Climate and average weather in Diamantino

In Diamantino, 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 January.

Best: early May to early August

Over the course of the year, the temperature in Diamantino typically varies from 18°C to 33°C, and is rarely below 14°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 Diamantino for warm-weather activities is from early May to early August.

Hottest
Sep
33°
Coldest
May
20°
Wettest
Jan
267 mm
Driest
Jul
4 mm
Rain / yr
1501 mm
182 wet days
Daylight
11.1–12.9 h
shortest–longest
Elevation
282 m
14.4°S
Clearest
Jul
26% cloud

Diamantino is human settlement in Diamantino municipality, Brazil.

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

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

Temperatures in Diamantino 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 20°C and high of 30°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
Mar3122
Apr3122
May3020
Jun3019
Jul3118
Aug3319
Sep3321
Oct3322
Nov3122
Dec3122

How hot and cold Diamantino 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, Diamantino feels like about 36°C (around October 16). About 275 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)
Jan34302222
Feb34302222
Mar35312222
Apr34312222
May32302020
Jun31301919
Jul30311818
Aug33331919
Sep35332121
Oct36332222
Nov35312222
Dec34312222

Average hourly temperature in Diamantino

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 20°C.

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

Diamantino 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°2672712.82.9
Feb30° / 22°24524.912.52.8
Mar31° / 22°22626.212.12.9
Apr31° / 22°1101711.73.9
May30° / 20°34611.35.5
Jun30° / 19°91.311.26.2
Jul31° / 18°40.811.26.2
Aug33° / 19°111.911.54.8
Sep33° / 21°488.511.93.6
Oct33° / 22°13018.912.33.0
Nov31° / 22°1932312.72.9
Dec31° / 22°2242612.82.9

Chance of rain

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

Diamantino gets about 1501 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 Oct 4 to Apr 19, peaking in February at about 89% 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 267 mm over about 27 wet days; July is the driest, with 4 mm.

0%10%20%30%40%50%60%70%80%90%100%JanFebMarAprMayJunJulAugSepOctNovDecwetterdrierwettermostly drysome rainoften wetvery wetFeb 6 · 89%Jul 1 · 2%
Rain on a day (%)Rain days
Jan8727
Feb8925
Mar8426
Apr5617
May206
Jun51
Jul21
Aug72
Sep299
Oct6019
Nov7723
Dec8426

Monthly rainfall

Over a full year, Diamantino collects about 1501 mm of rain across 182 wet days — roughly 125 mm in an average month.

It doesn’t fall evenly. January is the wettest month with 267 mm, while July is the driest at just 4 mm. The three wettest months alone bring about 49% of the year’s total.

050100150200250300JanFebMarAprMayJunJulAugSepOctNovDec26724522611034941148130193224
Rainfall (mm)Rain days
Jan26727
Feb24525
Mar22626
Apr11017
May346
Jun91
Jul41
Aug112
Sep489
Oct13019
Nov19323
Dec22426

Clouds and sunshine

ClearMostly clearPartly cloudyMostly cloudyOvercast

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

In Diamantino, 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 19 and lasts for 5.7 months, ending around October 8. 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 9 and lasts for 6.3 months, ending around April 18. The cloudiest month is February, when it is overcast or mostly cloudy 83% 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 11 · 87%Feb 13 · 16%clearmostly clearpartly cloudymostly cloudyovercastcloudierclearercloudier
Clearer (%)Cloudier (%)
Jan1882
Feb1783
Mar2476
Apr4357
May5842
Jun7723
Jul8614
Aug8416
Sep6931
Oct4159
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 18, brings about 12 h 54 min of light; the shortest, around June 19, only 11 h 06 min — a swing of roughly 1 h 48 min.

12 AM4 AM8 AM12 PM4 PM8 PM12 AMJanFebMarAprMayJunJulAugSepOctNovDec
Daylight (h)Sunrise (AM)Sunset (PM)
Jan12.86:327:18
Feb12.56:467:15
Mar12.16:526:58
Apr11.76:566:36
May11.37:026:22
Jun11.27:116:21
Jul11.27:156:28
Aug11.57:046:35
Sep11.96:426:38
Oct12.36:216:41
Nov12.76:116:51
Dec12.86:177:07

Sunny days

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

Diamantino averages about 10 sunny days a month — counting the days the sky stays clear or mostly clear — with a clear seasonal swing between 1 and 23 days.

The sunnier stretch runs 5.4 months, from around Apr 23 to Oct 2. The sunniest month is July, with roughly 23 sunny days (bright).

The greyest month is January, down near 1 sunny days — about 94% fewer than the July peak.

0510152025JanFebMarAprMayJunJulAugSepOctNovDecgreyersunniergreyergloomymixedbrightbrilliantJul 1323 daysJan 81 days
Sunny daysSky
Jan1Gloomy
Feb1Gloomy
Mar3Gloomy
Apr8Gloomy
May13Mixed
Jun19Bright
Jul23Bright
Aug22Bright
Sep15Mixed
Oct7Gloomy
Nov2Gloomy
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 Diamantino, how humid it feels changes dramatically over the year.

