Climate and average weather in São Joaquim da Barra

In São Joaquim da Barra, the weather is hot, wet, and partly cloudy and remarkably steady, with daytime highs holding near hot levels all year. The wettest stretch peaks around January.

Best: late April to late August

Over the course of the year, the temperature in São Joaquim da Barra typically varies from 15°C to 30°C, and is rarely below 12°C or above 35°C. October is the hottest month of the year, while June is the coldest.

Based on the travel score, the best time of year to visit São Joaquim da Barra for warm-weather activities is from late April to late August.

Hottest
Oct
30°
Coldest
Jun
15°
Wettest
Jan
268 mm
Driest
Jul
12 mm
Rain / yr
1381 mm
151 wet days
Daylight
10.8–13.2 h
shortest–longest
Elevation
623 m
20.6°S
Clearest
Aug
29% cloud

São Joaquim da Barra is human settlement in Brazil.

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

São Joaquim da Barra 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 April to late August.

Temperature through the year

Average highAverage lowShaded bands: 10–90% of days

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

Temperatures in São Joaquim da Barra stay fairly even through the year, without a distinct hot or cool season. The warmest month is October, with an average high of 30°C and low of 20°C; the coolest is June, with an average low of 15°C and high of 26°C.

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

10°15°20°25°30°35°40°JanFebMarAprMayJunJulAugSepOctNovDec
Avg high (°C)Avg low (°C)
Jan2921
Feb2920
Mar2920
Apr2919
May2716
Jun2615
Jul2715
Aug2916
Sep3019
Oct3020
Nov2920
Dec2920

Average hourly temperature in São Joaquim da Barra

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 30°C, and coldest before dawn in June, near 15°C.

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

São Joaquim da Barra 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
Jan29° / 21°26824.113.13.7
Feb29° / 20°19419.412.73.9
Mar29° / 20°16920.812.14.2
Apr29° / 19°679.711.55.9
May27° / 16°385.2117.6
Jun26° / 15°222.410.88.2
Jul27° / 15°121.910.98.3
Aug29° / 16°142.511.37.2
Sep30° / 19°607.311.95.4
Oct30° / 20°10913.912.54.3
Nov29° / 20°17719.4134.1
Dec29° / 20°25124.313.23.7

Chance of rain

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

São Joaquim da Barra gets about 1381 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 5.9 months, from around Oct 12 to Apr 8, peaking in January at about 78% chance on a given day. The drier stretch runs the rest of the year, bottoming out around Jun 29.

January is the wettest month by volume, with 268 mm over about 24 wet days; July is the driest, with 12 mm.

0%10%20%30%40%50%60%70%80%90%JanFebMarAprMayJunJulAugSepOctNovDecwetterdrierwettermostly drysome rainoften wetvery wetJan 1 · 78%Jun 29 · 5%
Rain on a day (%)Rain days
Jan7724
Feb7019
Mar6521
Apr3310
May175
Jun82
Jul62
Aug83
Sep257
Oct4514
Nov6519
Dec7724

Monthly rainfall

Over a full year, São Joaquim da Barra collects about 1381 mm of rain across 151 wet days — roughly 115 mm in an average month.

It doesn’t fall evenly. January is the wettest month with 268 mm, while July is the driest at just 12 mm. The three wettest months alone bring about 52% of the year’s total.

050100150200250300JanFebMarAprMayJunJulAugSepOctNovDec268194169673822121460109177251
Rainfall (mm)Rain days
Jan26824
Feb19419
Mar16921
Apr6710
May385
Jun222
Jul122
Aug143
Sep607
Oct10914
Nov17719
Dec25124

Clouds and sunshine

ClearMostly clearPartly cloudyMostly cloudyOvercast

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

In São Joaquim da Barra, 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 March 30 and lasts for 6.2 months, ending around October 4. The clearest month is August, when the sky is clear, mostly clear, or partly cloudy 81% of the time on average.

