Climate and average weather in São Pedro

In São Pedro, 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 São Pedro 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 São Pedro for warm-weather activities is from mid April to early September.

Hottest
Feb
29°
Coldest
Jun
13°
Wettest
Jan
288 mm
Driest
Jul
32 mm
Rain / yr
1517 mm
152 wet days
Daylight
10.6–13.4 h
shortest–longest
Elevation
566 m
22.5°S
Clearest
Aug
35% cloud

São Pedro is human settlement in Brazil.

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

São Pedro 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 São Pedro, from 1991–2020 of climate data. The shaded bands show the range most days fall in — 10th to 90th percentile.

Temperatures in São Pedro 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 13°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
Mar2920
Apr2818
May2515
Jun2513
Jul2513
Aug2713
Sep2816
Oct2918
Nov2919
Dec2920

Average hourly temperature in São Pedro

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 13°C.

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

São Pedro 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°28823.713.23.7
Feb29° / 20°22820.512.83.8
Mar29° / 20°18319.412.24.5
Apr28° / 18°69911.56.4
May25° / 15°566.510.97.5
Jun25° / 13°404.810.68.0
Jul25° / 13°323.910.88.2
Aug27° / 13°324.111.27.9
Sep28° / 16°698.511.96.3
Oct29° / 18°12713.612.55.0
Nov29° / 19°17616.413.14.7
Dec29° / 20°21621.813.44.0

Chance of rain

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

São Pedro gets about 1517 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 11 to Apr 4, peaking in January at about 77% chance on a given day. The drier stretch runs the rest of the year, bottoming out around Jun 30.

January is the wettest month by volume, with 288 mm over about 24 wet days; July is the driest, with 32 mm.

0%10%20%30%40%50%60%70%80%90%JanFebMarAprMayJunJulAugSepOctNovDecwetterdrierwettermostly drysome rainoften wetvery wetJan 25 · 77%Jun 30 · 12%
Rain on a day (%)Rain days
Jan7524
Feb7321
Mar6119
Apr319
May217
Jun165
Jul134
Aug144
Sep289
Oct4414
Nov5516
Dec7022

Monthly rainfall

Over a full year, São Pedro collects about 1517 mm of rain across 152 wet days — roughly 126 mm in an average month.

It doesn’t fall evenly. January is the wettest month with 288 mm, while July is the driest at just 32 mm. The three wettest months alone bring about 48% of the year’s total.

050100150200250300350JanFebMarAprMayJunJulAugSepOctNovDec288228183695640323269127176216
Rainfall (mm)Rain days
Jan28824
Feb22821
Mar18319
Apr699
May567
Jun405
Jul324
Aug324
Sep699
Oct12714
Nov17616
Dec21622

Clouds and sunshine

ClearMostly clearPartly cloudyMostly cloudyOvercast

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

In São Pedro, 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 27. The clearest month is August, when the sky is clear, mostly clear, or partly cloudy 74% of the time on average.

The cloudier part of the year begins around September 28 and lasts for 5.9 months, ending around March 26. The cloudiest month is January, when it is overcast or mostly cloudy 72% 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 · 76%Jan 11 · 27%clearmostly clearpartly cloudymostly cloudyovercastcloudierclearercloudier
Clearer (%)Cloudier (%)
Jan2872
Feb3565
Mar4753
Apr6139
May5941
Jun6535
Jul6832
Aug7426
Sep6238
Oct4357
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 January 1, brings about 13 h 24 min of light; the shortest, around June 11, 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)
Jan13.26:447:58
Feb12.87:037:49
Mar12.27:167:26
Apr11.57:286:56
May10.97:406:36
Jun10.67:536:31
Jul10.87:556:40
Aug11.27:396:52
Sep11.97:107:02
Oct12.56:417:13
Nov13.16:247:30
Dec13.46:277:49

Sunny days

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

São Pedro 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 19 days.

The sunnier stretch runs 5.9 months, from around Apr 5 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 78% fewer than the August peak.

0510152025JanFebMarAprMayJunJulAugSepOctNovDecgreyersunniergreyergloomymixedbrightbrilliantAug 2319 daysJan 63 days
Sunny daysSky
Jan4Gloomy
Feb6Gloomy
Mar9Mixed
Apr13Mixed
May13Mixed
Jun15Bright
Jul18Bright
Aug19Bright
Sep14Mixed
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 São Pedro, 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 February, 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 95% of the time.

