Climate and average weather in Ibiúna

In Ibiúna, the weather is humid, warm, wet, and mostly cloudy and remarkably steady, with daytime highs holding near warm levels all year. The wettest stretch peaks around January.

Best: mid April to late September

Over the course of the year, the temperature in Ibiúna typically varies from 12°C to 27°C, and is rarely below 8°C or above 31°C. February is the hottest month of the year, while July is the coldest.

Based on the travel score, the best time of year to visit Ibiúna for warm-weather activities is from mid April to late September.

Hottest
Feb
27°
Coldest
Jul
12°
Wettest
Jan
275 mm
Driest
Aug
46 mm
Rain / yr
1582 mm
172 wet days
Daylight
10.5–13.5 h
shortest–longest
Elevation
868 m
23.7°S
Clearest
Aug
48% cloud

Ibiúna is human settlement in Brazil.

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

Ibiúna 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 April to late September.

Temperature through the year

Average highAverage lowShaded bands: 10–90% of days

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

Temperatures in Ibiúna stay fairly even through the year, without a distinct hot or cool season. The warmest month is February, with an average high of 27°C and low of 19°C; the coolest is July, with an average low of 12°C and high of 21°C.

Days typically run about 9°C warmer than nights year-round.

10°15°20°25°30°35°JanFebMarAprMayJunJulAugSepOctNovDec
Avg high (°C)Avg low (°C)
Jan2619
Feb2719
Mar2618
Apr2516
May2214
Jun2113
Jul2112
Aug2213
Sep2314
Oct2415
Nov2516
Dec2618

Average hourly temperature in Ibiúna

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 February afternoons, near 27°C, and coldest before dawn in July, near 12°C.

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

Ibiúna 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
Jan26° / 19°2752513.34.2
Feb27° / 19°21421.812.84.3
Mar26° / 18°18021.712.24.9
Apr25° / 16°7811.911.56.5
May22° / 14°688.710.96.8
Jun21° / 13°58610.67.2
Jul21° / 12°595.810.77.3
Aug22° / 13°465.511.27.6
Sep23° / 14°999.911.96.8
Oct24° / 15°13015.612.65.8
Nov25° / 16°1691813.15.4
Dec26° / 18°20822.313.44.7

Chance of rain

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

Ibiúna gets about 1582 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 5.9 months, from around Oct 11 to Apr 8, peaking in January at about 80% chance on a given day. The drier stretch runs the rest of the year, bottoming out around Jun 23.

January is the wettest month by volume, with 275 mm over about 25 wet days; August is the driest, with 46 mm.

0%10%20%30%40%50%60%70%80%90%JanFebMarAprMayJunJulAugSepOctNovDecwetterdrierwettermostly drysome rainoften wetvery wetJan 22 · 80%Jun 23 · 17%
Rain on a day (%)Rain days
Jan8025
Feb7822
Mar6922
Apr4112
May289
Jun206
Jul196
Aug196
Sep3210
Oct5016
Nov6018
Dec7222

Monthly rainfall

Over a full year, Ibiúna collects about 1582 mm of rain across 172 wet days — roughly 132 mm in an average month.

It doesn’t fall evenly. January is the wettest month with 275 mm, while August is the driest at just 46 mm. The three wettest months alone bring about 44% of the year’s total.

050100150200250300JanFebMarAprMayJunJulAugSepOctNovDec275214180786858594699130169208
Rainfall (mm)Rain days
Jan27525
Feb21422
Mar18022
Apr7812
May689
Jun586
Jul596
Aug466
Sep9910
Oct13016
Nov16918
Dec20822

Clouds and sunshine

ClearMostly clearPartly cloudyMostly cloudyOvercast

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

In Ibiúna, 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 31 and lasts for 5.7 months, ending around September 18. The clearest month is August, when the sky is clear, mostly clear, or partly cloudy 59% of the time on average.

