Climate and average weather in São Manuel

In São Manuel, 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 late September

Over the course of the year, the temperature in São Manuel 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 Manuel for warm-weather activities is from mid April to late September.

Hottest
Feb
29°
Coldest
Jun
14°
Wettest
Jan
245 mm
Driest
Jul
35 mm
Rain / yr
1287 mm
139 wet days
Daylight
10.6–13.4 h
shortest–longest
Elevation
704 m
22.7°S
Clearest
Aug
36% cloud

São Manuel is human settlement in Brazil.

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

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

Temperatures in São Manuel 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 24°C.

Days typically run about 10°C warmer than nights, with the widest day–night swing (around 12°C) in August.

10°15°20°25°30°35°JanFebMarAprMayJunJulAugSepOctNovDec
Avg high (°C)Avg low (°C)
Jan2921
Feb2920
Mar2920
Apr2818
May2515
Jun2414
Jul2413
Aug2614
Sep2816
Oct2918
Nov2919
Dec2920

Average hourly temperature in São Manuel

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

São Manuel 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° / 21°24522.313.23.8
Feb29° / 20°17518.612.84.0
Mar29° / 20°13116.912.24.7
Apr28° / 18°557.511.56.7
May25° / 15°576.410.97.6
Jun24° / 14°434.810.68.1
Jul24° / 13°353.810.78.3
Aug26° / 14°354.111.28.0
Sep28° / 16°68811.96.9
Oct29° / 18°11512.212.55.3
Nov29° / 19°14414.713.14.9
Dec29° / 20°18419.613.44.2

Chance of rain

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

São Manuel gets about 1287 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 5.6 months, from around Oct 13 to Apr 1, peaking in January at about 71% chance on a given day. The drier stretch runs the rest of the year, bottoming out around Jul 1.

January is the wettest month by volume, with 245 mm over about 22 wet days; July is the driest, with 35 mm.

0%10%20%30%40%50%60%70%80%JanFebMarAprMayJunJulAugSepOctNovDecwetterdrierwettermostly drysome rainoften wetvery wetJan 17 · 71%Jul 1 · 12%
Rain on a day (%)Rain days
Jan7022
Feb6619
Mar5417
Apr268
May216
Jun165
Jul134
Aug144
Sep268
Oct4012
Nov5015
Dec6320

Monthly rainfall

Over a full year, São Manuel collects about 1287 mm of rain across 139 wet days — roughly 107 mm in an average month.

It doesn’t fall evenly. January is the wettest month with 245 mm, while July is the driest at just 35 mm. The three wettest months alone bring about 47% of the year’s total.

050100150200250300JanFebMarAprMayJunJulAugSepOctNovDec245175131555743353568115144184
Rainfall (mm)Rain days
Jan24522
Feb17519
Mar13117
Apr558
May576
Jun435
Jul354
Aug354
Sep688
Oct11512
Nov14415
Dec18420

Clouds and sunshine

ClearMostly clearPartly cloudyMostly cloudyOvercast

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

In São Manuel, 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 28 and lasts for 6.0 months, ending around September 26. The clearest month is August, when the sky is clear, mostly clear, or partly cloudy 72% of the time on average.

The cloudier part of the year begins around September 27 and lasts for 6.0 months, ending around March 27. The cloudiest month is January, when it is overcast or mostly cloudy 71% 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 · 75%Jan 14 · 27%clearmostly clearpartly cloudymostly cloudyovercastcloudierclearercloudier
Clearer (%)Cloudier (%)
Jan2971
Feb3565
Mar4753
Apr6040
May5743
Jun6337
Jul6733
Aug7228
Sep5941
Oct4159
Nov3862
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. The longest day, around January 1, brings about 13 h 24 min of light; the shortest, around June 9, 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)
Jan13.26:468:01
Feb12.87:057:52
Mar12.27:197:29
Apr11.57:306:59
May10.97:436:38
Jun10.67:566:33
Jul10.77:586:42
Aug11.27:426:55
Sep11.97:127:05
Oct12.56:437:15
Nov13.16:267:33
Dec13.46:297:52

Sunny days

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

São Manuel averages about 11 sunny days a month — counting the days the sky stays clear or mostly clear — with a clear seasonal swing between 4 and 19 days.

The sunnier stretch runs 5.9 months, from around Apr 2 to Sep 29. The sunniest month is August, with roughly 18 sunny days (bright).

The greyest month is January, down near 4 sunny days — about 76% fewer than the August peak.

0510152025JanFebMarAprMayJunJulAugSepOctNovDecgreyersunniergreyergloomymixedbrightbrilliantAug 2419 daysJan 94 days
Sunny daysSky
Jan4Gloomy
Feb5Gloomy
Mar9Mixed
Apr13Mixed
May14Mixed
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 Manuel, how humid it feels changes dramatically over the year.

