Climate and average weather in Meruoca

In Meruoca, the weather is humid, 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 September

Over the course of the year, the temperature in Meruoca typically varies from 22°C to 34°C, and is rarely below 20°C or above 36°C. October is the hottest month of the year, while April is the coldest.

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

Hottest
Oct
34°
Coldest
Apr
23°
Wettest
Mar
372 mm
Driest
Sep
4 mm
Rain / yr
1562 mm
160 wet days
Daylight
11.8–12.2 h
shortest–longest
Elevation
668 m
3.5°S
Clearest
Sep
32% cloud

Meruoca 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 September.

Temperature through the year

Average highAverage lowShaded bands: 10–90% of days

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

Temperatures in Meruoca stay fairly even through the year, without a distinct hot or cool season. The warmest month is October, with an average high of 34°C and low of 23°C; the coolest is April, with an average low of 23°C and high of 30°C.

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

20°25°30°35°40°JanFebMarAprMayJunJulAugSepOctNovDec
Avg high (°C)Avg low (°C)
Jan3123
Feb3023
Mar3023
Apr3023
May3022
Jun3022
Jul3122
Aug3322
Sep3423
Oct3423
Nov3424
Dec3324

How hot and cold Meruoca 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, Meruoca feels like about 36°C (around November 11). Nearly every day a year carries some heat stress, peaking in November.

20°25°30°35°40°JanFebMarAprMayJunJulAugSepOctNovDec
Feels-like high (°C)Air high (°C)Feels-like low (°C)Air low (°C)
Jan35312323
Feb34302323
Mar33302323
Apr33302323
May33302222
Jun33302222
Jul33312222
Aug34332222
Sep35342323
Oct36342323
Nov36342324
Dec36332424

Average hourly temperature in Meruoca

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 34°C, and coldest before dawn in April, near 23°C.

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

Meruoca 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
Jan31° / 23°20521.712.23.1
Feb30° / 23°25523.912.13.0
Mar30° / 23°37228.5122.9
Apr30° / 23°37026.811.93.0
May30° / 22°17420.911.83.7
Jun30° / 22°611211.84.7
Jul31° / 22°326.711.85.0
Aug33° / 22°122.611.94.6
Sep34° / 23°41.3124.0
Oct34° / 23°8212.13.6
Nov34° / 24°123.212.23.5
Dec33° / 24°5810.512.23.4

Chance of rain

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

Meruoca gets about 1562 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 24 to Jun 9, peaking in March at about 95% chance on a given day. The drier stretch runs the rest of the year, bottoming out around Sep 19.

March is the wettest month by volume, with 372 mm over about 29 wet days; September is the driest, with 4 mm.

0%10%20%30%40%50%60%70%80%90%100%110%JanFebMarAprMayJunJulAugSepOctNovDecwetterdriermostly drysome rainoften wetvery wetMar 27 · 95%Sep 19 · 4%
Rain on a day (%)Rain days
Jan6922
Feb8424
Mar9229
Apr8927
May6721
Jun4012
Jul227
Aug83
Sep51
Oct72
Nov113
Dec3411

Monthly rainfall

Over a full year, Meruoca collects about 1562 mm of rain across 160 wet days — roughly 130 mm in an average month.

It doesn’t fall evenly. March is the wettest month with 372 mm, while September is the driest at just 4 mm. The three wettest months alone bring about 64% of the year’s total.

050100150200250300350400450JanFebMarAprMayJunJulAugSepOctNovDec205255372370174613212481258
Rainfall (mm)Rain days
Jan20522
Feb25524
Mar37229
Apr37027
May17421
Jun6112
Jul327
Aug123
Sep41
Oct82
Nov123
Dec5811

Clouds and sunshine

ClearMostly clearPartly cloudyMostly cloudyOvercast

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

In Meruoca, 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 30 and lasts for 6.6 months, ending around December 15. The clearest month is September, when the sky is clear, mostly clear, or partly cloudy 91% of the time on average.

The cloudier part of the year begins around December 16 and lasts for 5.4 months, ending around May 29. The cloudiest month is March, when it is overcast or mostly cloudy 84% 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 20 · 92%Mar 29 · 12%clearmostly clearpartly cloudymostly cloudyovercastcloudierclearer
Clearer (%)Cloudier (%)
Jan2872
Feb2278
Mar1684
Apr1783
May4159
Jun6436
Jul7426
Aug8713
Sep919
Oct8020
Nov6238
Dec5149

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, Meruoca barely changes through the year: days stay near 12 h 12 min of light in every season.

12 AM4 AM8 AM12 PM4 PM8 PM12 AMJanFebMarAprMayJunJulAugSepOctNovDec
Daylight (h)Sunrise (AM)Sunset (PM)
Jan12.25:465:57
Feb12.15:536:00
Mar12.05:515:52
Apr11.95:445:40
May11.85:435:33
Jun11.85:485:36
Jul11.85:535:42
Aug11.95:495:42
Sep12.05:375:36
Oct12.15:245:29
Nov12.25:225:32
Dec12.25:325:44

Sunny days

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

Meruoca 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 Jun 16 to Nov 22. The sunniest month is September, with roughly 21 sunny days (bright).

The greyest month is March, down near 1 sunny days — about 93% fewer than the September peak.

0510152025JanFebMarAprMayJunJulAugSepOctNovDecgreyersunniergreyergloomymixedbrightbrilliantSep 2421 daysMar 281 days
Sunny daysSky
Jan3Gloomy
Feb2Gloomy
Mar1Gloomy
Apr2Gloomy
May5Gloomy
Jun10Mixed
Jul14Mixed
Aug19Bright
Sep21Bright
Oct18Bright
Nov11Mixed
Dec8Gloomy

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.

