Climate and average weather in Rio das Pedras

In Rio das Pedras, 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: late April to early September

Over the course of the year, the temperature in Rio das Pedras typically varies from 13°C to 30°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 Rio das Pedras for warm-weather activities is from late April to early September.

Hottest
Feb
30°
Coldest
Jun
14°
Wettest
Jan
266 mm
Driest
Aug
32 mm
Rain / yr
1373 mm
141 wet days
Daylight
10.6–13.4 h
shortest–longest
Elevation
625 m
22.8°S
Clearest
Aug
34% cloud

Rio das Pedras 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 early September.

Temperature through the year

Average highAverage lowShaded bands: 10–90% of days

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

Temperatures in Rio das Pedras stay fairly even through the year, without a distinct hot or cool season. The warmest month is February, with an average high of 30°C and low of 21°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°20°30°40°JanFebMarAprMayJunJulAugSepOctNovDec
Avg high (°C)Avg low (°C)
Jan3021
Feb3021
Mar2920
Apr2818
May2615
Jun2514
Jul2513
Aug2714
Sep2916
Oct2918
Nov2919
Dec3020

Average hourly temperature in Rio das Pedras

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 30°C, and coldest before dawn in June, near 14°C.

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

Rio das Pedras 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° / 21°26622.513.23.6
Feb30° / 21°18718.612.83.8
Mar29° / 20°14717.112.24.5
Apr28° / 18°607.711.56.3
May26° / 15°566.210.97.5
Jun25° / 14°404.610.68.0
Jul25° / 13°35410.78.1
Aug27° / 14°32411.27.7
Sep29° / 16°708.111.96.1
Oct29° / 18°11512.612.55.0
Nov29° / 19°16015.413.14.6
Dec30° / 20°2082013.43.9

Chance of rain

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

Rio das Pedras gets about 1373 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 2, peaking in January at about 73% chance on a given day. The drier stretch runs the rest of the year, bottoming out around Aug 13.

January is the wettest month by volume, with 266 mm over about 23 wet days; August is the driest, with 32 mm.

0%10%20%30%40%50%60%70%80%JanFebMarAprMayJunJulAugSepOctNovDecwetterdrierwettermostly drysome rainoften wetvery wetJan 20 · 73%Aug 13 · 12%
Rain on a day (%)Rain days
Jan7123
Feb6619
Mar5417
Apr278
May206
Jun155
Jul134
Aug134
Sep268
Oct4113
Nov5115
Dec6520

Monthly rainfall

Over a full year, Rio das Pedras collects about 1373 mm of rain across 141 wet days — roughly 114 mm in an average month.

It doesn’t fall evenly. January is the wettest month with 266 mm, while August is the driest at just 32 mm. The three wettest months alone bring about 48% of the year’s total.

050100150200250300JanFebMarAprMayJunJulAugSepOctNovDec266187147605640353270115160208
Rainfall (mm)Rain days
Jan26623
Feb18719
Mar14717
Apr608
May566
Jun405
Jul354
Aug324
Sep708
Oct11513
Nov16015
Dec20820

Clouds and sunshine

ClearMostly clearPartly cloudyMostly cloudyOvercast

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

In Rio das Pedras, 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 24 and lasts for 6.1 months, ending around September 25. The clearest month is August, when the sky is clear, mostly clear, or partly cloudy 73% of the time on average.

The cloudier part of the year begins around September 26 and lasts for 5.9 months, ending around March 23. The cloudiest month is January, when it is overcast or mostly cloudy 69% 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 23 · 76%Jan 8 · 28%clearmostly clearpartly cloudymostly cloudyovercastcloudierclearercloudier
Clearer (%)Cloudier (%)
Jan3169
Feb4060
Mar5149
Apr6337
May5941
Jun6634
Jul6832
Aug7327
Sep6238
Oct4357
Nov4159
Dec3664

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 24 min of light; the shortest, around June 8, 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)
Jan13.26:427:58
Feb12.87:017:49
Mar12.27:157:25
Apr11.57:276:55
May10.97:406:34
Jun10.67:526:29
Jul10.77:546:38
Aug11.27:386:51
Sep11.97:097:01
Oct12.56:397:12
Nov13.16:227:29
Dec13.46:257:48

Sunny days

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

Rio das Pedras averages about 12 sunny days a month — counting the days the sky stays clear or mostly clear — with a clear seasonal swing between 4 and 20 days.

The sunnier stretch runs 5.9 months, from around Apr 1 to Sep 27. The sunniest month is August, with roughly 19 sunny days (bright).

The greyest month is January, down near 5 sunny days — about 74% fewer than the August peak.

0510152025JanFebMarAprMayJunJulAugSepOctNovDecgreyersunniergreyergloomymixedbrightbrilliantAug 2320 daysJan 84 days
Sunny daysSky
Jan5Gloomy
Feb6Gloomy
Mar10Mixed
Apr14Mixed
May14Mixed
Jun16Bright
Jul18Bright
Aug19Bright
Sep14Mixed
Oct9Mixed
Nov7Gloomy
Dec6Gloomy

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 Rio das Pedras, how humid it feels changes dramatically over the year.

The more humid part of the year lasts 6.6 months, from around October 8 to April 26. The muggiest month is March, when the air feels humid, muggy or worse about 97% of the time.

The most comfortable stretch runs from around April 27 to October 7, and July is the most comfortable month — the air is dry or comfortable 94% of the time.

