Climate and average weather in Cerejeiras

In Cerejeiras, 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 May to mid August

Over the course of the year, the temperature in Cerejeiras typically varies from 18°C to 33°C, and is rarely below 14°C or above 36°C. September is the hottest month of the year, while February is the coldest.

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

Hottest
Sep
33°
Coldest
Feb
22°
Wettest
Jan
294 mm
Driest
Jul
12 mm
Rain / yr
1820 mm
207 wet days
Daylight
11.2–12.8 h
shortest–longest
Elevation
264 m
13.2°S
Clearest
Jul
28% cloud

Cerejeiras 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 May to mid August.

Temperature through the year

Average highAverage lowShaded bands: 10–90% of days

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

Temperatures in Cerejeiras stay fairly even through the year, without a distinct hot or cool season. The warmest month is September, with an average high of 33°C and low of 21°C; the coolest is February, with an average low of 22°C and high of 29°C.

Days typically run about 9°C warmer than nights, with the widest day–night swing (around 13°C) in August.

10°15°20°25°30°35°40°JanFebMarAprMayJunJulAugSepOctNovDec
Avg high (°C)Avg low (°C)
Jan3022
Feb2922
Mar3022
Apr3022
May2920
Jun3019
Jul3118
Aug3219
Sep3321
Oct3222
Nov3122
Dec3022

How hot and cold Cerejeiras 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, Cerejeiras feels like about 36°C (around October 10). About 271 days a year carry some heat stress, peaking in October.

15°20°25°30°35°40°JanFebMarAprMayJunJulAugSepOctNovDec
Feels-like high (°C)Air high (°C)Feels-like low (°C)Air low (°C)
Jan33302222
Feb33292222
Mar33302222
Apr33302222
May32292020
Jun31301919
Jul31311818
Aug33321919
Sep35332121
Oct36322222
Nov34312222
Dec33302222

Average hourly temperature in Cerejeiras

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 September afternoons, near 33°C, and coldest before dawn in February, near 22°C.

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

Cerejeiras 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° / 22°2942812.72.9
Feb29° / 22°28425.812.42.9
Mar30° / 22°25627.312.13.0
Apr30° / 22°14320.311.73.7
May29° / 20°6911.411.45.2
Jun30° / 19°173.211.26.1
Jul31° / 18°122.111.36.0
Aug32° / 19°244.211.64.7
Sep33° / 21°711211.93.6
Oct32° / 22°15720.812.33.0
Nov31° / 22°22524.212.63.0
Dec30° / 22°26927.212.83.0

Chance of rain

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

Cerejeiras gets about 1820 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 6.7 months, from around Oct 3 to Apr 23, peaking in February at about 92% chance on a given day. The drier stretch runs the rest of the year, bottoming out around Jul 19.

January is the wettest month by volume, with 294 mm over about 28 wet days; July is the driest, with 12 mm.

0%10%20%30%40%50%60%70%80%90%100%JanFebMarAprMayJunJulAugSepOctNovDecwetterdrierwettermostly drysome rainoften wetvery wetFeb 7 · 92%Jul 19 · 6%
Rain on a day (%)Rain days
Jan9028
Feb9226
Mar8827
Apr6720
May3711
Jun123
Jul72
Aug144
Sep4012
Oct6621
Nov8124
Dec8827

Monthly rainfall

Over a full year, Cerejeiras collects about 1820 mm of rain across 207 wet days — roughly 152 mm in an average month.

It doesn’t fall evenly. January is the wettest month with 294 mm, while July is the driest at just 12 mm. The three wettest months alone bring about 47% of the year’s total.

050100150200250300350JanFebMarAprMayJunJulAugSepOctNovDec2942842561436917122471157225269
Rainfall (mm)Rain days
Jan29428
Feb28426
Mar25627
Apr14320
May6911
Jun173
Jul122
Aug244
Sep7112
Oct15721
Nov22524
Dec26927

Clouds and sunshine

ClearMostly clearPartly cloudyMostly cloudyOvercast

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

In Cerejeiras, 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 April 26 and lasts for 5.6 months, ending around October 11. The clearest month is July, when the sky is clear, mostly clear, or partly cloudy 86% of the time on average.