The cloudier part of the year begins around September 19 and lasts for 6.3 months, ending around March 30. The cloudiest month is January, when it is overcast or mostly cloudy 79% 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 24 · 60%Jan 10 · 19%clearmostly clearpartly cloudymostly cloudyovercastcloudierclearercloudier
Clearer (%)Cloudier (%)
Jan2179
Feb2872
Mar3565
Apr4852
May4753
Jun5644
Jul5941
Aug5941
Sep4357
Oct2674
Nov2674
Dec2476

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 December 16, brings about 13 h 30 min of light; the shortest, around June 17, only 10 h 30 min — a swing of roughly 3 hours.

12 AM4 AM8 AM12 PM4 PM8 PM12 AMJanFebMarAprMayJunJulAugSepOctNovDec
Daylight (h)Sunrise (AM)Sunset (PM)
Jan13.36:397:58
Feb12.86:597:48
Mar12.27:137:24
Apr11.57:266:53
May10.97:396:31
Jun10.67:536:26
Jul10.77:546:35
Aug11.27:386:48
Sep11.97:076:59
Oct12.66:377:11
Nov13.16:197:29
Dec13.46:227:49

Sunny days

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

Ibiúna averages about 8 sunny days a month — counting the days the sky stays clear or mostly clear — with a clear seasonal swing between 2 and 14 days.

The sunnier stretch runs 5.4 months, from around Apr 11 to Sep 22. The sunniest month is July, with roughly 14 sunny days (mixed).

The greyest month is January, down near 2 sunny days — about 83% fewer than the July peak.

05101520JanFebMarAprMayJunJulAugSepOctNovDecgreyersunniergreyergloomymixedbrightJul 2114 daysJan 142 days
Sunny daysSky
Jan2Gloomy
Feb3Gloomy
Mar5Gloomy
Apr8Mixed
May10Mixed
Jun13Mixed
Jul14Mixed
Aug14Mixed
Sep9Mixed
Oct5Gloomy
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.

In Ibiúna, how humid it feels changes dramatically over the year.

The more humid part of the year lasts 6.5 months, from around October 9 to April 25. The muggiest month is February, when the air feels humid, muggy or worse about 97% of the time.

The most comfortable stretch runs from around April 26 to October 8, and July is the most comfortable month — the air is dry or comfortable 98% of the time.

0%10%20%30%40%50%60%70%80%90%100%JanFebMarAprMayJunJulAugSepOctNovDecJul 13 · 99%Feb 16 · 3%humidmuggycomfortabledryhumidcomfortablehumid
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
Jan0424702
Feb0321742
Mar0631621
Apr62642250
May29462320
Jun5042700
Jul6632200
Aug6234400
Sep35432110
Oct133047100
Nov62446250
Dec11234531

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

051015JanFebMarAprMayJunJulAugSepOctNovDeccalmlight breezeSep 25 · 11 km/hFeb 21 · 9 km/h
Wind speed (km/h)Feels
Jan10calm
Feb9calm
Mar9calm
Apr9calm
May10calm
Jun10calm
Jul10calm
Aug10calm
Sep11calm
Oct11calm
Nov11calm
Dec11calm

Hazard calendar for Ibiúna

In seasonPeak

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

Ibiúna's rainy season runs October–March, 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 Ibiúna

TravelBeach/poolTemperatureCloudsPrecipitation

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

Around mid April, Ibiúna 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 Ibiúna for general outdoor tourist activities is from mid April to late September, with a peak score in the last week of August.

0246810JanFebMarAprMayJunJulAugSepOctNovDecbest timetravel scoretemperaturecloudsprecipitationAug 24 · 7.7

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
Jan4.2fair
Feb4.3fair
Mar4.9fair
Apr6.5good
May6.8good
Jun7.2good
Jul7.3good
Aug7.6ideal
Sep6.8good
Oct5.8good
Nov5.4fair
Dec4.7fair

The beach/pool score favors clear, rainless days with daytime highs between 24°C and 34°C. Based on this score, the best times of year to visit Ibiúna for hot-weather activities run from late March to mid May and again from early August to mid November, with a peak score in the first week of September.

