Climate and average weather in Araruna

In Araruna, the weather is humid, hot, showery, and partly cloudy and remarkably steady, with daytime highs holding near hot levels all year. The wettest stretch peaks around April.

Best: late May to late October

Over the course of the year, the temperature in Araruna typically varies from 20°C to 31°C, and is rarely below 19°C or above 33°C. December is the hottest month of the year, while July is the coldest.

Based on the travel score, the best time of year to visit Araruna for warm-weather activities is from late May to late October.

Hottest
Dec
31°
Coldest
Jul
20°
Wettest
Apr
77 mm
Driest
Oct
7 mm
Rain / yr
431 mm
99 wet days
Daylight
11.6–12.4 h
shortest–longest
Elevation
496 m
6.6°S
Clearest
Sep
46% cloud

Araruna 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 October.

Temperature through the year

Average highAverage lowShaded bands: 10–90% of days

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

Temperatures in Araruna stay fairly even through the year, without a distinct hot or cool season. The warmest month is December, with an average high of 31°C and low of 22°C; the coolest is July, with an average low of 20°C and high of 28°C.

Days typically run about 8°C warmer than nights year-round.

15°20°25°30°35°JanFebMarAprMayJunJulAugSepOctNovDec
Avg high (°C)Avg low (°C)
Jan3122
Feb3123
Mar3123
Apr3022
May2922
Jun2821
Jul2820
Aug2820
Sep2921
Oct3121
Nov3122
Dec3122

How hot and cold Araruna 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, Araruna feels like about 34°C (around March 12). About 206 days a year carry some heat stress, peaking in March.

15°20°25°30°35°JanFebMarAprMayJunJulAugSepOctNovDec
Feels-like high (°C)Air high (°C)Feels-like low (°C)Air low (°C)
Jan33312222
Feb34312323
Mar34312323
Apr33302222
May32292222
Jun30282121
Jul29282020
Aug29282020
Sep31292021
Oct32312121
Nov33312222
Dec33312222

Average hourly temperature in Araruna

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 December afternoons, near 31°C, and coldest before dawn in July, near 20°C.

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

Araruna 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
Jan31° / 22°4310.912.34.4
Feb31° / 23°5311.812.24.2
Mar31° / 23°7415.3124.1
Apr30° / 22°7714.611.94.4
May29° / 22°5211.611.75.2
Jun28° / 21°429.211.66.3
Jul28° / 20°347.611.76.8
Aug28° / 20°15411.86.8
Sep29° / 21°82.6126.3
Oct31° / 21°72.212.15.7
Nov31° / 22°82.812.35.4
Dec31° / 22°176.112.44.9

Chance of rain

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

Araruna gets about 431 mm of precipitation a year. On a typical day the chance of rain is some rain, but that rises and falls sharply with the seasons.

The wetter season lasts 6.2 months, from around Jan 4 to Jul 11, peaking in March at about 52% chance on a given day. The drier stretch runs the rest of the year, bottoming out around Oct 1.

April is the wettest month by volume, with 77 mm over about 15 wet days; October is the driest, with 7 mm.

0%10%20%30%40%50%60%JanFebMarAprMayJunJulAugSepOctNovDecwetterdriermostly drysome rainoften wetvery wetMar 26 · 52%Oct 1 · 6%
Rain on a day (%)Rain days
Jan3511
Feb4212
Mar4915
Apr4915
May3712
Jun319
Jul248
Aug134
Sep93
Oct72
Nov93
Dec206

Monthly rainfall

Over a full year, Araruna collects about 431 mm of rain across 99 wet days — roughly 36 mm in an average month.

It doesn’t fall evenly. April is the wettest month with 77 mm, while October is the driest at just 7 mm. The three wettest months alone bring about 48% of the year’s total.

