Climate and average weather in Rondon do Pará

In Rondon do Pará, 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 March.

Best: mid May to late September

Over the course of the year, the temperature in Rondon do Pará typically varies from 21°C to 34°C, and is rarely below 20°C or above 36°C. August is the hottest month of the year, while February is the coldest.

Based on the travel score, the best time of year to visit Rondon do Pará for warm-weather activities is from mid May to late September.

Hottest
Aug
34°
Coldest
Feb
22°
Wettest
Mar
336 mm
Driest
Aug
6 mm
Rain / yr
1669 mm
184 wet days
Daylight
11.7–12.3 h
shortest–longest
Elevation
191 m
4.8°S
Clearest
Aug
36% cloud

Rondon do Pará 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 late September.

Temperature through the year

Average highAverage lowShaded bands: 10–90% of days

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

Temperatures in Rondon do Pará stay fairly even through the year, without a distinct hot or cool season. The warmest month is August, with an average high of 34°C and low of 22°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 12°C) in August.

20°25°30°35°40°JanFebMarAprMayJunJulAugSepOctNovDec
Avg high (°C)Avg low (°C)
Jan3022
Feb3022
Mar3022
Apr3022
May3122
Jun3222
Jul3321
Aug3422
Sep3423
Oct3323
Nov3223
Dec3122

How hot and cold Rondon do Pará 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, Rondon do Pará feels like about 37°C (around October 2). Nearly every day a year carries some heat stress, peaking in October.

20°25°30°35°40°JanFebMarAprMayJunJulAugSepOctNovDec
Feels-like high (°C)Air high (°C)Feels-like low (°C)Air low (°C)
Jan33302222
Feb33302222
Mar33302222
Apr34302222
May35312222
Jun35322222
Jul34332121
Aug35342222
Sep36342323
Oct36332323
Nov36322323
Dec35312222

Average hourly temperature in Rondon do Pará

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 August 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

Rondon do Pará 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°27427.512.22.9
Feb30° / 22°28425.912.22.8
Mar30° / 22°33629.3122.7
Apr30° / 22°24026.211.92.9
May31° / 22°13017.311.83.8
Jun32° / 22°235.211.74.5
Jul33° / 21°132.811.84.2
Aug34° / 22°61.211.83.8
Sep34° / 23°163.4123.7
Oct33° / 23°468.412.13.6
Nov32° / 23°11315.312.23.4
Dec31° / 22°18821.812.33.2

Chance of rain

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

Rondon do Pará gets about 1669 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 6.1 months, from around Nov 15 to May 19, peaking in March at about 96% chance on a given day. The drier stretch runs the rest of the year, bottoming out around Aug 5.

March is the wettest month by volume, with 336 mm over about 29 wet days; August is the driest, with 6 mm.

0%10%20%30%40%50%60%70%80%90%100%110%JanFebMarAprMayJunJulAugSepOctNovDecwetterdrierwettermostly drysome rainoften wetvery wetMar 20 · 96%Aug 5 · 3%
Rain on a day (%)Rain days
Jan8928
Feb9226
Mar9429
Apr8726
May5517
Jun195
Jul93
Aug41
Sep113
Oct288
Nov5015
Dec7122

Monthly rainfall

Over a full year, Rondon do Pará collects about 1669 mm of rain across 184 wet days — roughly 139 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 6 mm. The three wettest months alone bring about 54% of the year’s total.

050100150200250300350400JanFebMarAprMayJunJulAugSepOctNovDec274284336240130231361646113188
Rainfall (mm)Rain days
Jan27428
Feb28426
Mar33629
Apr24026
May13017
Jun235
Jul133
Aug61
Sep163
Oct468
Nov11315
Dec18822

Clouds and sunshine

ClearMostly clearPartly cloudyMostly cloudyOvercast

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

In Rondon do Pará, 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 20 and lasts for 5.4 months, ending around October 29. The clearest month is August, when the sky is clear, mostly clear, or partly cloudy 85% of the time on average.

