Climate and average weather in Pedreiras

In Pedreiras, the weather is muggy, sweltering, wet, and mostly clear and remarkably steady, with daytime highs holding near sweltering levels all year. The wettest stretch peaks around March.

Best: late May to late August

Over the course of the year, the temperature in Pedreiras typically varies from 23°C to 35°C, and is rarely below 21°C or above 37°C. October is the hottest month of the year, while March is the coldest.

Based on the travel score, the best time of year to visit Pedreiras for warm-weather activities is from late May to late August.

Hottest
Oct
35°
Coldest
Mar
23°
Wettest
Mar
326 mm
Driest
Aug
4 mm
Rain / yr
1470 mm
161 wet days
Daylight
11.7–12.3 h
shortest–longest
Elevation
58 m
4.6°S
Clearest
Aug
33% cloud

Pedreiras 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 May to late August.

Temperature through the year

Average highAverage lowShaded bands: 10–90% of days

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

Temperatures in Pedreiras stay fairly even through the year, without a distinct hot or cool season. The warmest month is October, with an average high of 35°C and low of 24°C; the coolest is March, with an average low of 23°C and high of 31°C.

Days typically run about 9°C warmer than nights, with the widest day–night swing (around 11°C) in August.

20°25°30°35°40°JanFebMarAprMayJunJulAugSepOctNovDec
Avg high (°C)Avg low (°C)
Jan3223
Feb3123
Mar3123
Apr3123
May3123
Jun3223
Jul3323
Aug3423
Sep3524
Oct3524
Nov3525
Dec3324

How hot and cold Pedreiras 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, Pedreiras feels like about 40°C (around October 15). Nearly every day a year carries some heat stress, and 56 of them tip into dangerous heat (feels-like above 39°C), peaking in October.

20°25°30°35°40°JanFebMarAprMayJunJulAugSepOctNovDecdangerous heat
Feels-like high (°C)Air high (°C)Feels-like low (°C)Air low (°C)
Jan37322323
Feb36312323
Mar37312323
Apr37312323
May37312323
Jun36322323
Jul35332223
Aug37342323
Sep39352424
Oct39352424
Nov39352425
Dec38332424

Average hourly temperature in Pedreiras

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 35°C, and coldest before dawn in March, near 23°C.

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

Pedreiras 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
Jan32° / 23°24725.412.22.6
Feb31° / 23°26124.912.12.6
Mar31° / 23°32629.2122.5
Apr31° / 23°26526.311.92.7
May31° / 23°12618.211.83.6
Jun32° / 23°295.911.74.5
Jul33° / 23°122.311.84.5
Aug34° / 23°40.811.93.8
Sep35° / 24°71.3123.1
Oct35° / 24°163.212.12.8
Nov35° / 25°498.212.22.8
Dec33° / 24°12915.612.32.8

Chance of rain

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

Pedreiras gets about 1470 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 5.5 months, from around Dec 12 to May 28, peaking in March at about 95% chance on a given day. The drier stretch runs the rest of the year, bottoming out around Aug 11.

March is the wettest month by volume, with 326 mm over about 29 wet days; August is the driest, with 4 mm.

0%10%20%30%40%50%60%70%80%90%100%110%JanFebMarAprMayJunJulAugSepOctNovDecwetterdriermostly drysome rainoften wetvery wetMar 21 · 95%Aug 11 · 2%
Rain on a day (%)Rain days
Jan8225
Feb8925
Mar9329
Apr8726
May5818
Jun216
Jul82
Aug21
Sep51
Oct113
Nov268
Dec5216

Monthly rainfall

Over a full year, Pedreiras collects about 1470 mm of rain across 161 wet days — roughly 123 mm in an average month.

It doesn’t fall evenly. March is the wettest month with 326 mm, while August is the driest at just 4 mm. The three wettest months alone bring about 58% of the year’s total.

050100150200250300350400JanFebMarAprMayJunJulAugSepOctNovDec2472613262651262912471649129
Rainfall (mm)Rain days
Jan24725
Feb26125
Mar32629
Apr26526
May12618
Jun296
Jul122
Aug41
Sep71
Oct163
Nov498
Dec12916

Clouds and sunshine

ClearMostly clearPartly cloudyMostly cloudyOvercast

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

In Pedreiras, 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 May 22 and lasts for 5.7 months, ending around November 10. The clearest month is September, when the sky is clear, mostly clear, or partly cloudy 90% of the time on average.

