb33302222
Mar34302222
Apr32292222
May30282121
Jun26262020
Jul25261920
Aug26261919
Sep27272020
Oct30282021
Nov32302121
Dec33302222

Average hourly temperature in União dos Palmares

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 30°C, and coldest before dawn in July, near 20°C.

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

União dos Palmares 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° / 22°5315.512.54.3
Feb30° / 22°5614.812.34.2
Mar30° / 22°6617.812.14.1
Apr29° / 22°9019.511.84.2
May28° / 21°10723.111.64.5
Jun26° / 20°12524.111.54.5
Jul26° / 20°12325.211.54.5
Aug26° / 19°8422.211.74.9
Sep27° / 20°5918.211.95.3
Oct28° / 21°4314.112.25.5
Nov30° / 21°3110.512.45.2
Dec30° / 22°3010.612.54.8

Chance of rain

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

União dos Palmares gets about 867 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 6.0 months, from around Mar 21 to Sep 18, peaking in July at about 82% chance on a given day. The drier stretch runs the rest of the year, bottoming out around Dec 6.

June is the wettest month by volume, with 125 mm over about 24 wet days; December is the driest, with 30 mm.

0%10%20%30%40%50%60%70%80%90%JanFebMarAprMayJunJulAugSepOctNovDecdrierwetterdriermostly drysome rainoften wetvery wetJul 4 · 82%Dec 6 · 29%
Rain on a day (%)Rain days
Jan4916
Feb5315
Mar5718
Apr6620
May7423
Jun8024
Jul8025
Aug7222
Sep6118
Oct4614
Nov3511
Dec3511

Monthly rainfall

Over a full year, União dos Palmares collects about 867 mm of rain across 216 wet days — roughly 72 mm in an average month.

It doesn’t fall evenly. June is the wettest month with 125 mm, while December is the driest at just 30 mm. The three wettest months alone bring about 41% of the year’s total.

0255075100125150JanFebMarAprMayJunJulAugSepOctNovDec535666901071251238459433130
Rainfall (mm)Rain days
Jan5316
Feb5615
Mar6618
Apr9020
May10723
Jun12524
Jul12325
Aug8422
Sep5918
Oct4314
Nov3111
Dec3011

Clouds and sunshine

ClearMostly clearPartly cloudyMostly cloudyOvercast

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

In União dos Palmares, 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 September 1 and lasts for 4.2 months, ending around January 5. The clearest month is October, when the sky is clear, mostly clear, or partly cloudy 61% of the time on average.

The cloudier part of the year begins around April 9 and lasts for 4.8 months, ending around August 31. The cloudiest month is July, when it is overcast or mostly cloudy 53% 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 · 65%Apr 30 · 45%clearmostly clearpartly cloudymostly cloudyovercastcloudierclearer
Clearer (%)Cloudier (%)
Jan5149
Feb5050
Mar5446
Apr5050
May4753
Jun5050
Jul4753
Aug5050
Sep5941
Oct6139
Nov5941
Dec5743

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 30 min of light; the shortest, around May 22, only 11 h 30 min — a swing of roughly 1 hour.

12 AM4 AM8 AM12 PM4 PM8 PM12 AMJanFebMarAprMayJunJulAugSepOctNovDec
Daylight (h)Sunrise (AM)Sunset (PM)
Jan12.55:195:48
Feb12.35:305:48
Mar12.15:325:36
Apr11.85:305:18
May11.65:335:08
Jun11.55:405:08
Jul11.55:445:15
Aug11.75:375:19
Sep11.95:205:17
Oct12.25:035:15
Nov12.44:575:22
Dec12.55:045:36

Sunny days

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

União dos Palmares averages about 6 sunny days a month — counting the days the sky stays clear or mostly clear — with a clear seasonal swing between 3 and 10 days.

The sunnier stretch runs 5.9 months, from around Oct 25 to Apr 21. The sunniest month is December, with roughly 9 sunny days (mixed).

The greyest month is August, down near 3 sunny days — about 62% fewer than the December peak.

051015JanFebMarAprMayJunJulAugSepOctNovDecsunniergreyersunniergloomymixedDec 1010 daysAug 153 days
Sunny daysSky
Jan8Gloomy
Feb7Gloomy
Mar8Gloomy
Apr7Gloomy
May5Gloomy
Jun5Gloomy
Jul4Gloomy
Aug3Gloomy
Sep5Gloomy
Oct6Gloomy
Nov7Gloomy
Dec9Mixed

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.

União dos Palmares 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%JanFebMarAprMayJunJulAugSepOctNovDecoppressivemuggyhumid
Humid (%)Muggy (%)Oppressive (%)
Jan04258
Feb02377
Mar01387
Apr01387
May02476
Jun15841
Jul58411
Aug8893
Sep4888
Oct18118
Nov07525
Dec06040

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 União dos Palmares is typically calm, near 9 km/h, and varies little with the seasons.

The windier part of the year lasts 5.8 months, from around Aug 16 to Feb 8. The windiest month is December, averaging about 10 km/h (calm).

The calmer part of the year runs from around Feb 9 to Aug 15, with April the calmest month at about 7 km/h.

