Climate and average weather in Uarini

In Uarini, the weather is oppressive, hot, wet, and partly cloudy and remarkably steady, with daytime highs holding near hot levels all year. The wettest stretch peaks around May.

Best: early June to early October

Over the course of the year, the temperature in Uarini typically varies from 23°C to 32°C, and is rarely below 22°C or above 34°C. September is the hottest month of the year, while May is the coldest.

Based on the travel score, the best times of year to visit Uarini for warm-weather activities are from late January to mid February and early June to early October.

Hottest
Sep
32°
Coldest
May
24°
Wettest
May
350 mm
Driest
Aug
135 mm
Rain / yr
2861 mm
309 wet days
Daylight
11.8–12.2 h
shortest–longest
Elevation
56 m
3.0°S
Clearest
Aug
62% cloud

Uarini is human settlement in Brazil.

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

Uarini 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 June to early October.

Temperature through the year

Average highAverage lowShaded bands: 10–90% of days

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

Temperatures in Uarini stay fairly even through the year, without a distinct hot or cool season. The warmest month is September, with an average high of 32°C and low of 24°C; the coolest is May, with an average low of 24°C and high of 30°C.

Days typically run about 7°C warmer than nights year-round.

20°25°30°35°JanFebMarAprMayJunJulAugSepOctNovDec
Avg high (°C)Avg low (°C)
Jan3124
Feb3124
Mar3024
Apr3024
May3024
Jun3023
Jul3023
Aug3124
Sep3224
Oct3224
Nov3124
Dec3124

How hot and cold Uarini 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, Uarini feels like about 39°C (around October 8). Nearly every day a year carries some heat stress, and 60 of them tip into dangerous heat (feels-like above 39°C), peaking in October.

20°25°30°35°40°JanFebMarAprMayJunJulAugSepOctNovDecdangerous heat
Feels-like high (°C)Air high (°C)Feels-like low (°C)Air low (°C)
Jan37312424
Feb37312424
Mar37302424
Apr37302424
May36302424
Jun36302323
Jul36302323
Aug38312324
Sep39322424
Oct39322424
Nov39312424
Dec38312424

Average hourly temperature in Uarini

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 32°C, and coldest before dawn in May, near 24°C.

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

Uarini 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° / 24°2682612.22.8
Feb31° / 24°24623.612.12.8
Mar30° / 24°32627.9122.7
Apr30° / 24°34627.711.92.7
May30° / 24°35029.111.92.7
Jun30° / 23°22126.311.83.1
Jul30° / 23°15423.811.83.4
Aug31° / 24°13522.511.93.2
Sep32° / 24°15523122.9
Oct32° / 24°18224.612.12.7
Nov31° / 24°21525.712.12.6
Dec31° / 24°26428.412.22.6

Chance of rain

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

Uarini gets about 2861 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 4.1 months, from around Feb 19 to Jun 24, peaking in May at about 94% chance on a given day. The drier stretch runs the rest of the year, bottoming out around Aug 2.

May is the wettest month by volume, with 350 mm over about 29 wet days; August is the driest, with 135 mm.

0%10%20%30%40%50%60%70%80%90%100%JanFebMarAprMayJunJulAugSepOctNovDecdrierwetterdriermostly drysome rainoften wetvery wetMay 15 · 94%Aug 2 · 68%
Rain on a day (%)Rain days
Jan8526
Feb8424
Mar9028
Apr9228
May9329
Jun8826
Jul7724
Aug7323
Sep7623
Oct8025
Nov8626
Dec9128

Monthly rainfall

Over a full year, Uarini collects about 2861 mm of rain across 309 wet days — roughly 238 mm in an average month.

It doesn’t fall evenly. May is the wettest month with 350 mm, while August is the driest at just 135 mm. The three wettest months alone bring about 36% of the year’s total.

050100150200250300350400JanFebMarAprMayJunJulAugSepOctNovDec268246326346350221154135155182215264
Rainfall (mm)Rain days
Jan26826
Feb24624
Mar32628
Apr34628
May35029
Jun22126
Jul15424
Aug13523
Sep15523
Oct18225
Nov21526
Dec26428

Clouds and sunshine

ClearMostly clearPartly cloudyMostly cloudyOvercast

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

In Uarini, 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 6 and lasts for 4.5 months, ending around October 20. The clearest month is August, when the sky is clear, mostly clear, or partly cloudy 45% of the time on average.

The cloudier part of the year begins around October 21 and lasts for 7.5 months, ending around June 5. The cloudiest month is April, when it is overcast or mostly cloudy 95% 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 31 · 52%Apr 26 · 3%mostly clearpartly cloudymostly cloudyovercastcloudierclearercloudier
Clearer (%)Cloudier (%)
Jan892
Feb892
Mar694
Apr595
May991
Jun2476
Jul4357
Aug4555
Sep3268
Oct2080
Nov1189
Dec991

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, Uarini 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)
Jan12.26:256:34
Feb12.16:326:38
Mar12.06:296:31
Apr11.96:236:19
May11.96:216:13
Jun11.86:266:16
Jul11.86:316:21
Aug11.96:276:22
Sep12.06:156:14
Oct12.16:036:07
Nov12.16:026:10
Dec12.26:116:22

Sunny days

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

Uarini averages about 2 sunny days a month — counting the days the sky stays clear or mostly clear — with a clear seasonal swing between 0 and 6 days.

The sunnier stretch runs 4.4 months, from around Jun 10 to Oct 22. The sunniest month is August, with roughly 5 sunny days (gloomy).

The greyest month is April, down near 0 sunny days — about 96% fewer than the August peak.