The more humid part of the year lasts 8.5 months, from around September 21 to June 7. 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 8 to September 20, and August is the most comfortable month — the air is dry or comfortable 51% of the time.

0%10%20%30%40%50%60%70%80%90%100%JanFebMarAprMayJunJulAugSepOctNovDecAug 1 · 60%Jan 1 · 0%muggyhumidoppressivecomfortabledryhumidcomfortablehumid
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
Jan0001972
Feb0002963
Mar0002953
Apr01316773
May261839350
Jun317462850
Jul1240381000
Aug1636311440
Sep6132331270
Oct01521721
Nov0018901
Dec0012961

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 Diamantino is steady company: average speeds sit near 7 km/hcalm — in every month of the year, with no meaningful windy or calm season.

051015JanFebMarAprMayJunJulAugSepOctNovDeccalmlight breezeJul 21 · 8 km/hMar 23 · 5 km/h
Wind speed (km/h)Feels
Jan7calm
Feb6calm
Mar5calm
Apr6calm
May7calm
Jun8calm
Jul8calm
Aug8calm
Sep8calm
Oct7calm
Nov7calm
Dec7calm

Hazard calendar for Diamantino

In seasonPeak

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

Diamantino'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 Diamantino

TravelBeach/poolTemperatureCloudsPrecipitation

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

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

0246810JanFebMarAprMayJunJulAugSepOctNovDecbest timetravel scoretemperaturecloudsprecipitationJul 9 · 6.4

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
Feb2.8poor
Mar2.9poor
Apr3.9fair
May5.5fair
Jun6.2good
Jul6.2good
Aug4.8fair
Sep3.6fair
Oct3.0poor
Nov2.9poor
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 Diamantino 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 · 8.8

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 Diamantino, 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.

Diamantino 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, Diamantino sees daytime highs around 33°C and nights near 21°C. Pack light clothes. Worth having: rain gear and sun protection. About 9 days see rain.

UV index (midday) in Diamantino 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 Diamantino peaks around January 22 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near September 15 at about 5 (high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highHighExtremeJan 22UV 15Sep 15UV 5
UV index (midday)Level
Jan15Extreme
Feb15Extreme
Mar14Extreme
Apr12Extreme
May9Very high
Jun8Very high
Jul8Very high
Aug10Very high
Sep5Moderate
Oct11Extreme
Nov13Extreme
Dec13Extreme

Average hourly UV index in Diamantino

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 8.5 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)
Jan8.57
Feb8.57
Mar86.5
Apr7.56
May74.5
Jun6.54
Jul6.54
Aug74.5
Sep5.50
Oct86
Nov8.56.5
Dec8.56.5

Air quality in Diamantino 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 Diamantino is worst in September — around 50 µg/m³ PM2.5 (poor), about 7.8× the cleanest month (July, 6 µg/m³).

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecGoodModeratePoorModerateGoodSep 1646 µg/m³Jul 107 µg/m³
PM2.5 (µg/m³)Level
Jan9Good
Feb9Good
Mar10Good
Apr9Good
May8Good
Jun7Good
Jul6Good
Aug20Moderate
Sep50Poor
Oct20Moderate
Nov11Good
Dec10Good
Almanac & agriculture

Growing season

Chance of a frost-free dayFrost-free year round

Diamantino 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. Diamantino banks about 5,844 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)
Jan506
Feb455
Mar510
Apr483
May465
Jun431
Jul436
Aug490
Sep518
Oct539
Nov501
Dec509

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.

Diamantino receives about 5.2 kWh/m² a day of solar energy — bright — and it stays remarkably steady, holding between 4.5 and 6.0 kWh/m² all year. For solar panels, output here is a flat line, not a seasonal wave.

01234567JanFebMarAprMayJunJulAugSepOctNovDecdimmoderatebrightintenseOct 156.0 kWhJun 14.5 kWh
Solar energy (kWh/m²)Level
Jan5.2Bright
Feb5.2Bright
Mar5.1Bright
Apr5.0Bright
May4.6Bright
Jun4.5Bright
Jul4.8Bright
Aug5.4Bright
Sep5.8Bright
Oct5.9Bright
Nov5.6Bright
Dec5.4Bright

Where is Diamantino?

Diamantino sits at 14.4°S, 56.4°W, 282 m above sea level, in Brazil. The nearest listed city is Nobres, 37 km away.

Topography around Diamantino

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

Within 3 km, the terrain around Diamantino has only modest variations in elevation — a maximum elevation change of 237 m around an average of 303 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 327 m; within 80 km, significant variations in elevation — a maximum elevation change of 542 m.

The land around Diamantino is covered by trees (49%) and grassland (32%) within 3 km, trees (47%), grassland (23%) and cropland (22%) within 16 km, and trees (45%), grassland (29%) and cropland (22%) within 80 km.

3 km
237 m
16 km
327 m
80 km
542 m
treesshrubsgrasslandcroplandartificial surfaces
Nearby: Nobres 37 km · Rosário Oeste 48 km · Nova Mutum 75 km · Nova Olímpia 100 km · Barra do Bugres 108 km · Tangará da Serra 114 km · Cuiabá 137 km · Chapada dos Guimarães 139 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 Diamantino (-14.4086°, -56.4461°, elevation 282 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).