Climate and average weather in Araras

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

Best: mid April to early September

Over the course of the year, the temperature in Araras typically varies from 13°C to 29°C, and is rarely below 9°C or above 35°C. February is the hottest month of the year, while June is the coldest.

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

Hottest
Feb
29°
Coldest
Jun
14°
Wettest
Jan
285 mm
Driest
Aug
30 mm
Rain / yr
1519 mm
153 wet days
Daylight
10.6–13.4 h
shortest–longest
Elevation
634 m
22.4°S
Clearest
Aug
33% cloud

Araras is human settlement in Brazil.

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

Araras 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 early September.

Temperature through the year

Average highAverage lowShaded bands: 10–90% of days

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

Temperatures in Araras stay fairly even through the year, without a distinct hot or cool season. The warmest month is February, with an average high of 29°C and low of 20°C; the coolest is June, with an average low of 14°C and high of 25°C.

Days typically run about 11°C warmer than nights, with the widest day–night swing (around 13°C) in August.

10°15°20°25°30°35°JanFebMarAprMayJunJulAugSepOctNovDec
Avg high (°C)Avg low (°C)
Jan2920
Feb2920
Mar2919
Apr2818
May2515
Jun2514
Jul2513
Aug2714
Sep2816
Oct2918
Nov2919
Dec2920

Average hourly temperature in Araras

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 29°C, and coldest before dawn in June, near 14°C.

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

Araras 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° / 20°28523.713.23.7
Feb29° / 20°21019.912.83.9
Mar29° / 19°17619.512.24.4
Apr28° / 18°708.811.56.5
May25° / 15°556.710.97.5
Jun25° / 14°364.110.78.2
Jul25° / 13°313.810.88.3
Aug27° / 14°304.111.27.9
Sep28° / 16°718.211.96.2
Oct29° / 18°12914.512.54.9
Nov29° / 19°19117.213.14.6
Dec29° / 20°23522.113.33.9

Chance of rain

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

Araras gets about 1519 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 5.8 months, from around Oct 9 to Apr 3, peaking in January at about 76% chance on a given day. The drier stretch runs the rest of the year, bottoming out around Jun 27.

January is the wettest month by volume, with 285 mm over about 24 wet days; August is the driest, with 30 mm.

0%10%20%30%40%50%60%70%80%90%JanFebMarAprMayJunJulAugSepOctNovDecwetterdrierwettermostly drysome rainoften wetvery wetJan 22 · 76%Jun 27 · 11%
Rain on a day (%)Rain days
Jan7524
Feb7120
Mar6220
Apr319
May227
Jun144
Jul124
Aug144
Sep278
Oct4615
Nov5717
Dec7222

Monthly rainfall

Over a full year, Araras collects about 1519 mm of rain across 153 wet days — roughly 127 mm in an average month.

It doesn’t fall evenly. January is the wettest month with 285 mm, while August is the driest at just 30 mm. The three wettest months alone bring about 48% of the year’s total.

050100150200250300350JanFebMarAprMayJunJulAugSepOctNovDec285210176705536313071129191235
Rainfall (mm)Rain days
Jan28524
Feb21020
Mar17620
Apr709
May557
Jun364
Jul314
Aug304
Sep718
Oct12915
Nov19117
Dec23522

Clouds and sunshine

ClearMostly clearPartly cloudyMostly cloudyOvercast

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

In Araras, 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 27 and lasts for 6.1 months, ending around September 28. The clearest month is August, when the sky is clear, mostly clear, or partly cloudy 75% of the time on average.

The cloudier part of the year begins around September 29 and lasts for 5.9 months, ending around March 26. The cloudiest month is January, when it is overcast or mostly cloudy 73% 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 25 · 78%Jan 9 · 25%clearmostly clearpartly cloudymostly cloudyovercastcloudierclearercloudier
Clearer (%)Cloudier (%)
Jan2773
Feb3862
Mar4951
Apr6337
May6238
Jun6931
Jul7129
Aug7525
Sep6436
Oct4456
Nov3961
Dec3367

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 13, brings about 13 h 24 min of light; the shortest, around June 14, only 10 h 36 min — a swing of roughly 2 h 48 min.

12 AM4 AM8 AM12 PM4 PM8 PM12 AMJanFebMarAprMayJunJulAugSepOctNovDec
Daylight (h)Sunrise (AM)Sunset (PM)
Jan13.26:427:56
Feb12.87:017:47
Mar12.27:147:24
Apr11.57:256:54
May10.97:386:34
Jun10.77:516:29
Jul10.87:536:38
Aug11.27:376:50
Sep11.97:087:00
Oct12.56:397:10
Nov13.16:227:28
Dec13.36:257:47

Sunny days

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

Araras averages about 11 sunny days a month — counting the days the sky stays clear or mostly clear — with a clear seasonal swing between 3 and 20 days.

The sunnier stretch runs 6.0 months, from around Apr 3 to Oct 1. The sunniest month is August, with roughly 19 sunny days (bright).

The greyest month is January, down near 4 sunny days — about 79% fewer than the August peak.

0510152025JanFebMarAprMayJunJulAugSepOctNovDecgreyersunniergreyergloomymixedbrightbrilliantAug 2320 daysJan 73 days
Sunny daysSky
Jan4Gloomy
Feb5Gloomy
Mar9Mixed
Apr14Mixed
May14Mixed
Jun16Bright
Jul18Bright
Aug20Bright
Sep15Bright
Oct9Mixed
Nov7Gloomy
Dec5Gloomy

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 Araras, 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 24. The muggiest month is March, when the air feels humid, muggy or worse about 98% of the time.