051015JanFebMarAprMayJunJulAugSepOctNovDecwindiercalmerwindiercalmlight breezeDec 2 · 11 km/hApr 29 · 7 km/h
Wind speed (km/h)Feels
Jan9calm
Feb9calm
Mar8calm
Apr7calm
May7calm
Jun8calm
Jul8calm
Aug9calm
Sep9calm
Oct10calm
Nov11calm
Dec10calm

Hazard calendar for União dos Palmares

In seasonPeak

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

União dos Palmares's rainy season runs February–September, when most of the year's rain falls.

Rainy season
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Best time to visit União dos Palmares

TravelBeach/poolTemperatureCloudsPrecipitation

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

Around mid December, União dos Palmares 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 União dos Palmares for general outdoor tourist activities is from late July to late December, with a peak score in the first week of October.

0246810JanFebMarAprMayJunJulAugSepOctNovDecbest timetravel scoretemperaturecloudsprecipitationOct 1 · 5.8

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
Jan4.3fair
Feb4.2fair
Mar4.1fair
Apr4.2fair
May4.5fair
Jun4.5fair
Jul4.5fair
Aug4.9fair
Sep5.3fair
Oct5.5fair
Nov5.1fair
Dec4.8fair

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 União dos Palmares for hot-weather activities is from late September to late March, with a peak score in the first week of December.

024681012JanFebMarAprMayJunJulAugSepOctNovDecbest timebest timebeach/pool scoretemperaturecloudsprecipitationDec 6 · 7.0

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 União dos Palmares, 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.

União dos Palmares packs about the same all year — highs hold near 30°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, União dos Palmares sees daytime highs around 30°C and nights near 22°C. Pack light clothes and rain gear. Worth having: sun protection. About 16 days see rain.

Sea temperature near União dos Palmares

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 68 km away) is warmest in April at about 29°C and coldest in August near 26°C.

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

24°26°28°30°JanFebMarAprMayJunJulAugSepOctNovDecwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan28Warm
Feb28Tropical
Mar28Tropical
Apr29Tropical
May28Tropical
Jun27Warm
Jul26Warm
Aug26Warm
Sep26Warm
Oct27Warm
Nov27Warm
Dec27Warm

UV index (midday) in União dos Palmares 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 União dos Palmares peaks around March 12 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 12UV 15Jul 17UV 10
UV index (midday)Level
Jan14Extreme
Feb15Extreme
Mar15Extreme
Apr13Extreme
May11Extreme
Jun10Very high
Jul10Very high
Aug10Very high
Sep12Extreme
Oct12Extreme
Nov12Extreme
Dec12Extreme

Average hourly UV index in União dos Palmares

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)
Jan8.56.5
Feb8.56.5
Mar8.56.5
Apr86
May7.55
Jun75
Jul75
Aug7.55
Sep86
Oct86
Nov86
Dec86
Almanac & agriculture

Growing season

Chance of a frost-free dayFrost-free year round

União dos Palmares 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. União dos Palmares banks about 5,343 degree days a year, and the running total — which growers use to time plantings and predict maturity — climbs fastest around March.

02,0004,000JanFebMarAprMayJunJulAugSepOctNovDec
Growing degree days (°C·days)
Jan500
Feb454
Mar505
Apr468
May448
Jun398
Jul387
Aug385
Sep396
Oct444
Nov461
Dec496

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.

União dos Palmares receives about 5.1 kWh/m² a day of solar energy on average — bright — with a clear seasonal swing between 3.7 and 6.1 kWh/m².

The brighter stretch of the year lasts 6.9 months, from around Sep 17 to Apr 13. The brightest month is December, averaging about 6.0 kWh/m² (intense).

The dimmest month is June, down near 3.8 kWh/m² — roughly 38% less than the December peak.

01234567JanFebMarAprMayJunJulAugSepOctNovDecbrighterdimmerbrighterdimmoderatebrightintenseDec 36.1 kWhJun 273.7 kWh
Solar energy (kWh/m²)Level
Jan5.9Bright
Feb5.9Bright
Mar5.7Bright
Apr5.1Bright
May4.2Bright
Jun3.8Moderate
Jul3.8Moderate
Aug4.4Bright
Sep5.1Bright
Oct5.8Bright
Nov6.1Intense
Dec6.0Intense

Where is União dos Palmares?

União dos Palmares sits at 9.2°S, 36.0°W, 154 m above sea level, in Brazil. The nearest listed city is São José da Laje, 17 km away.

Topography around União dos Palmares

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

Within 3 km, the terrain around União dos Palmares has only modest variations in elevation — a maximum elevation change of 174 m around an average of 158 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 550 m; within 80 km, large variations in elevation — a maximum elevation change of 1,042 m.

The land around União dos Palmares is covered by grassland (79%) within 3 km, grassland (73%) and trees (25%) within 16 km, and grassland (64%) within 80 km.

3 km
174 m
16 km
550 m
80 km
1,042 m
treesshrubsgrasslandcroplandartificial surfaceswater
Nearby: São José da Laje 17 km · Murici 19 km · Capela 28 km · Cajueiro 29 km · Joaquim Gomes 31 km · Messias 32 km · Viçosa 33 km · Correntes 33 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 União dos Palmares (-9.1628°, -36.0319°, elevation 154 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).