The cloudier part of the year begins around November 11 and lasts for 6.3 months, ending around May 21. The cloudiest month is March, when it is overcast or mostly cloudy 88% 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 3 · 91%Mar 23 · 10%clearmostly clearpartly cloudymostly cloudyovercastcloudierclearercloudier
Clearer (%)Cloudier (%)
Jan1684
Feb1585
Mar1288
Apr1882
May4357
Jun7525
Jul8515
Aug9010
Sep9010
Oct7723
Nov4951
Dec3466

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. Close to the equator, Pedreiras barely changes through the year: days stay near 12 h 18 min of light in every season.

12 AM4 AM8 AM12 PM4 PM8 PM12 AMJanFebMarAprMayJunJulAugSepOctNovDec
Daylight (h)Sunrise (AM)Sunset (PM)
Jan12.26:016:15
Feb12.16:086:17
Mar12.06:076:09
Apr11.96:025:56
May11.86:015:48
Jun11.76:065:51
Jul11.86:115:57
Aug11.96:075:58
Sep12.05:535:52
Oct12.15:405:46
Nov12.25:375:50
Dec12.35:476:02

Sunny days

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

Pedreiras averages about 9 sunny days a month — counting the days the sky stays clear or mostly clear — with a clear seasonal swing between 1 and 21 days.

The sunnier stretch runs 5.3 months, from around May 29 to Nov 5. The sunniest month is August, with roughly 21 sunny days (bright).

The greyest month is March, down near 1 sunny days — about 97% fewer than the August peak.

0510152025JanFebMarAprMayJunJulAugSepOctNovDecgreyersunniergreyergloomymixedbrightbrilliantAug 2821 daysMar 191 days
Sunny daysSky
Jan1Gloomy
Feb1Gloomy
Mar1Gloomy
Apr1Gloomy
May6Gloomy
Jun12Mixed
Jul17Bright
Aug21Bright
Sep20Bright
Oct15Mixed
Nov7Gloomy
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.

Pedreiras 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 August, the mildest month, the air is dry or comfortable only 2% of the time.

0%10%20%30%40%50%60%70%80%90%100%JanFebMarAprMayJunJulAugSepOctNovDecmiserableoppressivemuggyhumid
Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
Jan0017226
Feb0006139
Mar0004555
Apr0003268
May0014158
Jun01176813
Jul11339461
Aug21840400
Sep1543510
Oct0034650
Nov0017803
Dec0088012

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 Pedreiras is typically calm, near 6 km/h, and varies little with the seasons.

The windier part of the year lasts 6.2 months, from around Jun 6 to Dec 11. The windiest month is October, averaging about 8 km/h (calm).

The calmer part of the year runs from around Dec 12 to Jun 5, with March the calmest month at about 4 km/h.

051015JanFebMarAprMayJunJulAugSepOctNovDeccalmerwindiercalmlight breezeOct 8 · 8 km/hMar 25 · 4 km/h
Wind speed (km/h)Feels
Jan5calm
Feb5calm
Mar4calm
Apr5calm
May5calm
Jun7calm
Jul7calm
Aug8calm
Sep8calm
Oct8calm
Nov7calm
Dec6calm

Hazard calendar for Pedreiras

In seasonPeak

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

Pedreiras's monsoon runs January–April, 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 Pedreiras

TravelBeach/poolTemperatureCloudsPrecipitation

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

Around mid August, Pedreiras 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 Pedreiras for general outdoor tourist activities is from late May to late August, with a peak score in the third week of June.

0246810JanFebMarAprMayJunJulAugSepOctNovDecbest timetravel scoretemperaturecloudsprecipitationJun 18 · 4.6

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
Jan2.6poor
Feb2.6poor
Mar2.5poor
Apr2.8poor
May3.6fair
Jun4.5fair
Jul4.5fair
Aug3.8fair
Sep3.1poor
Oct2.8poor
Nov2.8poor
Dec2.8poor

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 Pedreiras for hot-weather activities is from late May to mid October, with a peak score in the first week of August.

