Climate and average weather in Rurópolis

In Rurópolis, the weather is muggy, sweltering, wet, and partly cloudy and remarkably steady, with daytime highs holding near sweltering levels all year. The wettest stretch peaks around March.

Best: late May to late August

Over the course of the year, the temperature in Rurópolis typically varies from 22°C to 34°C, and is rarely below 20°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 Rurópolis for warm-weather activities is from late May to late August.

Hottest
Sep
34°
Coldest
Feb
22°
Wettest
Mar
336 mm
Driest
Aug
42 mm
Rain / yr
2137 mm
251 wet days
Daylight
11.8–12.2 h
shortest–longest
Elevation
142 m
4.1°S
Clearest
Aug
49% cloud

Rurópolis 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 August.

Temperature through the year

Average highAverage lowShaded bands: 10–90% of days

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

Temperatures in Rurópolis stay fairly even through the year, without a distinct hot or cool season. The warmest month is September, with an average high of 34°C and low of 23°C; the coolest is February, with an average low of 22°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 August.

20°25°30°35°40°JanFebMarAprMayJunJulAugSepOctNovDec
Avg high (°C)Avg low (°C)
Jan3022
Feb3022
Mar3022
Apr3022
May3022
Jun3122
Jul3222
Aug3422
Sep3423
Oct3323
Nov3223
Dec3123

How hot and cold Rurópolis 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, Rurópolis feels like about 38°C (around September 23). Nearly every day a year carries some heat stress, peaking in September.

20°25°30°35°40°JanFebMarAprMayJunJulAugSepOctNovDecdangerous heat
Feels-like high (°C)Air high (°C)Feels-like low (°C)Air low (°C)
Jan34302222
Feb34302222
Mar34302222
Apr34302222
May35302222
Jun35312222
Jul36322222
Aug37342222
Sep38342323
Oct38332323
Nov37322323
Dec35312223

Average hourly temperature in Rurópolis

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 34°C, and coldest before dawn in February, near 22°C.

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

Rurópolis 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°28828.312.22.8
Feb30° / 22°28826.112.12.8
Mar30° / 22°33629.4122.7
Apr30° / 22°29528.811.92.6
May30° / 22°20926.911.82.9
Jun31° / 22°8016.111.83.8
Jul32° / 22°5611.411.83.9
Aug34° / 22°429.811.93.3
Sep34° / 23°7012.7122.9
Oct33° / 23°1111712.12.8
Nov32° / 23°15820.512.22.8
Dec31° / 23°20424.312.22.8

Chance of rain

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

Rurópolis gets about 2137 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 6.0 months, from around Dec 2 to Jun 1, peaking in April at about 97% chance on a given day. The drier stretch runs the rest of the year, bottoming out around Aug 1.

March is the wettest month by volume, with 336 mm over about 29 wet days; August is the driest, with 42 mm.

0%10%20%30%40%50%60%70%80%90%100%110%JanFebMarAprMayJunJulAugSepOctNovDecwetterdrierwettermostly drysome rainoften wetvery wetApr 8 · 97%Aug 1 · 28%
Rain on a day (%)Rain days
Jan9128
Feb9326
Mar9529
Apr9629
May8527
Jun5516
Jul3711
Aug3110
Sep4213
Oct5517
Nov6821
Dec7924

Monthly rainfall

Over a full year, Rurópolis collects about 2137 mm of rain across 251 wet days — roughly 178 mm in an average month.

It doesn’t fall evenly. March is the wettest month with 336 mm, while August is the driest at just 42 mm. The three wettest months alone bring about 43% of the year’s total.

050100150200250300350400JanFebMarAprMayJunJulAugSepOctNovDec28828833629520980564270111158204
Rainfall (mm)Rain days
Jan28828
Feb28826
Mar33629
Apr29529
May20927
Jun8016
Jul5611
Aug4210
Sep7013
Oct11117
Nov15821
Dec20424

Clouds and sunshine

ClearMostly clearPartly cloudyMostly cloudyOvercast

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

In Rurópolis, 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 28 and lasts for 5.0 months, ending around October 26. The clearest month is August, when the sky is clear, mostly clear, or partly cloudy 67% of the time on average.

The cloudier part of the year begins around October 27 and lasts for 7.0 months, ending around May 27. The cloudiest month is March, when it is overcast or mostly cloudy 97% 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 30 · 71%Mar 9 · 3%clearmostly clearpartly cloudymostly cloudyovercastcloudierclearercloudier
Clearer (%)Cloudier (%)
Jan694
Feb496
Mar397
Apr496
May1783
Jun4951
Jul6535
Aug6733
Sep5545
Oct3664
Nov2080
Dec1585

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, Rurópolis 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)
Jan12.26:436:55
Feb12.16:506:58
Mar12.06:486:50
Apr11.96:436:37
May11.86:416:30
Jun11.86:476:33
Jul11.86:526:39
Aug11.96:486:40
Sep12.06:356:33
Oct12.16:226:27
Nov12.26:196:31
Dec12.26:296:43

Sunny days

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

Rurópolis averages about 4 sunny days a month — counting the days the sky stays clear or mostly clear — with a clear seasonal swing between 0 and 14 days.

The sunnier stretch runs 4.8 months, from around May 31 to Oct 22. The sunniest month is July, with roughly 12 sunny days (mixed).

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

05101520JanFebMarAprMayJunJulAugSepOctNovDecgreyersunniergreyergloomymixedbrightJul 3014 daysFeb 270 days
Sunny daysSky
Jan0Gloomy
Feb0Gloomy
Mar0Gloomy
Apr0Gloomy
May2Gloomy
Jun7Gloomy
Jul12Mixed
Aug13Mixed
Sep9Mixed
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.