The most comfortable stretch runs from around April 25 to October 8, 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 17 · 97%Mar 7 · 1%oppressivecomfortablemuggyhumiddryhumidcomfortablehumid
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
Jan02127116
Feb03127015
Mar0221689
Apr52135382
May25412940
Jun41441400
Jul6333400
Aug6726800
Sep39322360
Oct122240260
Nov31533462
Dec0420688

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 Araras is steady company: average speeds sit near 8 km/hcalm — in every month of the year, with no meaningful windy or calm season.

051015JanFebMarAprMayJunJulAugSepOctNovDeccalmlight breezeSep 19 · 9 km/hFeb 26 · 7 km/h
Wind speed (km/h)Feels
Jan8calm
Feb7calm
Mar7calm
Apr7calm
May8calm
Jun8calm
Jul8calm
Aug9calm
Sep9calm
Oct9calm
Nov9calm
Dec8calm

Hazard calendar for Araras

In seasonPeak

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

Araras's monsoon runs October–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 Araras

TravelBeach/poolTemperatureCloudsPrecipitation

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

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

0246810JanFebMarAprMayJunJulAugSepOctNovDecbest timetravel scoretemperaturecloudsprecipitationJul 3 · 8.3

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
Feb3.8fair
Mar4.5fair
Apr6.5good
May7.5ideal
Jun8.2ideal
Jul8.2ideal
Aug7.8ideal
Sep6.2good
Oct4.9fair
Nov4.6fair
Dec4.0fair

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 Araras for hot-weather activities is from early April to mid October, with a peak score in the last week of August.

024681012JanFebMarAprMayJunJulAugSepOctNovDecbest timebeach/pool scoretemperaturecloudsprecipitationAug 27 · 8.0

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 Araras, 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.

Araras packs about the same all year — highs hold near 29°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, Araras sees daytime highs around 29°C and nights near 20°C. Pack light clothes and rain gear. Worth having: sun protection. About 20 days see rain.

UV index (midday) in Araras 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 Araras peaks around January 20 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 20UV 15Jul 12UV 6
UV index (midday)Level
Jan15Extreme
Feb14Extreme
Mar12Extreme
Apr10Very high
May7High
Jun6High
Jul6High
Aug8Very high
Sep8Very high
Oct11Extreme
Nov13Extreme
Dec14Extreme

Average hourly UV index in Araras

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
Feb8.56.5
Mar86
Apr74.5
May5.52.5
Jun5.51.5
Jul5.50
Aug6.54
Sep74
Oct86
Nov8.56.5
Dec97

Air quality in Araras 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 Araras is worst in September — around 32 µg/m³ PM2.5 (moderate), about 2.1× the cleanest month (December, 16 µg/m³).

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecModerateSep 1032 µg/m³Dec 1516 µg/m³
PM2.5 (µg/m³)Level
Jan16Moderate
Feb17Moderate
Mar19Moderate
Apr22Moderate
May26Moderate
Jun28Moderate
Jul30Moderate
Aug31Moderate
Sep32Moderate
Oct22Moderate
Nov16Moderate
Dec16Moderate
Almanac & agriculture

Growing season

Chance of a frost-free dayFrost-free year round

Araras 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. Araras banks about 4,491 degree days a year, and the running total — which growers use to time plantings and predict maturity — climbs fastest around February.

01,0002,0003,0004,000JanFebMarAprMayJunJulAugSepOctNovDec
Growing degree days (°C·days)
Jan452
Feb410
Mar436
Apr379
May308
Jun272
Jul277
Aug321
Sep367
Oct416
Nov409
Dec443

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.

Araras receives about 5.1 kWh/m² a day of solar energy on average — bright — with a clear seasonal swing between 3.8 and 6.0 kWh/m².

The brighter stretch of the year lasts 7.1 months, from around Aug 24 to Mar 26. The brightest month is November, averaging about 6.0 kWh/m² (bright).

The dimmest month is June, down near 3.8 kWh/m² — roughly 37% less than the November peak.

01234567JanFebMarAprMayJunJulAugSepOctNovDecbrighterdimmerbrighterdimmoderatebrightintenseNov 226.0 kWhJun 33.8 kWh
Solar energy (kWh/m²)Level
Jan5.6Bright
Feb5.8Bright
Mar5.3Bright
Apr4.9Bright
May4.0Bright
Jun3.8Moderate
Jul4.0Bright
Aug4.9Bright
Sep5.5Bright
Oct5.9Bright
Nov6.0Bright
Dec5.9Bright

Where is Araras?

Araras sits at 22.4°S, 47.4°W, 634 m above sea level, in Brazil. The nearest listed city is Cordeirópolis, 16 km away.

Topography around Araras

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

Within 3 km, the terrain around Araras has only modest variations in elevation — a maximum elevation change of 121 m around an average of 641 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 241 m; within 80 km, large variations in elevation — a maximum elevation change of 885 m.

The land around Araras is covered by artificial surfaces (54%) within 3 km, cropland (61%) and trees (25%) within 16 km, and cropland (42%) and trees (33%) within 80 km.

3 km
121 m
16 km
241 m
80 km
885 m
treesgrasslandcroplandartificial surfaceswater
Nearby: Cordeirópolis 16 km · Santa Gertrudes 19 km · Leme 19 km · Rio Claro 19 km · Conchal 22 km · Engenheiro Coelho 23 km · Limeira 23 km · Iracemápolis 28 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 Araras (-22.3569°, -47.3842°, elevation 634 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).