Meruoca 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%JanFebMarAprMayJunJulAugSepOctNovDecoppressivemuggyhumid
Humid (%)Muggy (%)Oppressive (%)Miserable (%)
Jan022780
Feb06940
Mar02980
Apr00991
May06940
Jun144550
Jul1173150
Aug257220
Sep287110
Oct187930
Nov58780
Dec160400

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 Meruoca is typically calm, near 10 km/h, and varies moderately with the seasons.

The windier part of the year lasts 5.9 months, from around Jul 3 to Dec 30. The windiest month is October, averaging about 13 km/h (light breeze).

The calmer part of the year runs from around Dec 31 to Jul 2, with March the calmest month at about 6 km/h.

05101520JanFebMarAprMayJunJulAugSepOctNovDeccalmerwindiercalmlight breezeOct 7 · 13 km/hMar 30 · 6 km/h
Wind speed (km/h)Feels
Jan8calm
Feb7calm
Mar6calm
Apr6calm
May7calm
Jun9calm
Jul10calm
Aug12calm
Sep13light breeze
Oct13light breeze
Nov12light breeze
Dec11calm

Hazard calendar for Meruoca

In seasonPeak

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

Meruoca's monsoon runs January–May, 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 Meruoca

TravelBeach/poolTemperatureCloudsPrecipitation

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

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

0246810JanFebMarAprMayJunJulAugSepOctNovDecbest timetravel scoretemperaturecloudsprecipitationJul 13 · 5.0

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
Jan3.1poor
Feb3.0poor
Mar2.9poor
Apr3.0poor
May3.8fair
Jun4.7fair
Jul5.0fair
Aug4.6fair
Sep4.0fair
Oct3.6fair
Nov3.5fair
Dec3.4poor

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 Meruoca for hot-weather activities is from early June to mid December, with a peak score in the third week of August.

024681012JanFebMarAprMayJunJulAugSepOctNovDecbest timebeach/pool scoretemperaturecloudsprecipitationAug 20 · 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 Meruoca, 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.

Meruoca packs about the same all year — highs hold near 34°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, Meruoca sees daytime highs around 34°C and nights near 23°C. Pack light clothes and sun protection.

UV index (midday) in Meruoca 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 Meruoca peaks around March 16 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 22 at about 10 (extreme).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeMar 16UV 15Jun 22UV 10
UV index (midday)Level
Jan13Extreme
Feb14Extreme
Mar15Extreme
Apr14Extreme
May11Extreme
Jun10Very high
Jul10Extreme
Aug11Extreme
Sep12Extreme
Oct12Extreme
Nov12Extreme
Dec11Extreme

Average hourly UV index in Meruoca

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
Feb86.5
Mar86.5
Apr86.5
May7.55.5
Jun7.55
Jul7.55
Aug7.55.5
Sep7.55.5
Oct86
Nov86
Dec7.55.5

Air quality in Meruoca 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 Meruoca is worst in December — around 17 µg/m³ PM2.5 (moderate), about 3.0× the cleanest month (July, 6 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodModerateDec 1017 µg/m³Jul 216 µg/m³
PM2.5 (µg/m³)Level
Jan12Good
Feb13Moderate
Mar12Moderate
Apr12Good
May10Good
Jun7Good
Jul6Good
Aug6Good
Sep7Good
Oct10Good
Nov17Moderate
Dec17Moderate
Almanac & agriculture

Growing season

Chance of a frost-free dayFrost-free year round

Meruoca 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. Meruoca banks about 6,245 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)
Jan531
Feb461
Mar502
Apr481
May500
Jun479
Jul503
Aug533
Sep546
Oct581
Nov561
Dec565

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.

Meruoca receives about 5.6 kWh/m² a day of solar energy on average — bright — with a clear seasonal swing between 4.7 and 6.8 kWh/m².

The brighter stretch of the year lasts 5.1 months, from around Jul 25 to Dec 26. The brightest month is October, averaging about 6.8 kWh/m² (intense).

The dimmest month is April, down near 4.7 kWh/m² — roughly 30% less than the October peak.

012345678JanFebMarAprMayJunJulAugSepOctNovDecdimmerbrighterdimmoderatebrightintenseOct 26.8 kWhApr 234.7 kWh
Solar energy (kWh/m²)Level
Jan5.3Bright
Feb5.2Bright
Mar5.0Bright
Apr4.7Bright
May4.9Bright
Jun5.0Bright
Jul5.4Bright
Aug6.3Intense
Sep6.8Intense
Oct6.8Intense
Nov6.4Intense
Dec5.9Bright

Where is Meruoca?

Meruoca sits at 3.5°S, 40.5°W, 668 m above sea level, in Brazil. The nearest listed city is Massapê, 13 km away.

Topography around Meruoca

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

Within 3 km, the terrain around Meruoca has significant variations in elevation — a maximum elevation change of 521 m around an average of 729 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 956 m; within 80 km, large variations in elevation — a maximum elevation change of 1,010 m.

The land around Meruoca is covered by trees (96%) within 3 km, trees (54%) and shrubs (33%) within 16 km, and shrubs (49%), trees (27%) and grassland (22%) within 80 km.

3 km
521 m
16 km
956 m
80 km
1,010 m
treesshrubsgrasslandartificial surfaceswater
Nearby: Massapê 13 km · Sobral 20 km · Coreaú 22 km · Santana do Acaraú 28 km · Forquilha 36 km · Cariré 46 km · Frecheirinha 47 km · Morrinhos 50 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 Meruoca (-3.5417°, -40.455°, elevation 668 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).