Climate and average weather in Jaciara

In Jaciara, the weather is hot, wet, and mostly clear and remarkably steady, with daytime highs holding near hot levels all year. The wettest stretch peaks around December.

Best: early May to early August

Over the course of the year, the temperature in Jaciara typically varies from 18°C to 33°C, and is rarely below 13°C or above 37°C. September is the hottest month of the year, while May is the coldest.

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

Hottest
Sep
33°
Coldest
May
19°
Wettest
Dec
307 mm
Driest
Jul
7 mm
Rain / yr
1815 mm
183 wet days
Daylight
11.1–13.0 h
shortest–longest
Elevation
362 m
16.0°S
Clearest
Jul
27% cloud

Jaciara is settlement in Brazil.

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

Jaciara 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 early May to early August.

Temperature through the year

Average highAverage lowShaded bands: 10–90% of days

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

Temperatures in Jaciara 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 May, with an average low of 19°C and high of 29°C.

Days typically run about 10°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
Feb3022
Mar3022
Apr3021
May2919
Jun2918
Jul3018
Aug3219
Sep3321
Oct3222
Nov3122
Dec3022

How hot and cold Jaciara 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, Jaciara feels like about 35°C (around October 14). About 251 days a year carry some heat stress, peaking in October.

15°20°25°30°35°JanFebMarAprMayJunJulAugSepOctNovDec
Feels-like high (°C)Air high (°C)Feels-like low (°C)Air low (°C)
Jan33302222
Feb33302222
Mar34302222
Apr33302121
May30291919
Jun29291818
Jul30301718
Aug32321919
Sep33332121
Oct34322222
Nov34312222
Dec33302222

Average hourly temperature in Jaciara

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 May, near 19°C.

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

Jaciara 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°30026.312.83.0
Feb30° / 22°26624.412.53.0
Mar30° / 22°25325.412.13.1
Apr30° / 21°1151511.74.3
May29° / 19°436.911.35.9
Jun29° / 18°111.611.16.7
Jul30° / 18°70.911.16.7
Aug32° / 19°152.611.55.2
Sep33° / 21°709.511.93.8
Oct32° / 22°18220.312.43.1
Nov31° / 22°24723.112.73.1
Dec30° / 22°30727.312.92.9

Chance of rain

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

Jaciara gets about 1815 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 6.5 months, from around Sep 29 to Apr 15, peaking in December at about 88% chance on a given day. The drier stretch runs the rest of the year, bottoming out around Jul 4.

December is the wettest month by volume, with 307 mm over about 27 wet days; July is the driest, with 7 mm.

0%10%20%30%40%50%60%70%80%90%100%JanFebMarAprMayJunJulAugSepOctNovDecwetterdrierwettermostly drysome rainoften wetvery wetDec 9 · 88%Jul 4 · 3%
Rain on a day (%)Rain days
Jan8526
Feb8624
Mar8225
Apr5015
May227
Jun62
Jul31
Aug93
Sep3210
Oct6420
Nov7823
Dec8727

Monthly rainfall

Over a full year, Jaciara collects about 1815 mm of rain across 183 wet days — roughly 151 mm in an average month.

It doesn’t fall evenly. December is the wettest month with 307 mm, while July is the driest at just 7 mm. The three wettest months alone bring about 48% of the year’s total.

050100150200250300350JanFebMarAprMayJunJulAugSepOctNovDec300266253115431171570182247307
Rainfall (mm)Rain days
Jan30026
Feb26624
Mar25325
Apr11515
May437
Jun112
Jul71
Aug153
Sep7010
Oct18220
Nov24723
Dec30727

Clouds and sunshine

ClearMostly clearPartly cloudyMostly cloudyOvercast

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

In Jaciara, 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 15 and lasts for 5.8 months, ending around October 7. The clearest month is July, when the sky is clear, mostly clear, or partly cloudy 83% of the time on average.

