Climate and average weather in Feijó

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

Best: late May to mid August

Over the course of the year, the temperature in Feijó typically varies from 20°C to 32°C, and is rarely below 17°C or above 35°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 Feijó for warm-weather activities is from late May to mid August.

Hottest
Sep
32°
Coldest
May
22°
Wettest
Mar
290 mm
Driest
Jul
49 mm
Rain / yr
2130 mm
254 wet days
Daylight
11.5–12.5 h
shortest–longest
Elevation
160 m
8.2°S
Clearest
Jul
48% cloud

Feijó is human settlement in Brazil.

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

Feijó 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 mid August.

Temperature through the year

Average highAverage lowShaded bands: 10–90% of days

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

Temperatures in Feijó 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 22°C; the coolest is May, 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.

15°20°25°30°35°40°JanFebMarAprMayJunJulAugSepOctNovDec
Avg high (°C)Avg low (°C)
Jan3023
Feb3023
Mar3023
Apr3022
May3022
Jun3021
Jul3020
Aug3221
Sep3222
Oct3223
Nov3123
Dec3023

How hot and cold Feijó 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, Feijó feels like about 37°C (around October 12). 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)
Jan34302323
Feb34302323
Mar34302323
Apr34302222
May33302222
Jun33302121
Jul33302020
Aug35322121
Sep36322222
Oct36322223
Nov36312323
Dec35302323

Average hourly temperature in Feijó

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 22°C.

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

Feijó 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°26227.912.42.8
Feb30° / 23°25725.212.32.8
Mar30° / 23°29028.312.12.8
Apr30° / 22°20324.111.83.1
May30° / 22°12320.311.63.8
Jun30° / 21°711411.54.7
Jul30° / 20°4910.611.64.8
Aug32° / 21°6911.111.73.9
Sep32° / 22°12517.2123.2
Oct32° / 23°1832312.22.8
Nov31° / 23°23524.912.42.8
Dec30° / 23°26427.612.52.8

Chance of rain

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

Feijó gets about 2130 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 7.0 months, from around Oct 7 to May 6, peaking in March at about 92% chance on a given day. The drier stretch runs the rest of the year, bottoming out around Jul 31.

March is the wettest month by volume, with 290 mm over about 28 wet days; July is the driest, with 49 mm.

0%10%20%30%40%50%60%70%80%90%100%JanFebMarAprMayJunJulAugSepOctNovDecwetterdrierwettermostly drysome rainoften wetvery wetMar 17 · 92%Jul 31 · 28%
Rain on a day (%)Rain days
Jan9028
Feb9025
Mar9128
Apr8024
May6520
Jun4714
Jul3411
Aug3711
Sep5717
Oct7323
Nov8325
Dec8928

Monthly rainfall

Over a full year, Feijó collects about 2130 mm of rain across 254 wet days — roughly 177 mm in an average month.

It doesn’t fall evenly. March is the wettest month with 290 mm, while July is the driest at just 49 mm. The three wettest months alone bring about 38% of the year’s total.

050100150200250300350JanFebMarAprMayJunJulAugSepOctNovDec262257290203123714969125183235264
Rainfall (mm)Rain days
Jan26228
Feb25725
Mar29028
Apr20324
May12320
Jun7114
Jul4911
Aug6911
Sep12517
Oct18323
Nov23525
Dec26428

Clouds and sunshine

ClearMostly clearPartly cloudyMostly cloudyOvercast

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

In Feijó, 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 21 and lasts for 4.6 months, ending around October 7. The clearest month is July, when the sky is clear, mostly clear, or partly cloudy 68% of the time on average.

The cloudier part of the year begins around October 8 and lasts for 7.4 months, ending around May 20. The cloudiest month is February, when it is overcast or mostly cloudy 96% 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 27 · 72%Feb 24 · 4%clearmostly clearpartly cloudymostly cloudyovercastcloudierclearercloudier
Clearer (%)Cloudier (%)
Jan595
Feb496
Mar694
Apr1189
May2674
Jun5149
Jul6832
Aug6634
Sep4555
Oct2179
Nov1090
Dec793

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 30 min of light; the shortest, around June 5, only 11 h 30 min — a swing of roughly 1 hour.

12 AM4 AM8 AM12 PM4 PM8 PM12 AMJanFebMarAprMayJunJulAugSepOctNovDec
Daylight (h)Sunrise (AM)Sunset (PM)
Jan12.45:386:04
Feb12.35:486:04
Mar12.15:495:53
Apr11.85:475:36
May11.65:495:27
Jun11.55:565:27
Jul11.66:005:34
Aug11.75:545:37
Sep12.05:375:34
Oct12.25:215:32
Nov12.45:155:38
Dec12.55:235:52

Sunny days

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

Feijó 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 15 days.

The sunnier stretch runs 4.0 months, from around Jun 2 to Sep 30. The sunniest month is July, with roughly 13 sunny days (mixed).

The greyest month is February, down near 0 sunny days — about 99% fewer than the July peak.

05101520JanFebMarAprMayJunJulAugSepOctNovDecgreyersunniergreyergloomymixedbrightJul 3015 daysFeb 60 days
Sunny daysSky
Jan0Gloomy
Feb0Gloomy
Mar0Gloomy
Apr1Gloomy
May3Gloomy
Jun7Gloomy
Jul13Mixed
Aug13Mixed
Sep6Gloomy
Oct3Gloomy
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.

Feijó 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 4% of the time.