The cloudier part of the year begins around October 5 and lasts for 5.8 months, ending around March 29. The cloudiest month is December, when it is overcast or mostly cloudy 74% 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 17 · 82%Jan 4 · 23%clearmostly clearpartly cloudymostly cloudyovercastcloudierclearercloudier
Clearer (%)Cloudier (%)
Jan2674
Feb3565
Mar4753
Apr6535
May6733
Jun7426
Jul7921
Aug8119
Sep6832
Oct4852
Nov3565
Dec2674

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 13 h 12 min of light; the shortest, around June 1, only 10 h 48 min — a swing of roughly 2 h 24 min.

12 AM4 AM8 AM12 PM4 PM8 PM12 AMJanFebMarAprMayJunJulAugSepOctNovDec
Daylight (h)Sunrise (AM)Sunset (PM)
Jan13.16:477:54
Feb12.77:057:47
Mar12.17:177:25
Apr11.57:266:58
May11.07:376:38
Jun10.87:496:34
Jul10.97:516:43
Aug11.37:376:54
Sep11.97:097:02
Oct12.56:427:11
Nov13.06:277:27
Dec13.26:307:45

Sunny days

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

São Joaquim da Barra averages about 12 sunny days a month — counting the days the sky stays clear or mostly clear — with a clear seasonal swing between 3 and 21 days.

The sunnier stretch runs 6.0 months, from around Apr 5 to Oct 3. The sunniest month is August, with roughly 21 sunny days (bright).

The greyest month is January, down near 4 sunny days — about 83% fewer than the August peak.

0510152025JanFebMarAprMayJunJulAugSepOctNovDecgreyersunniergreyergloomymixedbrightbrilliantAug 1621 daysJan 33 days
Sunny daysSky
Jan4Gloomy
Feb5Gloomy
Mar8Mixed
Apr14Mixed
May16Bright
Jun18Bright
Jul21Bright
Aug21Bright
Sep16Bright
Oct9Mixed
Nov6Gloomy
Dec4Gloomy

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.

In São Joaquim da Barra, how humid it feels changes dramatically over the year.

The more humid part of the year lasts 6.4 months, from around October 13 to April 26. The muggiest month is December, when the air feels humid, muggy or worse about 99% of the time.

The most comfortable stretch runs from around April 27 to October 12, and July is the most comfortable month — the air is dry or comfortable 96% of the time.

0%10%20%30%40%50%60%70%80%90%100%JanFebMarAprMayJunJulAugSepOctNovDecJul 20 · 97%Dec 22 · 0%oppressivecomfortablemuggyhumiddryhumidcomfortablehumid
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
Jan01127611
Feb0211797
Mar0217774
Apr41836421
May22413160
Jun45401410
Jul7125400
Aug7717600
Sep44272360
Oct132136290
Nov2931572
Dec0113806

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 São Joaquim da Barra is typically calm, near 8 km/h, and varies little with the seasons.

The windier part of the year lasts 5.5 months, from around Jun 10 to Nov 22. The windiest month is September, averaging about 10 km/h (calm).

The calmer part of the year runs from around Nov 23 to Jun 9, with March the calmest month at about 7 km/h.

051015JanFebMarAprMayJunJulAugSepOctNovDeccalmerwindiercalmercalmlight breezeSep 13 · 10 km/hMar 1 · 7 km/h
Wind speed (km/h)Feels
Jan7calm
Feb7calm
Mar7calm
Apr7calm
May8calm
Jun8calm
Jul9calm
Aug10calm
Sep10calm
Oct9calm
Nov8calm
Dec8calm

Hazard calendar for São Joaquim da Barra

In seasonPeak

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

São Joaquim da Barra's monsoon runs November–March, 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 São Joaquim da Barra

TravelBeach/poolTemperatureCloudsPrecipitation

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

Around early May, São Joaquim da Barra 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 São Joaquim da Barra for general outdoor tourist activities is from late April to late August, with a peak score in the first week of July.

0246810JanFebMarAprMayJunJulAugSepOctNovDecbest timetravel scoretemperaturecloudsprecipitationJul 4 · 8.4

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
Jan3.7fair
Feb3.9fair
Mar4.3fair
Apr5.9good
May7.5ideal
Jun8.2ideal
Jul8.3ideal
Aug7.2good
Sep5.4fair
Oct4.4fair
Nov4.1fair
Dec3.7fair

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 São Joaquim da Barra for hot-weather activities is from mid April to late September, with a peak score in the third week of August.