0%10%20%30%40%50%60%70%80%90%100%JanFebMarAprMayJunJulAugSepOctNovDecJul 14 · 96%Feb 27 · 1%oppressivecomfortablemuggyhumiddryhumidcomfortablehumid
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
Jan02126125
Feb03116323
Mar03196414
Apr51934393
May24403250
Jun37461610
Jul5837500
Aug6428800
Sep38322460
Oct122240260
Nov41632443
Dec05216212

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 São Pedro 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 23 · 10 km/hFeb 19 · 7 km/h
Wind speed (km/h)Feels
Jan8calm
Feb7calm
Mar8calm
Apr8calm
May8calm
Jun8calm
Jul8calm
Aug9calm
Sep10calm
Oct10calm
Nov9calm
Dec8calm

Hazard calendar for São Pedro

In seasonPeak

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

São Pedro'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 Pedro

TravelBeach/poolTemperatureCloudsPrecipitation

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

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

0246810JanFebMarAprMayJunJulAugSepOctNovDecbest timetravel scoretemperaturecloudsprecipitationJul 13 · 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
Apr6.4good
May7.5ideal
Jun8.1ideal
Jul8.2ideal
Aug7.8ideal
Sep6.3good
Oct5.1fair
Nov4.7fair
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 São Pedro 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 26 · 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 São Pedro, 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 Pedro 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, São Pedro sees daytime highs around 29°C and nights near 20°C. Pack light clothes and rain gear. Worth having: sun protection. About 21 days see rain.

UV index (midday) in São Pedro 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 Pedro peaks around January 20 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 11 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 11UV 6
UV index (midday)Level
Jan15Extreme
Feb15Extreme
Mar12Extreme
Apr10Very high
May7High
Jun6High
Jul6High
Aug8Very high
Sep9Very high
Oct11Extreme
Nov13Extreme
Dec14Extreme

Average hourly UV index in São Pedro

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
Apr75
May62.5
Jun5.51
Jul5.50
Aug6.54
Sep74.5
Oct85.5
Nov8.56.5
Dec97

Air quality in São Pedro 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 Pedro is worst in September — around 25 µg/m³ PM2.5 (moderate), about 2.3× the cleanest month (December, 11 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodSep 1125 µg/m³Dec 1211 µg/m³
PM2.5 (µg/m³)Level
Jan11Good
Feb12Good
Mar12Moderate
Apr14Moderate
May16Moderate
Jun17Moderate
Jul18Moderate
Aug24Moderate
Sep25Moderate
Oct18Moderate
Nov11Good
Dec11Good
Almanac & agriculture

Growing season

Chance of a frost-free dayFrost-free year round

São Pedro 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 Pedro banks about 4,451 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)
Jan455
Feb412
Mar438
Apr379
May304
Jun267
Jul268
Aug310
Sep356
Oct409
Nov407
Dec446

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 Pedro receives about 5.1 kWh/m² a day of solar energy on average — bright — with a clear seasonal swing between 3.6 and 6.0 kWh/m².

The brighter stretch of the year lasts 7.1 months, from around Aug 26 to Mar 28. The brightest month is November, averaging about 6.0 kWh/m² (bright).

The dimmest month is June, down near 3.7 kWh/m² — roughly 39% less than the November peak.

01234567JanFebMarAprMayJunJulAugSepOctNovDecbrighterdimmerbrighterdimmoderatebrightintenseNov 246.0 kWhJun 43.6 kWh
Solar energy (kWh/m²)Level
Jan5.6Bright
Feb5.8Bright
Mar5.3Bright
Apr4.8Bright
May4.0Moderate
Jun3.6Moderate
Jul3.9Moderate
Aug4.8Bright
Sep5.4Bright
Oct5.8Bright
Nov6.0Intense
Dec6.0Bright

Where is São Pedro?

São Pedro sits at 22.5°S, 47.9°W, 566 m above sea level, in Brazil. The nearest listed city is Charqueada, 15 km away.

Topography around São Pedro

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

Within 3 km, the terrain around São Pedro has significant variations in elevation — a maximum elevation change of 357 m around an average of 579 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 636 m; within 80 km, large variations in elevation — a maximum elevation change of 659 m.

The land around São Pedro is covered by trees (35%), grassland (34%) and artificial surfaces (24%) within 3 km, trees (37%), grassland (32%) and cropland (29%) within 16 km, and cropland (45%) and trees (30%) within 80 km.

3 km
357 m
16 km
636 m
80 km
659 m
treesgrasslandcroplandartificial surfaceswater
Nearby: Charqueada 15 km · Piracicaba 34 km · Itirapina 34 km · Brotas 37 km · Rio Claro 39 km · Santa Gertrudes 41 km · Iracemápolis 41 km · Rio das Pedras 46 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 Pedro (-22.5486°, -47.9139°, elevation 566 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).