The cloudier part of the year begins around October 8 and lasts for 6.2 months, ending around April 14. The cloudiest month is December, when it is overcast or mostly cloudy 82% 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 16 · 84%Dec 8 · 16%clearmostly clearpartly cloudymostly cloudyovercastcloudierclearercloudier
Clearer (%)Cloudier (%)
Jan1981
Feb2080
Mar2773
Apr4951
May6238
Jun7723
Jul8317
Aug8317
Sep6832
Oct4060
Nov2377
Dec1882

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 December 22, brings about 13 hours of light; the shortest, around May 28, only 11 h 06 min — a swing of roughly 1 h 54 min.

12 AM4 AM8 AM12 PM4 PM8 PM12 AMJanFebMarAprMayJunJulAugSepOctNovDec
Daylight (h)Sunrise (AM)Sunset (PM)
Jan12.86:247:15
Feb12.56:387:10
Mar12.16:466:53
Apr11.76:516:29
May11.36:586:14
Jun11.17:086:12
Jul11.17:116:20
Aug11.57:006:28
Sep11.96:376:32
Oct12.46:146:36
Nov12.76:026:48
Dec12.96:087:04

Sunny days

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

Jaciara averages about 10 sunny days a month — counting the days the sky stays clear or mostly clear — with a clear seasonal swing between 2 and 23 days.

The sunnier stretch runs 5.4 months, from around Apr 19 to Sep 30. The sunniest month is July, with roughly 22 sunny days (bright).

The greyest month is December, down near 2 sunny days — about 91% fewer than the July peak.

0510152025JanFebMarAprMayJunJulAugSepOctNovDecgreyersunniergreyergloomymixedbrightbrilliantJul 2723 daysDec 52 days
Sunny daysSky
Jan2Gloomy
Feb2Gloomy
Mar3Gloomy
Apr9Mixed
May14Mixed
Jun19Bright
Jul23Bright
Aug22Bright
Sep15Mixed
Oct7Gloomy
Nov3Gloomy
Dec2Gloomy

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

The more humid part of the year lasts 8.1 months, from around September 22 to May 27. 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 May 28 to September 21, and August is the most comfortable month — the air is dry or comfortable 68% of the time.

0%10%20%30%40%50%60%70%80%90%100%JanFebMarAprMayJunJulAugSepOctNovDecAug 1 · 76%Jan 1 · 0%humidmuggyoppressivecomfortabledryhumidcomfortablehumid
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
Jan0001486
Feb0001189
Mar000991
Apr1273358
May410284612
Jun53443171
Jul22492640
Aug274121100
Sep1119253410
Oct0374346
Nov0022375
Dec0011287

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

051015JanFebMarAprMayJunJulAugSepOctNovDeccalmlight breezeAug 10 · 8 km/hMar 16 · 5 km/h
Wind speed (km/h)Feels
Jan6calm
Feb5calm
Mar5calm
Apr5calm
May6calm
Jun7calm
Jul7calm
Aug8calm
Sep7calm
Oct6calm
Nov6calm
Dec6calm

Hazard calendar for Jaciara

In seasonPeak

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

Jaciara's monsoon runs October–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 Jaciara

TravelBeach/poolTemperatureCloudsPrecipitation

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

Around mid May, Jaciara 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 Jaciara for general outdoor tourist activities is from early May to mid August, with a peak score in the second week of July.

0246810JanFebMarAprMayJunJulAugSepOctNovDecbest timetravel scoretemperaturecloudsprecipitationJul 8 · 6.9

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
Jan3.0poor
Feb3.0poor
Mar3.1poor
Apr4.3fair
May5.8good
Jun6.7good
Jul6.7good
Aug5.2fair
Sep3.8fair
Oct3.1poor
Nov3.1poor
Dec2.9poor

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

024681012JanFebMarAprMayJunJulAugSepOctNovDecbest timebeach/pool scoretemperaturecloudsprecipitationJul 10 · 9.0

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 Jaciara, 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.