The cloudier part of the year begins around October 12 and lasts for 6.4 months, ending around April 25. The cloudiest month is February, when it is overcast or mostly cloudy 92% 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%JanFebMarAprMayJunJulAugSepOctNovDecJul 23 · 87%Feb 17 · 7%clearmostly clearpartly cloudymostly cloudyovercastcloudierclearercloudier
Clearer (%)Cloudier (%)
Jan991
Feb892
Mar1387
Apr3268
May5050
Jun7624
Jul8614
Aug8218
Sep6337
Oct3664
Nov1684
Dec1288

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

12 AM4 AM8 AM12 PM4 PM8 PM12 AMJanFebMarAprMayJunJulAugSepOctNovDec
Daylight (h)Sunrise (AM)Sunset (PM)
Jan12.75:526:34
Feb12.46:056:31
Mar12.16:106:16
Apr11.76:125:55
May11.46:185:41
Jun11.26:275:40
Jul11.36:305:48
Aug11.66:215:54
Sep11.96:005:55
Oct12.35:395:57
Nov12.65:306:07
Dec12.85:366:23

Sunny days

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

Cerejeiras averages about 8 sunny days a month — counting the days the sky stays clear or mostly clear — with a clear seasonal swing between 0 and 23 days.

The sunnier stretch runs 4.6 months, from around May 13 to Sep 30. The sunniest month is July, with roughly 22 sunny days (bright).

The greyest month is January, down near 0 sunny days — about 98% fewer than the July peak.

051015202530JanFebMarAprMayJunJulAugSepOctNovDecgreyersunniergreyergloomymixedbrightbrilliantJul 2323 daysJan 110 days
Sunny daysSky
Jan0Gloomy
Feb0Gloomy
Mar1Gloomy
Apr4Gloomy
May10Mixed
Jun18Bright
Jul23Bright
Aug21Bright
Sep13Mixed
Oct6Gloomy
Nov2Gloomy
Dec1Gloomy

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 Cerejeiras, how humid it feels changes dramatically over the year.

The more humid part of the year lasts 8.8 months, from around September 18 to June 13. The muggiest month is January, when the air feels humid, muggy or worse about 100% of the time.

The most comfortable stretch runs from around June 14 to September 17, and August is the most comfortable month — the air is dry or comfortable 29% of the time.

0%10%20%30%40%50%60%70%80%90%100%JanFebMarAprMayJunJulAugSepOctNovDecAug 2 · 34%Jan 1 · 0%muggyoppressivehumidcomfortabledryhumidcomfortablehumid
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
Jan0001964
Feb0001935
Mar0002926
Apr1138825
May24923611
Jun252545230
Jul717412960
Aug9203126140
Sep351231480
Oct01210861
Nov0015903
Dec0011962

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 Cerejeiras is steady company: average speeds sit near 6 km/hcalm — in every month of the year, with no meaningful windy or calm season.

051015JanFebMarAprMayJunJulAugSepOctNovDeccalmlight breezeJul 27 · 7 km/hMar 14 · 5 km/h
Wind speed (km/h)Feels
Jan6calm
Feb6calm
Mar5calm
Apr5calm
May6calm
Jun6calm
Jul7calm
Aug7calm
Sep6calm
Oct6calm
Nov6calm
Dec6calm

Hazard calendar for Cerejeiras

In seasonPeak

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

Cerejeiras's monsoon runs October–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 Cerejeiras

TravelBeach/poolTemperatureCloudsPrecipitation

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

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

0246810JanFebMarAprMayJunJulAugSepOctNovDecbest timetravel scoretemperaturecloudsprecipitationJun 21 · 6.2

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
Jan2.9poor
Feb2.9poor
Mar3.0poor
Apr3.8fair
May5.2fair
Jun6.1good
Jul6.0good
Aug4.7fair
Sep3.6fair
Oct3.0poor
Nov3.0poor
Dec3.0poor

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 Cerejeiras for hot-weather activities is from late May to early September, with a peak score in the second week of July.