The more humid part of the year lasts 6.6 months, from around October 10 to April 27. 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 28 to October 9, 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 15 · 95%Feb 27 · 1%oppressivecomfortablehumidmuggydryhumidcomfortablehumid
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
Jan02135926
Feb03126025
Mar03216115
Apr51936382
May23403350
Jun38441710
Jul5638600
Aug6131810
Sep37352250
Oct112540240
Nov51734413
Dec16235713

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 São Manuel is typically calm, near 10 km/h, and varies little with the seasons.

The windier part of the year lasts 4.7 months, from around Jul 27 to Dec 15. The windiest month is September, averaging about 11 km/h (calm).

The calmer part of the year runs from around Dec 16 to Jul 26, with February the calmest month at about 8 km/h.

051015JanFebMarAprMayJunJulAugSepOctNovDeccalmerwindiercalmlight breezeSep 24 · 12 km/hFeb 13 · 8 km/h
Wind speed (km/h)Feels
Jan9calm
Feb8calm
Mar9calm
Apr9calm
May9calm
Jun9calm
Jul9calm
Aug10calm
Sep11calm
Oct11calm
Nov11calm
Dec10calm

Hazard calendar for São Manuel

In seasonPeak

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

São Manuel'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 São Manuel

TravelBeach/poolTemperatureCloudsPrecipitation

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

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

0246810JanFebMarAprMayJunJulAugSepOctNovDecbest timetravel scoretemperaturecloudsprecipitationJul 1 · 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
Jan3.8fair
Feb4.0fair
Mar4.8fair
Apr6.7good
May7.5ideal
Jun8.1ideal
Jul8.3ideal
Aug7.9ideal
Sep6.9good
Oct5.4fair
Nov4.9fair
Dec4.2fair

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

024681012JanFebMarAprMayJunJulAugSepOctNovDecbest timebeach/pool scoretemperaturecloudsprecipitationAug 26 · 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 São Manuel, 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 Manuel 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 Manuel sees daytime highs around 29°C and nights near 20°C. Pack light clothes and rain gear. Worth having: sun protection. About 19 days see rain.

UV index (midday) in São Manuel 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 Manuel 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
Jul6High
Aug8Very high
Sep8Very high
Oct11Extreme
Nov13Extreme
Dec14Extreme

Average hourly UV index in São Manuel

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
Feb97
Mar86
Apr75
May62.5
Jun5.50.5
Jul50
Aug6.53.5
Sep74
Oct86
Nov8.56.5
Dec97

Air quality in São Manuel 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 Manuel is worst in September — around 22 µg/m³ PM2.5 (moderate), about 2.4× the cleanest month (November, 9 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodSep 1022 µg/m³Nov 239 µg/m³
PM2.5 (µg/m³)Level
Jan10Good
Feb10Good
Mar10Good
Apr11Good
May13Moderate
Jun14Moderate
Jul14Moderate
Aug22Moderate
Sep22Moderate
Oct17Moderate
Nov9Good
Dec9Good
Almanac & agriculture

Growing season

Chance of a frost-free dayFrost-free year round

São Manuel 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 Manuel banks about 4,476 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)
Jan459
Feb416
Mar442
Apr383
May308
Jun269
Jul271
Aug313
Sep354
Oct406
Nov408
Dec448

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 Manuel receives about 5.0 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 7.0 months, from around Aug 26 to Mar 27. The brightest month is November, averaging about 5.9 kWh/m² (bright).

The dimmest month is June, down near 3.6 kWh/m² — roughly 40% less than the November peak.

01234567JanFebMarAprMayJunJulAugSepOctNovDecbrighterdimmerbrighterdimmoderatebrightintenseNov 256.0 kWhJun 53.6 kWh
Solar energy (kWh/m²)Level
Jan5.6Bright
Feb5.7Bright
Mar5.2Bright
Apr4.8Bright
May3.9Moderate
Jun3.6Moderate
Jul3.8Moderate
Aug4.7Bright
Sep5.3Bright
Oct5.8Bright
Nov6.0Bright
Dec5.9Bright

Where is São Manuel?

São Manuel sits at 22.7°S, 48.6°W, 704 m above sea level, in Brazil. The nearest listed city is Botucatu, 21 km away.

Topography around São Manuel

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

Within 3 km, the terrain around São Manuel has only modest variations in elevation — a maximum elevation change of 152 m around an average of 731 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 457 m; within 80 km, large variations in elevation — a maximum elevation change of 645 m.

The land around São Manuel is covered by cropland (38%), artificial surfaces (21%) and trees (20%) within 3 km, cropland (57%) and trees (28%) within 16 km, and cropland (40%) and trees (39%) within 80 km.

3 km
152 m
16 km
457 m
80 km
645 m
treesgrasslandcroplandartificial surfaceswater
Nearby: Botucatu 21 km · Igaraçu do Tietê 25 km · Barra Bonita 26 km · Lençóis Paulista 28 km · Macatuba 29 km · Itatinga 41 km · Dois Córregos 45 km · Pederneiras 47 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 Manuel (-22.7311°, -48.5706°, elevation 704 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).