024681012JanFebMarAprMayJunJulAugSepOctNovDecbest timebeach/pool scoretemperaturecloudsprecipitationAug 18 · 8.7

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 São Joaquim da Barra, 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.

São Joaquim da Barra 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 October, São Joaquim da Barra sees daytime highs around 30°C and nights near 20°C. Pack light clothes, rain gear and sun protection. About 14 days see rain.

UV index (midday) in São Joaquim da Barra 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 São Joaquim da Barra peaks around January 23 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 21 at about 7 (high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highHighVery highExtremeJan 23UV 15Jun 21UV 7
UV index (midday)Level
Jan15Extreme
Feb15Extreme
Mar13Extreme
Apr11Extreme
May8Very high
Jun7High
Jul7High
Aug9Very high
Sep10Very high
Oct11Extreme
Nov14Extreme
Dec14Extreme

Average hourly UV index in São Joaquim da Barra

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 January the burn window is concentrated in the middle of the day: about 9 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)
Jan97
Feb8.57
Mar86
Apr7.55
May63.5
Jun5.52.5
Jul63
Aug74.5
Sep75
Oct85.5
Nov8.57
Dec8.57

Air quality in São Joaquim da Barra 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 São Joaquim da Barra is worst in September — around 42 µg/m³ PM2.5 (poor), about 6.0× the cleanest month (November, 7 µg/m³).

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateModerateGoodSep 1539 µg/m³Nov 227 µg/m³
PM2.5 (µg/m³)Level
Jan9Good
Feb9Good
Mar9Good
Apr9Good
May10Good
Jun10Good
Jul10Good
Aug20Moderate
Sep42Poor
Oct15Moderate
Nov7Good
Dec8Good
Almanac & agriculture

Growing season

Chance of a frost-free dayFrost-free year round

São Joaquim da Barra 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. São Joaquim da Barra banks about 4,911 degree days a year, and the running total — which growers use to time plantings and predict maturity — climbs fastest around October.

02,0004,000JanFebMarAprMayJunJulAugSepOctNovDec
Growing degree days (°C·days)
Jan453
Feb413
Mar450
Apr408
May352
Jun319
Jul334
Aug388
Sep432
Oct471
Nov439
Dec452

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.

São Joaquim da Barra receives about 5.3 kWh/m² a day of solar energy on average — bright — with a clear seasonal swing between 4.1 and 6.1 kWh/m².

The brighter stretch of the year lasts 6.9 months, from around Aug 20 to Mar 18. The brightest month is October, averaging about 6.1 kWh/m² (intense).

The dimmest month is June, down near 4.1 kWh/m² — roughly 33% less than the October peak.

01234567JanFebMarAprMayJunJulAugSepOctNovDecbrighterdimmerbrighterdimmoderatebrightintenseOct 166.1 kWhJun 144.1 kWh
Solar energy (kWh/m²)Level
Jan5.6Bright
Feb5.8Bright
Mar5.3Bright
Apr5.0Bright
May4.3Bright
Jun4.0Bright
Jul4.3Bright
Aug5.2Bright
Sep5.8Bright
Oct6.1Intense
Nov5.9Bright
Dec5.7Bright

Where is São Joaquim da Barra?

São Joaquim da Barra sits at 20.6°S, 47.9°W, 623 m above sea level, in Brazil. The nearest listed city is Orlândia, 16 km away.

Topography around São Joaquim da Barra

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of São Joaquim da Barra.

Within 3 km, the terrain around São Joaquim da Barra has only modest variations in elevation — a maximum elevation change of 180 m around an average of 630 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 307 m; within 80 km, large variations in elevation — a maximum elevation change of 779 m.

The land around São Joaquim da Barra is covered by cropland (46%) and artificial surfaces (29%) within 3 km, cropland (74%) within 16 km, and cropland (62%) and trees (23%) within 80 km.

3 km
180 m
16 km
307 m
80 km
779 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
Nearby: Orlândia 16 km · Guará 17 km · Morro Agudo 27 km · Ituverava 28 km · Batatais 44 km · Franca 47 km · Miguelópolis 48 km · Jardinópolis 49 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 São Joaquim da Barra (-20.5814°, -47.8547°, elevation 623 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).