0%10%20%30%40%50%60%70%80%90%100%JanFebMarAprMayJunJulAugSepOctNovDecJul 17 · 95%Mar 2 · 0%oppressivecomfortablehumidmuggydryhumidcomfortablehumid
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
Jan01135531
Feb02115729
Mar03186217
Apr52034393
May23403160
Jun36461710
Jul5638600
Aug6129900
Sep37332460
Oct122140260
Nov41634424
Dec15225715

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 Rio das Pedras is steady company: average speeds sit near 9 km/hcalm — in every month of the year, with no meaningful windy or calm season.

051015JanFebMarAprMayJunJulAugSepOctNovDeccalmlight breezeSep 21 · 10 km/hFeb 23 · 8 km/h
Wind speed (km/h)Feels
Jan8calm
Feb8calm
Mar8calm
Apr8calm
May8calm
Jun8calm
Jul9calm
Aug9calm
Sep10calm
Oct10calm
Nov10calm
Dec9calm

Hazard calendar for Rio das Pedras

In seasonPeak

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

Rio das Pedras's rainy season runs November–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 Rio das Pedras

TravelBeach/poolTemperatureCloudsPrecipitation

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

Around late April, Rio das Pedras 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 Rio das Pedras for general outdoor tourist activities is from late April to early September, with a peak score in the second week of July.

0246810JanFebMarAprMayJunJulAugSepOctNovDecbest timetravel scoretemperaturecloudsprecipitationJul 11 · 8.2

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
Jan3.6fair
Feb3.8fair
Mar4.5fair
Apr6.3good
May7.5good
Jun8.0ideal
Jul8.1ideal
Aug7.7ideal
Sep6.1good
Oct5.0fair
Nov4.6fair
Dec3.9fair

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 Rio das Pedras for hot-weather activities is from late March to mid October, with a peak score in the last week of August.

024681012JanFebMarAprMayJunJulAugSepOctNovDecbest timebeach/pool scoretemperaturecloudsprecipitationAug 25 · 8.1

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 Rio das Pedras, 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.

Rio das Pedras 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 February, Rio das Pedras sees daytime highs around 30°C and nights near 21°C. Pack light clothes and rain gear. Worth having: sun protection. About 19 days see rain.

UV index (midday) in Rio das Pedras 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 Rio das Pedras peaks around January 20 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 12 at about 5 (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 5
UV index (midday)Level
Jan15Extreme
Feb14Extreme
Mar12Extreme
Apr9Very high
May7High
Jun6High
Jul5High
Aug8Very high
Sep8Very high
Oct11Extreme
Nov13Extreme
Dec13Extreme

Average hourly UV index in Rio das Pedras

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
Jun50
Jul50
Aug6.53.5
Sep74
Oct85.5
Nov8.56.5
Dec8.56.5

Air quality in Rio das Pedras 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 Rio das Pedras 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

Rio das Pedras 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. Rio das Pedras banks about 4,649 degree days a year, and the running total — which growers use to time plantings and predict maturity — climbs fastest around February.

01,0002,0003,0004,0005,000JanFebMarAprMayJunJulAugSepOctNovDec
Growing degree days (°C·days)
Jan470
Feb427
Mar453
Apr394
May321
Jun281
Jul286
Aug330
Sep376
Oct426
Nov423
Dec462

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.

Rio das Pedras receives about 5.1 kWh/m² a day of solar energy on average — bright — with a clear seasonal swing between 3.6 and 6.1 kWh/m².

The brighter stretch of the year lasts 7.1 months, from around Aug 27 to Mar 30. The brightest month is November, averaging about 6.0 kWh/m² (intense).

The dimmest month is June, down near 3.6 kWh/m² — roughly 39% less than the November peak.

01234567JanFebMarAprMayJunJulAugSepOctNovDecbrighterdimmerbrighterdimmoderatebrightintenseNov 256.1 kWhJun 23.6 kWh
Solar energy (kWh/m²)Level
Jan5.6Bright
Feb5.8Bright
Mar5.3Bright
Apr4.8Bright
May3.9Moderate
Jun3.6Moderate
Jul3.9Moderate
Aug4.7Bright
Sep5.4Bright
Oct5.8Bright
Nov6.0Intense
Dec6.0Bright

Where is Rio das Pedras?

Rio das Pedras sits at 22.8°S, 47.6°W, 625 m above sea level, in Brazil. The nearest listed city is Piracicaba, 14 km away.

Topography around Rio das Pedras

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

Within 3 km, the terrain around Rio das Pedras has only modest variations in elevation — a maximum elevation change of 153 m around an average of 627 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 246 m; within 80 km, large variations in elevation — a maximum elevation change of 845 m.

The land around Rio das Pedras is covered by cropland (58%) within 3 km, cropland (51%) and trees (23%) within 16 km, and cropland (35%), trees (31%) and grassland (25%) within 80 km.

3 km
153 m
16 km
246 m
80 km
845 m
treesgrasslandcroplandartificial surfaceswater
Nearby: Piracicaba 14 km · Capivari 20 km · Santa Bárbara d'Oeste 22 km · Americana 30 km · Iracemápolis 31 km · Tietê 31 km · Monte Mor 32 km · Elias Fausto 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 Rio das Pedras (-22.8433°, -47.6061°, elevation 625 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).