024681012JanFebMarAprMayJunJulAugSepOctNovDecbest timebest timebeach/pool scoretemperaturecloudsprecipitationSep 1 · 6.0

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 Ibiúna, 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.

Ibiúna packs about the same all year — highs hold near 27°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 February, Ibiúna sees daytime highs around 27°C and nights near 19°C. Pack rain gear. Worth having: light clothes and sun protection. About 22 days see rain.

UV index (midday) in Ibiúna 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 Ibiúna peaks around January 21 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 12 at about 6 (high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highHighVery highExtremeJan 21UV 15Jul 12UV 6
UV index (midday)Level
Jan15Extreme
Feb15Extreme
Mar12Extreme
Apr9Very high
May7High
Jun6High
Jul5High
Aug8Very high
Sep8Very high
Oct11Extreme
Nov12Extreme
Dec14Extreme

Average hourly UV index in Ibiúna

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
Apr74.5
May62.5
Jun50
Jul50
Aug6.53.5
Sep74
Oct85.5
Nov8.56.5
Dec97

Air quality in Ibiúna 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 Ibiúna is worst in July — around 33 µg/m³ PM2.5 (moderate), about 2.0× the cleanest month (January, 17 µg/m³).

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecModerateJul 2033 µg/m³Jan 1817 µg/m³
PM2.5 (µg/m³)Level
Jan17Moderate
Feb17Moderate
Mar18Moderate
Apr20Moderate
May24Moderate
Jun30Moderate
Jul33Moderate
Aug32Moderate
Sep29Moderate
Oct21Moderate
Nov17Moderate
Dec17Moderate
Almanac & agriculture

Growing season

Chance of a frost-free dayFrost-free year round

Ibiúna 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. Ibiúna banks about 3,538 degree days a year, and the running total — which growers use to time plantings and predict maturity — climbs fastest around February.

01,0002,0003,000JanFebMarAprMayJunJulAugSepOctNovDec
Growing degree days (°C·days)
Jan387
Feb354
Mar369
Apr309
May240
Jun206
Jul200
Aug229
Sep259
Oct305
Nov314
Dec365

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.

Ibiúna receives about 4.6 kWh/m² a day of solar energy on average — bright — with a clear seasonal swing between 3.2 and 5.6 kWh/m².

The brighter stretch of the year lasts 7.0 months, from around Sep 2 to Apr 1. The brightest month is December, averaging about 5.6 kWh/m² (bright).

The dimmest month is June, down near 3.2 kWh/m² — roughly 42% less than the December peak.

01234567JanFebMarAprMayJunJulAugSepOctNovDecbrighterdimmerbrighterdimmoderatebrightintenseDec 215.6 kWhJun 243.2 kWh
Solar energy (kWh/m²)Level
Jan5.3Bright
Feb5.3Bright
Mar4.8Bright
Apr4.4Bright
May3.5Moderate
Jun3.2Moderate
Jul3.4Moderate
Aug4.2Bright
Sep4.6Bright
Oct5.1Bright
Nov5.5Bright
Dec5.6Bright

Where is Ibiúna?

Ibiúna sits at 23.7°S, 47.2°W, 868 m above sea level, in Brazil. The nearest listed city is Mairinque, 13 km away.

Topography around Ibiúna

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

Within 3 km, the terrain around Ibiúna has only modest variations in elevation — a maximum elevation change of 150 m around an average of 876 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 403 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,388 m.

The land around Ibiúna is covered by trees (47%) and grassland (32%) within 3 km, trees (58%) and grassland (31%) within 16 km, and trees (61%) within 80 km.

3 km
150 m
16 km
403 m
80 km
1,388 m
treesgrasslandcroplandartificial surfaceswater
Nearby: Mairinque 13 km · Alumínio 14 km · São Roque 17 km · Vargem Grande Paulista 21 km · Piedade 22 km · Votorantim 25 km · Araçariguama 29 km · Sorocaba 30 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 Ibiúna (-23.6564°, -47.2225°, elevation 868 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).