Climate and average weather in São Miguel dos Campos

In São Miguel dos Campos, the weather is muggy, hot, wet, and partly cloudy and remarkably steady, with daytime highs holding near hot levels all year. The wettest stretch peaks around June.

Best: late May to early January

Over the course of the year, the temperature in São Miguel dos Campos typically varies from 21°C to 31°C, and is rarely below 20°C or above 32°C. March is the hottest month of the year, while July is the coldest.

Based on the travel score, the best time of year to visit São Miguel dos Campos for warm-weather activities is from late May to early January.

Hottest
Mar
31°
Coldest
Jul
21°
Wettest
Jun
134 mm
Driest
Dec
33 mm
Rain / yr
935 mm
219 wet days
Daylight
11.4–12.6 h
shortest–longest
Elevation
13 m
9.8°S
Clearest
Oct
47% cloud

São Miguel dos Campos 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 early January.

Temperature through the year

Average highAverage lowShaded bands: 10–90% of days

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

Temperatures in São Miguel dos Campos stay fairly even through the year, without a distinct hot or cool season. The warmest month is March, with an average high of 31°C and low of 24°C; the coolest is July, with an average low of 21°C and high of 27°C.

Days typically run about 6°C warmer than nights year-round.

15°20°25°30°35°JanFebMarAprMayJunJulAugSepOctNovDec
Avg high (°C)Avg low (°C)
Jan3024
Feb3024
Mar3124
Apr3024
May2823
Jun2722
Jul2721
Aug2721
Sep2822
Oct2922
Nov3023
Dec3024

How hot and cold São Miguel dos Campos 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, São Miguel dos Campos feels like about 35°C (around March 5). About 190 days a year carry some heat stress, peaking in March.

20°25°30°35°JanFebMarAprMayJunJulAugSepOctNovDec
Feels-like high (°C)Air high (°C)Feels-like low (°C)Air low (°C)
Jan34302424
Feb34302424
Mar34312424
Apr34302424
May31282323
Jun29272222
Jul26272121
Aug27272121
Sep29282222
Oct31292222
Nov33302323
Dec34302424

Average hourly temperature in São Miguel dos Campos

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 March afternoons, near 31°C, and coldest before dawn in July, near 21°C.

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

São Miguel dos Campos 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° / 24°5615.612.54.3
Feb30° / 24°5816.612.33.9
Mar31° / 24°6918.912.13.9
Apr30° / 24°9919.711.84.0
May28° / 23°12422.311.64.3
Jun27° / 22°13423.711.44.5
Jul27° / 21°13224.511.54.6
Aug27° / 21°8622.311.74.9
Sep28° / 22°5917.511.95.4
Oct29° / 22°4814.612.25.3
Nov30° / 23°3611.212.45.1
Dec30° / 24°331212.64.8

Chance of rain

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

São Miguel dos Campos gets about 935 mm of precipitation a year. On a typical day the chance of rain is very wet, but that rises and falls sharply with the seasons.

The wetter season lasts 6.1 months, from around Mar 15 to Sep 15, peaking in June at about 80% chance on a given day. The drier stretch runs the rest of the year, bottoming out around Dec 4.

June is the wettest month by volume, with 134 mm over about 24 wet days; December is the driest, with 33 mm.

0%10%20%30%40%50%60%70%80%90%JanFebMarAprMayJunJulAugSepOctNovDecdrierwetterdriermostly drysome rainoften wetvery wetJun 28 · 80%Dec 4 · 34%
Rain on a day (%)Rain days
Jan5016
Feb5917
Mar6019
Apr6720
May7222
Jun7924
Jul7825
Aug7222
Sep5918
Oct4715
Nov3811
Dec3812

Monthly rainfall

Over a full year, São Miguel dos Campos collects about 935 mm of rain across 219 wet days — roughly 78 mm in an average month.

It doesn’t fall evenly. June is the wettest month with 134 mm, while December is the driest at just 33 mm. The three wettest months alone bring about 42% of the year’s total.

0255075100125150175JanFebMarAprMayJunJulAugSepOctNovDec565869991241341328659483633
Rainfall (mm)Rain days
Jan5616
Feb5817
Mar6919
Apr9920
May12422
Jun13424
Jul13225
Aug8622
Sep5918
Oct4815
Nov3611
Dec3312

Clouds and sunshine

ClearMostly clearPartly cloudyMostly cloudyOvercast

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

In São Miguel dos Campos, 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 August 8 and lasts for 3.5 months, ending around November 22. The clearest month is September, when the sky is clear, mostly clear, or partly cloudy 77% of the time on average.