024681012JanFebMarAprMayJunJulAugSepOctNovDecbest timebeach/pool scoretemperaturecloudsprecipitationAug 2 · 7.8

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 Pedreiras, 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.

Pedreiras packs about the same all year — highs hold near 35°C. Across the year the things worth having are light clothes, sun protection and rain gear.

Light clothing
Warm layer
Winter coat
Rain gear
Sun protection
Windbreaker

In October, Pedreiras sees daytime highs around 35°C and nights near 24°C. Pack light clothes and sun protection. About 3 days see rain.

UV index (midday) in Pedreiras 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 Pedreiras peaks around March 14 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near August 10 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 14UV 15Aug 10UV 10
UV index (midday)Level
Jan13Extreme
Feb14Extreme
Mar15Extreme
Apr14Extreme
May11Extreme
Jun10Extreme
Jul10Very high
Aug10Very high
Sep12Extreme
Oct12Extreme
Nov11Extreme
Dec11Extreme

Average hourly UV index in Pedreiras

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 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)
Jan86
Feb8.56.5
Mar86.5
Apr86.5
May7.55.5
Jun7.55
Jul7.55
Aug7.55
Sep7.55.5
Oct86
Nov85.5
Dec7.55.5

Air quality in Pedreiras 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 Pedreiras is worst in October — around 35 µg/m³ PM2.5 (moderate), about 4.0× the cleanest month (June, 9 µg/m³).

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodModerateOct 2134 µg/m³Jun 159 µg/m³
PM2.5 (µg/m³)Level
Jan15Moderate
Feb15Moderate
Mar14Moderate
Apr13Moderate
May10Good
Jun9Good
Jul11Good
Aug13Moderate
Sep19Moderate
Oct35Moderate
Nov30Moderate
Dec23Moderate
Almanac & agriculture

Growing season

Chance of a frost-free dayFrost-free year round

Pedreiras 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. Pedreiras banks about 6,564 degree days a year, and the running total — which growers use to time plantings and predict maturity — climbs fastest around October.

02,0004,0006,000JanFebMarAprMayJunJulAugSepOctNovDec
Growing degree days (°C·days)
Jan537
Feb475
Mar522
Apr506
May531
Jun518
Jul545
Aug571
Sep582
Oct615
Nov584
Dec578

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.

Pedreiras receives about 5.3 kWh/m² a day of solar energy on average — bright — with a clear seasonal swing between 4.3 and 6.4 kWh/m².

The brighter stretch of the year lasts 5.3 months, from around Jul 11 to Dec 19. The brightest month is October, averaging about 6.3 kWh/m² (intense).

The dimmest month is April, down near 4.3 kWh/m² — roughly 31% less than the October peak.

01234567JanFebMarAprMayJunJulAugSepOctNovDecdimmerbrighterdimmoderatebrightintenseOct 16.4 kWhApr 24.3 kWh
Solar energy (kWh/m²)Level
Jan4.7Bright
Feb4.6Bright
Mar4.4Bright
Apr4.4Bright
May4.6Bright
Jun5.0Bright
Jul5.4Bright
Aug6.0Bright
Sep6.3Intense
Oct6.3Intense
Nov5.8Bright
Dec5.4Bright

Where is Pedreiras?

Pedreiras sits at 4.6°S, 44.6°W, 58 m above sea level, in Brazil. The nearest listed city is Trizidela do Vale, 3.0 km away.

Topography around Pedreiras

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

Within 3 km, the terrain around Pedreiras has only modest variations in elevation — a maximum elevation change of 89 m around an average of 49 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 136 m; within 80 km, significant variations in elevation — a maximum elevation change of 289 m.

The land around Pedreiras is covered by grassland (46%) and trees (34%) within 3 km, trees (49%) and grassland (48%) within 16 km, and grassland (51%) and trees (45%) within 80 km.

3 km
89 m
16 km
136 m
80 km
289 m
treesshrubsgrasslandartificial surfaceswater
Nearby: Trizidela do Vale 3.0 km · São Luís Gonzaga do Maranhão 23 km · Peritoró 35 km · Alto Alegre do Maranhão 43 km · Bacabal 43 km · Poção de Pedras 44 km · Esperantinópolis 47 km · Dom Pedro 55 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 Pedreiras (-4.5689°, -44.5919°, elevation 58 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).