Rurópolis 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%JanFebMarAprMayJunJulAugSepOctNovDecmiserableoppressivemuggy
Humid (%)Muggy (%)Oppressive (%)Miserable (%)
Jan00937
Feb00928
Mar009010
Apr008317
May008218
Jun06904
Jul321760
Aug430661
Sep017822
Oct06868
Nov018513
Dec00928

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

0510JanFebMarAprMayJunJulAugSepOctNovDeccalmAug 20 · 6 km/hApr 29 · 5 km/h
Wind speed (km/h)Feels
Jan5calm
Feb6calm
Mar5calm
Apr5calm
May5calm
Jun6calm
Jul6calm
Aug6calm
Sep6calm
Oct6calm
Nov5calm
Dec6calm

Hazard calendar for Rurópolis

In seasonPeak

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

Rurópolis's rainy season runs November–May, when most of the year's rain falls.

Rainy season
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Best time to visit Rurópolis

TravelBeach/poolTemperatureCloudsPrecipitation

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

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

0246810JanFebMarAprMayJunJulAugSepOctNovDecbest timetravel scoretemperaturecloudsprecipitationJun 30 · 4.0

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
Jan2.7poor
Feb2.8poor
Mar2.7poor
Apr2.6poor
May2.9poor
Jun3.8fair
Jul3.9fair
Aug3.3poor
Sep2.9poor
Oct2.8poor
Nov2.8poor
Dec2.8poor

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 Rurópolis for hot-weather activities is from early June to early October, with a peak score in the last week of July.

024681012JanFebMarAprMayJunJulAugSepOctNovDecbest timebeach/pool scoretemperaturecloudsprecipitationJul 30 · 6.6

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 Rurópolis, 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.

Rurópolis packs about the same all year — highs hold near 34°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, Rurópolis sees daytime highs around 34°C and nights near 23°C. Pack light clothes. Worth having: rain gear and sun protection. About 13 days see rain.

UV index (midday) in Rurópolis 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 Rurópolis peaks around February 21 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near November 17 at about 10 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highExtremeVery highExtremeFeb 21UV 15Nov 17UV 10
UV index (midday)Level
Jan13Extreme
Feb16Extreme
Mar15Extreme
Apr14Extreme
May11Extreme
Jun10Very high
Jul10Very high
Aug10Extreme
Sep11Extreme
Oct11Extreme
Nov9Very high
Dec11Extreme

Average hourly UV index in Rurópolis

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 February the burn window is concentrated in the middle of the day: about 8.5 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)
Jan86.5
Feb8.56.5
Mar8.56.5
Apr86.5
May7.55.5
Jun75
Jul7.55
Aug7.55.5
Sep7.55.5
Oct7.55.5
Nov7.55
Dec7.55.5

Air quality in Rurópolis 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 Rurópolis is worst in November — around 62 µg/m³ PM2.5 (unhealthy), about 7.2× the cleanest month (June, 9 µg/m³).

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

020406080JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodModeratePoorUnhealthyNov 962 µg/m³Jun 179 µg/m³
PM2.5 (µg/m³)Level
Jan15Moderate
Feb14Moderate
Mar13Moderate
Apr12Moderate
May10Good
Jun9Good
Jul10Good
Aug19Moderate
Sep38Poor
Oct62Unhealthy
Nov62Unhealthy
Dec27Moderate
Almanac & agriculture

Growing season

Chance of a frost-free dayFrost-free year round

Rurópolis 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. Rurópolis banks about 6,136 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)
Jan500
Feb446
Mar495
Apr483
May501
Jun488
Jul520
Aug554
Sep549
Oct557
Nov522
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.

Rurópolis receives about 4.8 kWh/m² a day of solar energy on average — bright — with a clear seasonal swing between 4.1 and 5.9 kWh/m².

The brighter stretch of the year lasts 5.2 months, from around Jul 8 to Dec 12. The brightest month is September, averaging about 5.9 kWh/m² (bright).

The dimmest month is April, down near 4.1 kWh/m² — roughly 30% less than the September peak.

01234567JanFebMarAprMayJunJulAugSepOctNovDecdimmerbrighterdimmoderatebrightintenseSep 265.9 kWhApr 284.1 kWh
Solar energy (kWh/m²)Level
Jan4.3Bright
Feb4.2Bright
Mar4.2Bright
Apr4.1Bright
May4.2Bright
Jun4.6Bright
Jul5.0Bright
Aug5.5Bright
Sep5.9Bright
Oct5.8Bright
Nov5.3Bright
Dec4.8Bright

Where is Rurópolis?

Rurópolis sits at 4.1°S, 54.9°W, 142 m above sea level, in Brazil. The nearest listed city is Aveiro, 72 km away.

Topography around Rurópolis

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

Within 3 km, the terrain around Rurópolis has only modest variations in elevation — a maximum elevation change of 136 m around an average of 133 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 319 m; within 80 km, significant variations in elevation — a maximum elevation change of 471 m.

The land around Rurópolis is covered by trees (46%) and grassland (46%) within 3 km, trees (71%) and grassland (29%) within 16 km, and trees (89%) within 80 km.

3 km
136 m
16 km
319 m
80 km
471 m
treesgrasslandartificial surfacesbare terrainwater
Nearby: Aveiro 72 km · Placas 81 km · Itaituba 121 km · Trairão 126 km · Uruará 137 km · Mojuí dos Campos 160 km · Belterra 162 km · Santarém 185 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 Rurópolis (-4.0956°, -54.9103°, elevation 142 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).