The cloudier part of the year begins around March 10 and lasts for 5.0 months, ending around August 7. The cloudiest month is May, when it is overcast or mostly cloudy 44% 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 27 · 83%May 2 · 53%clearmostly clearpartly cloudymostly cloudyovercastcloudierclearercloudier
Clearer (%)Cloudier (%)
Jan5941
Feb5941
Mar6238
Apr5842
May5644
Jun5941
Jul5743
Aug6634
Sep7723
Oct7624
Nov6832
Dec6337

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 12 h 36 min of light; the shortest, around June 8, only 11 h 24 min — a swing of roughly 1 h 12 min.

12 AM4 AM8 AM12 PM4 PM8 PM12 AMJanFebMarAprMayJunJulAugSepOctNovDec
Daylight (h)Sunrise (AM)Sunset (PM)
Jan12.55:185:49
Feb12.35:295:49
Mar12.15:325:36
Apr11.85:315:18
May11.65:345:07
Jun11.45:425:08
Jul11.55:465:14
Aug11.75:385:19
Sep11.95:205:17
Oct12.25:035:16
Nov12.44:565:23
Dec12.65:035:38

Sunny days

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

São Miguel dos Campos averages about 11 sunny days a month — counting the days the sky stays clear or mostly clear — with a clear seasonal swing between 7 and 14 days.

The sunnier stretch runs 4.8 months, from around Sep 18 to Feb 11. The sunniest month is December, with roughly 13 sunny days (mixed).

The greyest month is August, down near 7 sunny days — about 45% fewer than the December peak.

05101520JanFebMarAprMayJunJulAugSepOctNovDecsunniergreyersunniergloomymixedbrightDec 914 daysAug 137 days
Sunny daysSky
Jan12Mixed
Feb10Mixed
Mar13Mixed
Apr10Mixed
May9Mixed
Jun8Mixed
Jul8Gloomy
Aug7Gloomy
Sep10Mixed
Oct13Mixed
Nov13Mixed
Dec13Mixed

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.

São Miguel dos Campos 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 January, the mildest month, the air is dry or comfortable only 0% of the time.

0%10%20%30%40%50%60%70%80%90%100%JanFebMarAprMayJunJulAugSepOctNovDecmiserableoppressivemuggy
Humid (%)Muggy (%)Oppressive (%)Miserable (%)
Jan09902
Feb03934
Mar02927
Apr01908
May05932
Jun022780
Jul156430
Aug274240
Sep163360
Oct042580
Nov022780
Dec013870

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 Miguel dos Campos is typically calm, near 11 km/h, and varies little with the seasons.

The windier part of the year lasts 5.5 months, from around Aug 31 to Feb 13. The windiest month is December, averaging about 13 km/h (light breeze).

The calmer part of the year runs from around Feb 14 to Aug 30, with May the calmest month at about 9 km/h.

05101520JanFebMarAprMayJunJulAugSepOctNovDecwindiercalmerwindiercalmlight breezeDec 3 · 14 km/hMay 4 · 9 km/h
Wind speed (km/h)Feels
Jan12calm
Feb11calm
Mar10calm
Apr9calm
May9calm
Jun10calm
Jul10calm
Aug11calm
Sep12calm
Oct13light breeze
Nov14light breeze
Dec13light breeze

Hazard calendar for São Miguel dos Campos

In seasonPeak

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

São Miguel dos Campos's rainy season runs March–August, 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 Miguel dos Campos

TravelBeach/poolTemperatureCloudsPrecipitation

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

Around early June, São Miguel dos Campos 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 Miguel dos Campos for general outdoor tourist activities is from late May to early January, with a peak score in the last week of September.

0246810JanFebMarAprMayJunJulAugSepOctNovDecbest timetravel scoretemperaturecloudsprecipitationSep 25 · 5.6

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
Jan4.3fair
Feb4.0fair
Mar3.9fair
Apr4.0fair
May4.3fair
Jun4.5fair
Jul4.6fair
Aug4.9fair
Sep5.3fair
Oct5.3fair
Nov5.1fair
Dec4.8fair

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 Miguel dos Campos for hot-weather activities is from mid September to mid March, with a peak score in the first week of December.