The cloudier part of the year begins around October 30 and lasts for 6.6 months, ending around May 19. The cloudiest month is March, 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%JanFebMarAprMayJunJulAugSepOctNovDecAug 2 · 87%Mar 19 · 7%clearmostly clearpartly cloudymostly cloudyovercastcloudierclearercloudier
Clearer (%)Cloudier (%)
Jan991
Feb991
Mar892
Apr1486
May3763
Jun7129
Jul8218
Aug8515
Sep8020
Oct5644
Nov3070
Dec2080

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, Rondon do Pará barely changes through the year: days stay near 12 h 18 min of light in every season.

12 AM4 AM8 AM12 PM4 PM8 PM12 AMJanFebMarAprMayJunJulAugSepOctNovDec
Daylight (h)Sunrise (AM)Sunset (PM)
Jan12.26:146:29
Feb12.26:226:32
Mar12.06:216:23
Apr11.96:166:09
May11.86:156:02
Jun11.76:216:04
Jul11.86:256:10
Aug11.86:216:12
Sep12.06:076:06
Oct12.15:546:01
Nov12.25:516:04
Dec12.36:006:17

Sunny days

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

Rondon do Pará averages about 7 sunny days a month — counting the days the sky stays clear or mostly clear — with a clear seasonal swing between 0 and 20 days.

The sunnier stretch runs 4.9 months, from around May 26 to Oct 20. The sunniest month is August, with roughly 19 sunny days (bright).

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

0510152025JanFebMarAprMayJunJulAugSepOctNovDecgreyersunniergreyergloomymixedbrightbrilliantAug 720 daysMar 190 days
Sunny daysSky
Jan1Gloomy
Feb1Gloomy
Mar0Gloomy
Apr1Gloomy
May5Gloomy
Jun12Mixed
Jul17Bright
Aug19Bright
Sep16Bright
Oct9Mixed
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.

Rondon do Pará 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 August, the mildest month, the air is dry or comfortable only 11% of the time.

0%10%20%30%40%50%60%70%80%90%100%JanFebMarAprMayJunJulAugSepOctNovDecAug 2 · 15%Jan 1 · 0%muggyoppressivehumidcomfortablehumidcomfortablehumid
Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
Jan000991
Feb000982
Mar000973
Apr000937
May005914
Jun0940500
Jul83344150
Aug103149100
Sep21059290
Oct0141580
Nov0014860
Dec004960

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.

Across the year, average wind speed in Rondon do Pará is typically calm, near 7 km/h, and varies little with the seasons.

The windier part of the year lasts 5.1 months, from around May 27 to Oct 28. The windiest month is August, averaging about 9 km/h (calm).

The calmer part of the year runs from around Oct 29 to May 26, with March the calmest month at about 6 km/h.

051015JanFebMarAprMayJunJulAugSepOctNovDeccalmerwindiercalmercalmlight breezeAug 2 · 9 km/hMar 25 · 6 km/h
Wind speed (km/h)Feels
Jan6calm
Feb6calm
Mar6calm
Apr6calm
May6calm
Jun8calm
Jul9calm
Aug9calm
Sep9calm
Oct8calm
Nov6calm
Dec6calm

Hazard calendar for Rondon do Pará

In seasonPeak

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

Rondon do Pará's monsoon runs December–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 Rondon do Pará

TravelBeach/poolTemperatureCloudsPrecipitation

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

Around mid September, Rondon do Pará 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 Rondon do Pará for general outdoor tourist activities is from mid May to late September, with a peak score in the second week of June.

0246810JanFebMarAprMayJunJulAugSepOctNovDecbest timetravel scoretemperaturecloudsprecipitationJun 13 · 4.6

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
Mar2.7poor
Apr2.9poor
May3.8fair
Jun4.5fair
Jul4.2fair
Aug3.8fair
Sep3.7fair
Oct3.6fair
Nov3.4poor
Dec3.2poor

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 Rondon do Pará for hot-weather activities is from late May to late October, with a peak score in the first week of August.

024681012JanFebMarAprMayJunJulAugSepOctNovDecbest timebeach/pool scoretemperaturecloudsprecipitationAug 1 · 7.7

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 Rondon do Pará, 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.