0%10%20%30%40%50%60%70%80%90%100%JanFebMarAprMayJunJulAugSepOctNovDecmiserableoppressivemuggyhumid
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
Jan00008020
Feb00008020
Mar00007822
Apr00157223
May01397215
Jun01414773
Jul12923640
Aug13822661
Sep0129826
Oct00037918
Nov00017128
Dec00007822

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 Feijó is steady company: average speeds sit near 5 km/hcalm — in every month of the year, with no meaningful windy or calm season.

0510JanFebMarAprMayJunJulAugSepOctNovDeccalmAug 11 · 6 km/hMar 18 · 5 km/h
Wind speed (km/h)Feels
Jan5calm
Feb5calm
Mar5calm
Apr5calm
May5calm
Jun5calm
Jul5calm
Aug6calm
Sep5calm
Oct5calm
Nov5calm
Dec5calm

Hazard calendar for Feijó

In seasonPeak

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

Feijó's rainy season runs October–April, 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 Feijó

TravelBeach/poolTemperatureCloudsPrecipitation

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

Around late May, Feijó is still near the start of its best-weather window — great conditions with the peak-season crowds not yet at full swing.

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 Feijó for general outdoor tourist activities is from late May to mid August, with a peak score in the second week of July.

0246810JanFebMarAprMayJunJulAugSepOctNovDecbest timetravel scoretemperaturecloudsprecipitationJul 13 · 4.9

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
Jan2.8poor
Feb2.8poor
Mar2.8poor
Apr3.1poor
May3.8fair
Jun4.6fair
Jul4.8fair
Aug3.9fair
Sep3.2poor
Oct2.9poor
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 Feijó for hot-weather activities is from early June to early September, with a peak score in the last week of July.

024681012JanFebMarAprMayJunJulAugSepOctNovDecbest timebeach/pool scoretemperaturecloudsprecipitationJul 26 · 7.0

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 Feijó, 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.

Feijó 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, Feijó sees daytime highs around 32°C and nights near 22°C. Pack light clothes and rain gear. Worth having: sun protection. About 17 days see rain.

UV index (midday) in Feijó 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 Feijó peaks around February 12 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near August 24 at about 8 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highExtremeFeb 12UV 15Aug 24UV 8
UV index (midday)Level
Jan15Extreme
Feb16Extreme
Mar15Extreme
Apr13Extreme
May11Extreme
Jun9Very high
Jul9Very high
Aug8Very high
Sep8Very high
Oct13Extreme
Nov13Extreme
Dec12Extreme

Average hourly UV index in Feijó

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 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)
Jan8.57
Feb8.57
Mar86.5
Apr86
May7.55.5
Jun74.5
Jul74.5
Aug74.5
Sep74.5
Oct86
Nov86
Dec86

Air quality in Feijó 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 Feijó is worst in September — around 80 µg/m³ PM2.5 (unhealthy), about 11.8× the cleanest month (June, 7 µg/m³).

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

020406080JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodUnhealthyModerateGoodSep 1276 µg/m³Jun 117 µg/m³
PM2.5 (µg/m³)Level
Jan12Good
Feb13Moderate
Mar12Moderate
Apr10Good
May8Good
Jun7Good
Jul10Good
Aug57Unhealthy
Sep80Unhealthy
Oct15Moderate
Nov12Good
Dec10Good
Almanac & agriculture

Growing season

Chance of a frost-free dayFrost-free year round

Feijó 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. Feijó banks about 5,925 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)
Jan502
Feb455
Mar505
Apr485
May485
Jun456
Jul474
Aug511
Sep513
Oct529
Nov501
Dec509

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.

Feijó receives about 4.8 kWh/m² a day of solar energy — bright — and it stays remarkably steady, holding between 4.1 and 5.5 kWh/m² all year. For solar panels, output here is a flat line, not a seasonal wave.

01234567JanFebMarAprMayJunJulAugSepOctNovDecdimmoderatebrightintenseSep 295.5 kWhJun 14.1 kWh
Solar energy (kWh/m²)Level
Jan4.7Bright
Feb4.6Bright
Mar4.5Bright
Apr4.4Bright
May4.2Bright
Jun4.2Bright
Jul4.6Bright
Aug5.2Bright
Sep5.4Bright
Oct5.4Bright
Nov5.0Bright
Dec4.8Bright

Where is Feijó?

Feijó sits at 8.2°S, 70.4°W, 160 m above sea level, in Brazil. The nearest listed city is Tarauacá, 45 km away.

Cruzeiro do SulMarechal ThaumaturgoMâncio LimaBoca do Acre

Topography around Feijó

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

Within 3 km, the terrain around Feijó has only modest variations in elevation — a maximum elevation change of 38 m around an average of 164 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 119 m; within 80 km, only modest variations in elevation — a maximum elevation change of 188 m.

The land around Feijó is covered by grassland (50%) and trees (37%) within 3 km, trees (69%) and grassland (30%) within 16 km, and trees (93%) within 80 km.

3 km
38 m
16 km
119 m
80 km
188 m
treesgrasslandartificial surfaceswater
Nearby: Tarauacá 45 km · Eirunepé 176 km · Ipixuna 193 km · Sena Madureira 210 km · Cruzeiro do Sul 263 km · Marechal Thaumaturgo 281 km · Mâncio Lima 286 km · Boca do Acre 332 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 Feijó (-8.1654°, -70.3549°, elevation 160 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).