024681012JanFebMarAprMayJunJulAugSepOctNovDecbest timebest timebeach/pool scoretemperaturecloudsprecipitationDec 5 · 6.9

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 Miguel dos Campos, 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 Miguel dos Campos packs about the same all year — highs hold near 31°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 March, São Miguel dos Campos sees daytime highs around 31°C and nights near 24°C. Pack light clothes, rain gear and sun protection. About 19 days see rain.

Sea temperature near São Miguel dos Campos

Average ocean temperature at the nearest coast, month by month, banded into swim-comfort zones — the other half of the beach question.

The sea at the nearest coast (about 26 km away) is warmest in April at about 29°C and coldest in August near 26°C.

The water stays above 20°C all year — warm enough for a swim any month.

24°26°28°30°JanFebMarAprMayJunJulAugSepOctNovDecwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan28Warm
Feb28Tropical
Mar28Tropical
Apr29Tropical
May28Tropical
Jun27Warm
Jul26Warm
Aug26Warm
Sep26Warm
Oct26Warm
Nov27Warm
Dec27Warm

UV index (midday) in São Miguel dos Campos 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 Miguel dos Campos peaks around March 11 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 23 at about 9 (very high).

The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highExtremeMar 11UV 15Jun 23UV 9
UV index (midday)Level
Jan14Extreme
Feb14Extreme
Mar15Extreme
Apr13Extreme
May10Extreme
Jun9Very high
Jul9Very high
Aug10Very high
Sep12Extreme
Oct12Extreme
Nov12Extreme
Dec12Extreme

Average hourly UV index in São Miguel dos Campos

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 8.5 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)
Jan8.56.5
Feb8.56.5
Mar8.56.5
Apr86
May75
Jun74.5
Jul75
Aug75
Sep86
Oct86
Nov86
Dec86
Almanac & agriculture

Growing season

Chance of a frost-free dayFrost-free year round

São Miguel dos Campos 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 Miguel dos Campos banks about 5,745 degree days a year, and the running total — which growers use to time plantings and predict maturity — climbs fastest around March.

02,0004,0006,000JanFebMarAprMayJunJulAugSepOctNovDec
Growing degree days (°C·days)
Jan526
Feb480
Mar533
Apr499
May483
Jun435
Jul428
Aug427
Sep436
Oct482
Nov491
Dec524

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 Miguel dos Campos receives about 5.5 kWh/m² a day of solar energy on average — bright — with a clear seasonal swing between 4.0 and 6.4 kWh/m².

The brighter stretch of the year lasts 6.9 months, from around Sep 16 to Apr 12. The brightest month is December, averaging about 6.4 kWh/m² (intense).

The dimmest month is June, down near 4.1 kWh/m² — roughly 36% less than the December peak.

012345678JanFebMarAprMayJunJulAugSepOctNovDecbrighterdimmerbrighterdimmoderatebrightintenseDec 46.4 kWhJun 274.0 kWh
Solar energy (kWh/m²)Level
Jan6.3Intense
Feb6.3Intense
Mar6.0Intense
Apr5.4Bright
May4.5Bright
Jun4.1Bright
Jul4.1Bright
Aug4.7Bright
Sep5.5Bright
Oct6.1Intense
Nov6.4Intense
Dec6.4Intense

Where is São Miguel dos Campos?

São Miguel dos Campos sits at 9.8°S, 36.1°W, 13 m above sea level, in Brazil. The nearest listed city is Boca da Mata, 21 km away.

Topography around São Miguel dos Campos

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

Within 3 km, the terrain around São Miguel dos Campos has only modest variations in elevation — a maximum elevation change of 130 m around an average of 62 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 213 m; within 80 km, large variations in elevation — a maximum elevation change of 909 m.

The land around São Miguel dos Campos is covered by grassland (45%) within 3 km, cropland (41%) and grassland (38%) within 16 km, and grassland (45%) and water (27%) within 80 km.

3 km
130 m
16 km
213 m
80 km
909 m
treesshrubsgrasslandcroplandartificial surfaceswaterwetland
Nearby: Boca da Mata 21 km · Marechal Deodoro 23 km · Pilar 25 km · Campo Alegre 28 km · Atalaia 32 km · Teotônio Vilela 32 km · Satuba 38 km · Coruripe 39 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 Miguel dos Campos (-9.7811°, -36.0936°, elevation 13 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. Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).