024681012JanFebMarAprMayJunJulAugSepOctNovDecbest timebeach/pool scoretemperaturecloudsprecipitationJul 13 · 8.6

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 Cerejeiras, 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.

Cerejeiras packs about the same all year — highs hold near 33°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 September, Cerejeiras sees daytime highs around 33°C and nights near 21°C. Pack light clothes. Worth having: rain gear and sun protection. About 12 days see rain.

UV index (midday) in Cerejeiras 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 Cerejeiras peaks around January 21 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near September 15 at about 4 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 11 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highModerateExtremeJan 21UV 15Sep 15UV 4
UV index (midday)Level
Jan16Extreme
Feb15Extreme
Mar15Extreme
Apr13Extreme
May10Very high
Jun9Very high
Jul8Very high
Aug9Very high
Sep3Moderate
Oct12Extreme
Nov13Extreme
Dec14Extreme

Average hourly UV index in Cerejeiras

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
Mar8.56.5
Apr86
May75
Jun6.54
Jul6.54
Aug6.54
Sep3.50
Oct86
Nov8.56.5
Dec8.57

Air quality in Cerejeiras 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 Cerejeiras is worst in September — around 65 µg/m³ PM2.5 (unhealthy), about 7.7× the cleanest month (May, 9 µg/m³).

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

020406080JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateModerateSep 1662 µg/m³May 129 µg/m³
PM2.5 (µg/m³)Level
Jan11Good
Feb11Good
Mar11Good
Apr9Good
May9Good
Jun11Good
Jul9Good
Aug34Moderate
Sep65Unhealthy
Oct37Poor
Nov20Moderate
Dec13Moderate
Almanac & agriculture

Growing season

Chance of a frost-free dayFrost-free year round

Cerejeiras 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. Cerejeiras banks about 5,747 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)
Jan492
Feb440
Mar494
Apr471
May458
Jun432
Jul445
Aug489
Sep510
Oct528
Nov491
Dec497

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.

Cerejeiras receives about 5.1 kWh/m² a day of solar energy — bright — and it stays remarkably steady, holding between 4.4 and 5.9 kWh/m² all year. For solar panels, output here is a flat line, not a seasonal wave.

01234567JanFebMarAprMayJunJulAugSepOctNovDecdimmoderatebrightintenseOct 85.9 kWhMay 264.4 kWh
Solar energy (kWh/m²)Level
Jan5.0Bright
Feb4.8Bright
Mar4.9Bright
Apr4.8Bright
May4.5Bright
Jun4.5Bright
Jul4.9Bright
Aug5.4Bright
Sep5.7Bright
Oct5.8Bright
Nov5.4Bright
Dec5.2Bright

Where is Cerejeiras?

Cerejeiras sits at 13.2°S, 60.8°W, 264 m above sea level, in Brazil. The nearest listed city is Colorado do Oeste, 30 km away.

Topography around Cerejeiras

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

Within 3 km, the terrain around Cerejeiras has only modest variations in elevation — a maximum elevation change of 102 m around an average of 257 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 374 m; within 80 km, significant variations in elevation — a maximum elevation change of 498 m.

The land around Cerejeiras is covered by grassland (48%) and trees (23%) within 3 km, grassland (46%), cropland (28%) and trees (24%) within 16 km, and trees (56%) and grassland (31%) within 80 km.

3 km
102 m
16 km
374 m
80 km
498 m
treesshrubsgrasslandcroplandartificial surfaceswetland
Nearby: Colorado do Oeste 30 km · Vilhena 88 km · Comodoro 123 km · Rolim de Moura do Guaporé 159 km · Pimenta Bueno 174 km · Alta Floresta d'Oeste 184 km · Espigão dOeste 186 km · Rolim de Moura 188 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 Cerejeiras (-13.1889°, -60.8122°, elevation 264 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).