Climate and average weather in Rolim de Moura do Guaporé

In Rolim de Moura do Guaporé, the weather is humid, sweltering, wet, and partly cloudy and remarkably steady, with daytime highs holding near sweltering levels all year. The wettest stretch peaks around January.

Best: mid May to mid August

Over the course of the year, the temperature in Rolim de Moura do Guaporé typically varies from 19°C to 33°C, and is rarely below 15°C or above 36°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 Rolim de Moura do Guaporé for warm-weather activities is from mid May to mid August.

Hottest
Sep
33°
Coldest
May
21°
Wettest
Jan
275 mm
Driest
Jul
12 mm
Rain / yr
1763 mm
204 wet days
Daylight
11.2–12.8 h
shortest–longest
Elevation
159 m
13.1°S
Clearest
Jul
28% cloud

Rolim de Moura do Guaporé is human settlement in Brazil.

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

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

Temperatures in Rolim de Moura do Guaporé 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 22°C; the coolest is May, with an average low of 21°C and high of 30°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)
Jan3023
Feb3023
Mar3023
Apr3022
May3021
Jun3020
Jul3119
Aug3220
Sep3322
Oct3223
Nov3123
Dec3123

How hot and cold Rolim de Moura do Guaporé 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, Rolim de Moura do Guaporé feels like about 37°C (around October 14). About 317 days a year carry some heat stress, peaking in October.

15°20°25°30°35°40°JanFebMarAprMayJunJulAugSepOctNovDecdangerous heat
Feels-like high (°C)Air high (°C)Feels-like low (°C)Air low (°C)
Jan35302323
Feb35302323
Mar35302323
Apr35302222
May32302121
Jun32302020
Jul32311919
Aug34322020
Sep36332222
Oct37322323
Nov36312323
Dec35312323

Average hourly temperature in Rolim de Moura do Guaporé

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 21°C.

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

Rolim de Moura do Guaporé 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° / 23°27527.812.72.7
Feb30° / 23°26925.312.42.8
Mar30° / 23°25627.412.12.8
Apr30° / 22°14319.711.73.6
May30° / 21°701211.44.9
Jun30° / 20°213.811.25.9
Jul31° / 19°122.311.35.8
Aug32° / 20°24411.64.6
Sep33° / 22°7111.111.93.4
Oct32° / 23°14819.912.32.9
Nov31° / 23°21223.412.62.8
Dec31° / 23°2622712.82.7

Chance of rain

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

Rolim de Moura do Guaporé gets about 1763 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 24, peaking in February at about 91% chance on a given day. The drier stretch runs the rest of the year, bottoming out around Jul 22.

January is the wettest month by volume, with 275 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 14 · 91%Jul 22 · 7%
Rain on a day (%)Rain days
Jan8928
Feb9025
Mar8827
Apr6620
May3812
Jun144
Jul82
Aug134
Sep3711
Oct6420
Nov7823
Dec8727

Monthly rainfall

Over a full year, Rolim de Moura do Guaporé collects about 1763 mm of rain across 204 wet days — roughly 147 mm in an average month.

It doesn’t fall evenly. January is the wettest month with 275 mm, while July is the driest at just 12 mm. The three wettest months alone bring about 46% of the year’s total.

050100150200250300JanFebMarAprMayJunJulAugSepOctNovDec2752692561437021122471148212262
Rainfall (mm)Rain days
Jan27528
Feb26925
Mar25627
Apr14320
May7012
Jun214
Jul122
Aug244
Sep7111
Oct14820
Nov21223
Dec26227

Clouds and sunshine

ClearMostly clearPartly cloudyMostly cloudyOvercast

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

In Rolim de Moura do Guaporé, 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 7 and lasts for 5.2 months, ending around October 12. The clearest month is July, when the sky is clear, mostly clear, or partly cloudy 84% of the time on average.

The cloudier part of the year begins around October 13 and lasts for 6.8 months, ending around May 6. The cloudiest month is February, when it is overcast or mostly cloudy 93% 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 24 · 86%Feb 10 · 6%clearmostly clearpartly cloudymostly cloudyovercastcloudierclearercloudier
Clearer (%)Cloudier (%)
Jan892
Feb793
Mar1189
Apr2872
May4753
Jun7525
Jul8416
Aug8119
Sep6238
Oct3466
Nov1585
Dec1189

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 10, 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)
Jan12.75:586:39
Feb12.46:116:37
Mar12.16:166:21
Apr11.76:186:01
May11.46:235:47
Jun11.26:325:46
Jul11.36:365:54
Aug11.66:266:00
Sep11.96:066:01
Oct12.35:456:03
Nov12.65:366:13
Dec12.85:426:28

Sunny days

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

Rolim de Moura do Guaporé 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 24 days.

The sunnier stretch runs 4.5 months, from around May 17 to Oct 1. The sunniest month is July, with roughly 23 sunny days (bright).

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

051015202530JanFebMarAprMayJunJulAugSepOctNovDecgreyersunniergreyergloomymixedbrightbrilliantJul 2424 daysFeb 100 days
Sunny daysSky
Jan1Gloomy
Feb0Gloomy
Mar1Gloomy
Apr4Gloomy
May9Mixed
Jun18Bright
Jul23Bright
Aug21Bright
Sep13Mixed
Oct5Gloomy
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 Rolim de Moura do Guaporé, how humid it feels changes noticeably over the year.

The more humid part of the year lasts 7.3 months, from around September 24 to May 2. 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 31 to September 23, and July is the most comfortable month — the air is dry or comfortable 17% of the time.