0255075100JanFebMarAprMayJunJulAugSepOctNovDec435374775242341587817
Rainfall (mm)Rain days
Jan4311
Feb5312
Mar7415
Apr7715
May5212
Jun429
Jul348
Aug154
Sep83
Oct72
Nov83
Dec176

Clouds and sunshine

ClearMostly clearPartly cloudyMostly cloudyOvercast

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

In Araruna, 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 June 28 and lasts for 6.0 months, ending around December 26. The clearest month is September, when the sky is clear, mostly clear, or partly cloudy 77% of the time on average.

The cloudier part of the year begins around December 27 and lasts for 6.0 months, ending around June 27. The cloudiest month is April, when it is overcast or mostly cloudy 54% 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%JanFebMarAprMayJunJulAugSepOctNovDecSep 28 · 82%Apr 18 · 45%clearmostly clearpartly cloudymostly cloudyovercastcloudierclearer
Clearer (%)Cloudier (%)
Jan5248
Feb4951
Mar4852
Apr4654
May5545
Jun5941
Jul6238
Aug6733
Sep7723
Oct7525
Nov6634
Dec6238

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 24 min of light; the shortest, around June 1, only 11 h 36 min — a swing of roughly 0 h 48 min.

12 AM4 AM8 AM12 PM4 PM8 PM12 AMJanFebMarAprMayJunJulAugSepOctNovDec
Daylight (h)Sunrise (AM)Sunset (PM)
Jan12.35:225:43
Feb12.25:315:44
Mar12.05:315:34
Apr11.95:285:19
May11.75:285:10
Jun11.65:355:12
Jul11.75:395:18
Aug11.85:345:21
Sep12.05:185:16
Oct12.15:045:12
Nov12.34:595:17
Dec12.45:085:30

Sunny days

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

Araruna averages about 8 sunny days a month — counting the days the sky stays clear or mostly clear — with a clear seasonal swing between 6 and 14 days.

The sunnier stretch runs 3.9 months, from around Sep 3 to Dec 31. The sunniest month is October, with roughly 12 sunny days (mixed).

The greyest month is April, down near 7 sunny days — about 47% fewer than the October peak.

05101520JanFebMarAprMayJunJulAugSepOctNovDecgreyersunniergloomymixedbrightOct 114 daysApr 286 days
Sunny daysSky
Jan8Gloomy
Feb7Gloomy
Mar7Gloomy
Apr7Gloomy
May7Gloomy
Jun7Gloomy
Jul7Gloomy
Aug8Gloomy
Sep11Mixed
Oct13Mixed
Nov10Mixed
Dec10Mixed

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.

Araruna 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 99% of the time. Even in August, 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%JanFebMarAprMayJunJulAugSepOctNovDecoppressivemuggyhumid
Humid (%)Muggy (%)Oppressive (%)
Jan16237
Feb04753
Mar02971
Apr02773
May05050
Jun57817
Jul20773
Aug35650
Sep32680
Oct15841
Nov6913
Dec28117

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 Araruna is typically light breeze, near 15 km/h, and varies moderately with the seasons.

The windier part of the year lasts 5.8 months, from around Jun 9 to Dec 3. The windiest month is August, averaging about 17 km/h (light breeze).

The calmer part of the year runs from around Dec 4 to Jun 8, with March the calmest month at about 12 km/h.

0510152025JanFebMarAprMayJunJulAugSepOctNovDeccalmerwindiercalmercalmlight breezebreezyAug 31 · 17 km/hMar 24 · 11 km/h
Wind speed (km/h)Feels
Jan13light breeze
Feb13light breeze
Mar12calm
Apr12light breeze
May13light breeze
Jun15light breeze
Jul16light breeze
Aug17light breeze
Sep17light breeze
Oct16light breeze
Nov15light breeze
Dec14light breeze

Best time to visit Araruna

TravelBeach/poolTemperatureCloudsPrecipitation

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

Around mid October, Araruna 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 Araruna for general outdoor tourist activities is from late May to late October, with a peak score in the last week of July.