Jaciara 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, Jaciara sees daytime highs around 33°C and nights near 21°C. Pack light clothes. Worth having: rain gear and sun protection. About 10 days see rain.

UV index (midday) in Jaciara 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 Jaciara peaks around January 21 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 21 at about 8 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highExtremeJan 21UV 15Jun 21UV 8
UV index (midday)Level
Jan15Extreme
Feb15Extreme
Mar14Extreme
Apr12Extreme
May9Very high
Jun8Very high
Jul8Very high
Aug9Very high
Sep8Very high
Oct11Extreme
Nov13Extreme
Dec13Extreme

Average hourly UV index in Jaciara

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
Feb8.56.5
Mar86.5
Apr7.55.5
May6.54
Jun63.5
Jul6.53.5
Aug74.5
Sep74
Oct85.5
Nov8.56.5
Dec8.56.5

Air quality in Jaciara 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 Jaciara is worst in September — around 32 µg/m³ PM2.5 (moderate), about 7.1× the cleanest month (July, 5 µg/m³).

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodSep 1630 µg/m³Jul 105 µg/m³
PM2.5 (µg/m³)Level
Jan8Good
Feb8Good
Mar7Good
Apr6Good
May6Good
Jun6Good
Jul5Good
Aug19Moderate
Sep32Moderate
Oct17Moderate
Nov9Good
Dec8Good
Almanac & agriculture

Growing season

Chance of a frost-free dayFrost-free year round

Jaciara 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. Jaciara banks about 5,687 degree days a year, and the running total — which growers use to time plantings and predict maturity — climbs fastest around September.

02,0004,0006,000JanFebMarAprMayJunJulAugSepOctNovDec
Growing degree days (°C·days)
Jan496
Feb449
Mar500
Apr472
May445
Jun412
Jul421
Aug477
Sep509
Oct525
Nov487
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.

Jaciara receives about 5.3 kWh/m² a day of solar energy on average — bright — with a clear seasonal swing between 4.4 and 6.0 kWh/m².

The brighter stretch of the year lasts 7.1 months, from around Aug 14 to Mar 17. The brightest month is October, averaging about 6.0 kWh/m² (bright).

The dimmest month is June, down near 4.5 kWh/m² — roughly 26% less than the October peak.

01234567JanFebMarAprMayJunJulAugSepOctNovDecbrighterdimmerbrighterdimmoderatebrightintenseOct 156.0 kWhJun 44.4 kWh
Solar energy (kWh/m²)Level
Jan5.5Bright
Feb5.5Bright
Mar5.4Bright
Apr5.2Bright
May4.6Bright
Jun4.4Bright
Jul4.7Bright
Aug5.4Bright
Sep5.8Bright
Oct6.0Intense
Nov5.8Bright
Dec5.6Bright

Where is Jaciara?

Jaciara sits at 16.0°S, 55.0°W, 362 m above sea level, in Brazil. The nearest listed city is Campo Verde, 51 km away.

Topography around Jaciara

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

Within 3 km, the terrain around Jaciara has only modest variations in elevation — a maximum elevation change of 169 m around an average of 299 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 377 m; within 80 km, large variations in elevation — a maximum elevation change of 770 m.

The land around Jaciara is covered by grassland (41%), trees (37%) and artificial surfaces (20%) within 3 km, grassland (54%) and trees (33%) within 16 km, and trees (37%), grassland (35%) and cropland (23%) within 80 km.

3 km
169 m
16 km
377 m
80 km
770 m
treesshrubsgrasslandcroplandartificial surfaceswaterwetland
Nearby: Campo Verde 51 km · Poxoréu 64 km · Rondonópolis 66 km · Pedra Preta 90 km · Chapada dos Guimarães 101 km · Lucas 111 km · Santo Antônio do Leverger 119 km · Cuiabá 128 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 Jaciara (-15.9653°, -54.9683°, elevation 362 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).