Rondon do Pará packs about the same all year — highs hold near 34°C. Across the year the things worth having are light clothes, sun protection and rain gear.

Light clothing
Warm layer
Winter coat
Rain gear
Sun protection
Windbreaker

In August, Rondon do Pará sees daytime highs around 34°C and nights near 22°C. Pack light clothes. Worth having: sun protection.

UV index (midday) in Rondon do Pará 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 Rondon do Pará peaks around March 11 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 14 at about 10 (extreme).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeMar 11UV 15Jul 14UV 10
UV index (midday)Level
Jan13Extreme
Feb15Extreme
Mar15Extreme
Apr14Extreme
May11Extreme
Jun10Extreme
Jul10Very high
Aug11Extreme
Sep12Extreme
Oct12Extreme
Nov10Extreme
Dec10Very high

Average hourly UV index in Rondon do Pará

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 March the burn window is concentrated in the middle of the day: about 8 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
Feb8.56.5
Mar86.5
Apr86.5
May7.55.5
Jun7.55
Jul7.55
Aug7.55.5
Sep7.55.5
Oct86
Nov7.55.5
Dec7.55.5

Air quality in Rondon do Pará 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 Rondon do Pará is worst in November — around 35 µg/m³ PM2.5 (poor), about 3.3× the cleanest month (May, 11 µg/m³).

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodModerateNov 1334 µg/m³May 1611 µg/m³
PM2.5 (µg/m³)Level
Jan15Moderate
Feb14Moderate
Mar13Moderate
Apr12Good
May11Good
Jun12Good
Jul15Moderate
Aug19Moderate
Sep24Moderate
Oct30Moderate
Nov35Poor
Dec24Moderate
Almanac & agriculture

Growing season

Chance of a frost-free dayFrost-free year round

Rondon do Pará 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. Rondon do Pará banks about 6,137 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)
Jan492
Feb442
Mar492
Apr482
May507
Jun503
Jul534
Aug554
Sep545
Oct557
Nov518
Dec511

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.

Rondon do Pará receives about 5.2 kWh/m² a day of solar energy on average — bright — with a clear seasonal swing between 4.3 and 6.3 kWh/m².

The brighter stretch of the year lasts 5.3 months, from around Jul 5 to Dec 12. The brightest month is September, averaging about 6.2 kWh/m² (intense).

The dimmest month is March, down near 4.4 kWh/m² — roughly 29% less than the September peak.

01234567JanFebMarAprMayJunJulAugSepOctNovDecdimmerbrighterdimmoderatebrightintenseSep 276.3 kWhMar 304.3 kWh
Solar energy (kWh/m²)Level
Jan4.5Bright
Feb4.4Bright
Mar4.4Bright
Apr4.4Bright
May4.6Bright
Jun5.0Bright
Jul5.4Bright
Aug6.0Bright
Sep6.2Intense
Oct6.2Intense
Nov5.6Bright
Dec5.1Bright

Where is Rondon do Pará?

Rondon do Pará sits at 4.8°S, 48.1°W, 191 m above sea level, in Brazil. The nearest listed city is Açailândia, 65 km away.

Topography around Rondon do Pará

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

Within 3 km, the terrain around Rondon do Pará has only modest variations in elevation — a maximum elevation change of 99 m around an average of 190 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 223 m; within 80 km, significant variations in elevation — a maximum elevation change of 344 m.

The land around Rondon do Pará is covered by trees (43%) and grassland (41%) within 3 km, grassland (55%) and trees (40%) within 16 km, and trees (50%) and grassland (46%) within 80 km.

3 km
99 m
16 km
223 m
80 km
344 m
treesgrasslandcroplandartificial surfaceswater
Nearby: Açailândia 65 km · Bom Jesus do Tocantins 67 km · Itinga do Maranhão 70 km · Dom Eliseu 83 km · Araguatins 97 km · Imperatriz 105 km · João Lisboa 105 km · São Domingos do Araguaia 112 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 Rondon do Pará (-4.7761°, -48.0672°, elevation 191 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).