0510JanFebMarAprMayJunJulAugSepOctNovDecgreyersunniergreyergloomymixedAug 16 daysApr 260 days
Sunny daysSky
Jan0Gloomy
Feb1Gloomy
Mar0Gloomy
Apr0Gloomy
May0Gloomy
Jun2Gloomy
Jul4Gloomy
Aug5Gloomy
Sep3Gloomy
Oct2Gloomy
Nov1Gloomy
Dec0Gloomy

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.

Uarini 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%JanFebMarAprMayJunJulAugSepOctNovDecmiserableoppressive
Muggy (%)Oppressive (%)Miserable (%)
Jan02377
Feb02674
Mar01783
Apr01684
May02179
Jun13663
Jul24157
Aug12673
Sep01684
Oct01090
Nov0892
Dec01387

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 Uarini is steady company: average speeds sit near 4 km/hcalm — in every month of the year, with no meaningful windy or calm season.

0510JanFebMarAprMayJunJulAugSepOctNovDeccalmFeb 13 · 5 km/hAug 26 · 4 km/h
Wind speed (km/h)Feels
Jan5calm
Feb5calm
Mar5calm
Apr4calm
May4calm
Jun4calm
Jul4calm
Aug4calm
Sep4calm
Oct4calm
Nov4calm
Dec4calm

Best time to visit Uarini

TravelBeach/poolTemperatureCloudsPrecipitation

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

Around late September, Uarini 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. In Uarini it holds close to 3.5 all year, so any month is about as good as another for general outdoor tourist activities.

0246810JanFebMarAprMayJunJulAugSepOctNovDectravel scoretemperaturecloudsprecipitation

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
Jan2.8poor
Feb2.8poor
Mar2.7poor
Apr2.7poor
May2.7poor
Jun3.1poor
Jul3.4poor
Aug3.2poor
Sep2.9poor
Oct2.7poor
Nov2.6poor
Dec2.6poor

The beach/pool score favors clear, rainless days with daytime highs between 24°C and 34°C. Based on this score, the best times of year to visit Uarini for hot-weather activities run from mid January to late February and again from mid June to early November, with a peak score in the first week of August.

024681012JanFebMarAprMayJunJulAugSepOctNovDecbest timebest timebeach/pool scoretemperaturecloudsprecipitationAug 2 · 5.0

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 Uarini, 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.

Uarini packs about the same all year — highs hold near 32°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, Uarini sees daytime highs around 32°C and nights near 24°C. Pack light clothes and rain gear. Worth having: sun protection. About 23 days see rain.

UV index (midday) in Uarini 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 Uarini peaks around January 23 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 13 at about 10 (extreme).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeJan 23UV 15Jul 13UV 10
UV index (midday)Level
Jan15Extreme
Feb14Extreme
Mar15Extreme
Apr14Extreme
May12Extreme
Jun10Extreme
Jul10Extreme
Aug11Extreme
Sep11Extreme
Oct12Extreme
Nov12Extreme
Dec12Extreme

Average hourly UV index in Uarini

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 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
Feb86.5
Mar8.56.5
Apr86.5
May86
Jun7.55
Jul7.55
Aug7.55.5
Sep7.55.5
Oct86
Nov86
Dec86

Air quality in Uarini 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 Uarini is worst in September — around 32 µg/m³ PM2.5 (moderate), about 2.9× the cleanest month (June, 11 µg/m³).

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodModerateSep 1531 µg/m³Jun 911 µg/m³
PM2.5 (µg/m³)Level
Jan15Moderate
Feb16Moderate
Mar17Moderate
Apr15Moderate
May11Good
Jun11Good
Jul13Moderate
Aug25Moderate
Sep32Moderate
Oct24Moderate
Nov19Moderate
Dec15Moderate
Almanac & agriculture

Growing season

Chance of a frost-free dayFrost-free year round

Uarini 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. Uarini banks about 6,263 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)
Jan534
Feb485
Mar533
Apr509
May517
Jun494
Jul513
Aug534
Sep530
Oct551
Nov528
Dec537

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.

Uarini receives about 4.6 kWh/m² a day of solar energy on average — bright — with a clear seasonal swing between 3.7 and 5.3 kWh/m².

The brighter stretch of the year lasts 5.0 months, from around Jul 28 to Dec 25. The brightest month is September, averaging about 5.2 kWh/m² (bright).

The dimmest month is May, down near 3.8 kWh/m² — roughly 28% less than the September peak.

0123456JanFebMarAprMayJunJulAugSepOctNovDecdimmerbrighterdimmoderatebrightSep 285.3 kWhMay 213.7 kWh
Solar energy (kWh/m²)Level
Jan4.6Bright
Feb4.6Bright
Mar4.5Bright
Apr4.1Bright
May3.7Moderate
Jun3.9Moderate
Jul4.3Bright
Aug4.9Bright
Sep5.3Bright
Oct5.3Bright
Nov5.0Bright
Dec4.7Bright

Where is Uarini?

Uarini sits at 3.0°S, 65.1°W, 56 m above sea level, in Brazil. The nearest listed city is Alvarães, 42 km away.

CoariCarauariTonantinsSanto Antônio do Içá

Topography around Uarini

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

Within 3 km, the terrain around Uarini has only modest variations in elevation — a maximum elevation change of 47 m around an average of 52 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 54 m; within 80 km, only modest variations in elevation — a maximum elevation change of 65 m.

The land around Uarini is covered by trees (84%) within 3 km, trees (83%) within 16 km, and trees (91%) within 80 km.

3 km
47 m
16 km
54 m
80 km
65 m
treesgrasslandwaterwetland
Nearby: Alvarães 42 km · Tefé 60 km · Fonte Boa 121 km · Maraã 137 km · Coari 250 km · Carauari 289 km · Tonantins 299 km · Santo Antônio do Içá 315 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 Uarini (-2.99°, -65.1083°, elevation 56 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).