0246810JanFebMarAprMayJunJulAugSepOctNovDecbest timetravel scoretemperaturecloudsprecipitationJul 30 · 7.0

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
Jan4.4fair
Feb4.2fair
Mar4.1fair
Apr4.4fair
May5.2fair
Jun6.2good
Jul6.8good
Aug6.8good
Sep6.3good
Oct5.7good
Nov5.4fair
Dec4.9fair

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 Araruna for hot-weather activities is from mid May to early January, with a peak score in the last week of September.

024681012JanFebMarAprMayJunJulAugSepOctNovDecbest timebeach/pool scoretemperaturecloudsprecipitationSep 25 · 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 Araruna, 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.

Araruna packs about the same all year — highs hold near 31°C. Across the year the things worth having are light clothes and sun protection.

Light clothing
Warm layer
Winter coat
Rain gear
Sun protection
Windbreaker

In December, Araruna sees daytime highs around 31°C and nights near 22°C. Pack light clothes and sun protection. About 6 days see rain.

UV index (midday) in Araruna 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 Araruna peaks around March 12 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 15 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 highExtremeMar 12UV 15Jul 15UV 10
UV index (midday)Level
Jan13Extreme
Feb15Extreme
Mar15Extreme
Apr14Extreme
May11Extreme
Jun10Very high
Jul10Very high
Aug10Extreme
Sep12Extreme
Oct12Extreme
Nov12Extreme
Dec12Extreme

Average hourly UV index in Araruna

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 8.5 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)
Jan8.56.5
Feb8.56.5
Mar8.56.5
Apr86
May7.55.5
Jun75
Jul75
Aug7.55
Sep86
Oct86
Nov86
Dec86
Almanac & agriculture

Growing season

Chance of a frost-free dayFrost-free year round

Araruna 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. Araruna banks about 5,708 degree days a year, and the running total — which growers use to time plantings and predict maturity — climbs fastest around February.

02,0004,0006,000JanFebMarAprMayJunJulAugSepOctNovDec
Growing degree days (°C·days)
Jan515
Feb467
Mar516
Apr486
May482
Jun435
Jul431
Aug437
Sep447
Oct490
Nov488
Dec514

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.

Araruna receives about 5.4 kWh/m² a day of solar energy on average — bright — with a clear seasonal swing between 4.2 and 6.3 kWh/m².

The brighter stretch of the year lasts 6.7 months, from around Sep 8 to Mar 31. The brightest month is November, averaging about 6.3 kWh/m² (intense).

The dimmest month is June, down near 4.2 kWh/m² — roughly 32% less than the November peak.

01234567JanFebMarAprMayJunJulAugSepOctNovDecbrighterdimmerbrighterdimmoderatebrightintenseNov 36.3 kWhJun 264.2 kWh
Solar energy (kWh/m²)Level
Jan5.9Bright
Feb6.0Bright
Mar5.7Bright
Apr5.2Bright
May4.7Bright
Jun4.2Bright
Jul4.3Bright
Aug5.0Bright
Sep5.7Bright
Oct6.2Intense
Nov6.3Intense
Dec6.1Intense

Where is Araruna?

Araruna sits at 6.6°S, 35.7°W, 496 m above sea level, in Brazil. The nearest listed city is Cacimba de Dentro, 11 km away.

Topography around Araruna

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

Within 3 km, the terrain around Araruna has only modest variations in elevation — a maximum elevation change of 209 m around an average of 509 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 476 m; within 80 km, large variations in elevation — a maximum elevation change of 744 m.

The land around Araruna is covered by grassland (69%) within 3 km, grassland (55%) and shrubs (37%) within 16 km, and grassland (51%) and shrubs (37%) within 80 km.

3 km
209 m
16 km
476 m
80 km
744 m
treesshrubsgrasslandcroplandartificial surfaces
Nearby: Cacimba de Dentro 11 km · Solânea 23 km · Bananeiras 24 km · Belém 27 km · Nova Cruz 35 km · Santo Antônio 40 km · Guarabira 43 km · Areia 45 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 Araruna (-6.5583°, -35.7417°, elevation 496 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. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).