0%10%20%30%40%50%60%70%80%90%100%JanFebMarAprMayJunJulAugSepOctNovDecJul 26 · 21%Jan 1 · 0%miserableoppressivemuggyhumidcomfortabledryhumidcomfortablehumid
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
Jan00007623
Feb00017226
Mar00016434
Apr11375633
May237176110
Jun251240410
Jul792740170
Aug7112333251
Sep34823603
Oct00287613
Nov00146827
Dec00017623

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

0510JanFebMarAprMayJunJulAugSepOctNovDeccalmJul 25 · 7 km/hMar 12 · 5 km/h
Wind speed (km/h)Feels
Jan6calm
Feb6calm
Mar5calm
Apr5calm
May6calm
Jun6calm
Jul7calm
Aug7calm
Sep6calm
Oct6calm
Nov6calm
Dec6calm

Hazard calendar for Rolim de Moura do Guaporé

In seasonPeak

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

Rolim de Moura do Guaporé'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 Rolim de Moura do Guaporé

TravelBeach/poolTemperatureCloudsPrecipitation

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

Around early August, Rolim de Moura do Guaporé 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 Rolim de Moura do Guaporé 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 15 · 5.9

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
Jan2.7poor
Feb2.8poor
Mar2.8poor
Apr3.6fair
May4.9fair
Jun5.9good
Jul5.8good
Aug4.6fair
Sep3.4poor
Oct2.9poor
Nov2.8poor
Dec2.7poor

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 Rolim de Moura do Guaporé for hot-weather activities is from late May to early September, with a peak score in the third week of July.

024681012JanFebMarAprMayJunJulAugSepOctNovDecbest timebeach/pool scoretemperaturecloudsprecipitationJul 15 · 8.4

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 Rolim de Moura do Guaporé, 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.

Rolim de Moura do Guaporé 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, Rolim de Moura do Guaporé sees daytime highs around 33°C and nights near 22°C. Pack light clothes. Worth having: rain gear and sun protection. About 11 days see rain.

UV index (midday) in Rolim de Moura do Guaporé 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 Rolim de Moura do Guaporé peaks around January 20 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 20UV 15Sep 15UV 4
UV index (midday)Level
Jan16Extreme
Feb15Extreme
Mar14Extreme
Apr12Extreme
May10Very high
Jun8Very high
Jul8Very high
Aug8Very high
Sep3Moderate
Oct9Very high
Nov14Extreme
Dec14Extreme

Average hourly UV index in Rolim de Moura do Guaporé

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
May74.5
Jun6.54
Jul6.54
Aug6.54
Sep30
Oct7.55
Nov8.56.5
Dec8.56.5

Air quality in Rolim de Moura do Guaporé 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 Rolim de Moura do Guaporé is worst in September — around 72 µg/m³ PM2.5 (unhealthy), about 9.5× the cleanest month (July, 8 µg/m³).

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

020406080JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateUnhealthyPoorModerateSep 1869 µg/m³Jul 98 µg/m³
PM2.5 (µg/m³)Level
Jan11Good
Feb11Good
Mar11Good
Apr9Good
May8Good
Jun8Good
Jul8Good
Aug36Poor
Sep72Unhealthy
Oct50Poor
Nov26Moderate
Dec13Moderate
Almanac & agriculture

Growing season

Chance of a frost-free dayFrost-free year round

Rolim de Moura do Guaporé 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. Rolim de Moura do Guaporé banks about 5,965 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)
Jan518
Feb462
Mar514
Apr489
May474
Jun446
Jul457
Aug498
Sep525
Oct548
Nov512
Dec521

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.

Rolim de Moura do Guaporé receives about 5.0 kWh/m² a day of solar energy on average — bright — with a clear seasonal swing between 4.3 and 5.8 kWh/m².

The brighter stretch of the year lasts 5.4 months, from around Jul 24 to Jan 2. The brightest month is October, averaging about 5.7 kWh/m² (bright).

The dimmest month is May, down near 4.4 kWh/m² — roughly 24% less than the October peak.

01234567JanFebMarAprMayJunJulAugSepOctNovDecdimmerbrighterdimmoderatebrightintenseOct 35.8 kWhMay 244.3 kWh
Solar energy (kWh/m²)Level
Jan4.9Bright
Feb4.7Bright
Mar4.7Bright
Apr4.7Bright
May4.4Bright
Jun4.5Bright
Jul4.8Bright
Aug5.4Bright
Sep5.7Bright
Oct5.8Bright
Nov5.3Bright
Dec5.1Bright

Where is Rolim de Moura do Guaporé?

Rolim de Moura do Guaporé sits at 13.1°S, 62.3°W, 159 m above sea level, in Brazil. The nearest listed city is Alta Floresta d'Oeste, 129 km away.

Topography around Rolim de Moura do Guaporé

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Rolim de Moura do Guaporé.

Within 3 km, the terrain around Rolim de Moura do Guaporé has only modest variations in elevation — a maximum elevation change of 28 m around an average of 154 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 196 m; within 80 km, significant variations in elevation — a maximum elevation change of 523 m.

The land around Rolim de Moura do Guaporé is covered by trees (58%) and wetland (27%) within 3 km, trees (58%) and wetland (34%) within 16 km, and trees (69%) and wetland (21%) within 80 km.

3 km
28 m
16 km
196 m
80 km
523 m
treesgrasslandwaterwetland
Nearby: Alta Floresta d'Oeste 129 km · Rolim de Moura 151 km · Cerejeiras 159 km · São Miguel do Guaporé 161 km · São Francisco do Guaporé 181 km · Colorado do Oeste 188 km · Pimenta Bueno 196 km · Cacoal 204 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 Rolim de Moura do Guaporé (-13.0827°, -62.2773°, elevation 159 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).