Climate and average weather in Atalaya

In Atalaya, 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 January.

Best: late May to late August

Over the course of the year, the temperature in Atalaya typically varies from 19°C to 30°C, and is rarely below 17°C or above 33°C. September is the hottest month of the year, while June is the coldest.

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

Hottest
Sep
30°
Coldest
Jun
20°
Wettest
Jan
335 mm
Driest
Jul
51 mm
Rain / yr
2314 mm
247 wet days
Daylight
11.4–12.6 h
shortest–longest
Elevation
232 m
10.7°S
Clearest
Aug
44% cloud

Atalaya is city in Ucayali, Peru.

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

Atalaya 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 Atalaya, from 1991–2020 of climate data. The shaded bands show the range most days fall in — 10th to 90th percentile.

Temperatures in Atalaya stay fairly even through the year, without a distinct hot or cool season. The warmest month is September, with an average high of 30°C and low of 21°C; the coolest is June, 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)
Jan2922
Feb2922
Mar2921
Apr2921
May2820
Jun2820
Jul2819
Aug3020
Sep3021
Oct3021
Nov2922
Dec2922

How hot and cold Atalaya 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, Atalaya feels like about 33°C (around October 3). About 116 days a year carry some heat stress, peaking in October.

15°20°25°30°35°JanFebMarAprMayJunJulAugSepOctNovDec
Feels-like high (°C)Air high (°C)Feels-like low (°C)Air low (°C)
Jan32292222
Feb32292122
Mar32292121
Apr32292121
May31282020
Jun30281920
Jul30281919
Aug31302020
Sep33302121
Oct33302121
Nov32292222
Dec32292222

Average hourly temperature in Atalaya

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 30°C, and coldest before dawn in June, near 20°C.

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

Atalaya 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
Jan29° / 22°33529.312.63.0
Feb29° / 22°31726.412.43.0
Mar29° / 21°30828.412.13.1
Apr29° / 21°20022.911.83.7
May28° / 20°10416.511.55.1
Jun28° / 20°7211.311.46.2
Jul28° / 19°519.511.46.5
Aug30° / 20°629.411.65.5
Sep30° / 21°11715.611.94.2
Oct30° / 21°19124.212.23.4
Nov29° / 22°2432512.53.3
Dec29° / 22°31228.712.63.1

Chance of rain

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

Atalaya gets about 2314 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 6.8 months, from around Oct 3 to Apr 28, peaking in January at about 95% chance on a given day. The drier stretch runs the rest of the year, bottoming out around Jul 31.

January is the wettest month by volume, with 335 mm over about 29 wet days; July is the driest, with 51 mm.

0%10%20%30%40%50%60%70%80%90%100%110%JanFebMarAprMayJunJulAugSepOctNovDecwetterdrierwettermostly drysome rainoften wetvery wetJan 10 · 95%Jul 31 · 26%
Rain on a day (%)Rain days
Jan9429
Feb9426
Mar9128
Apr7623
May5417
Jun3811
Jul3010
Aug319
Sep5216
Oct7724
Nov8525
Dec9329

Monthly rainfall

Over a full year, Atalaya collects about 2314 mm of rain across 247 wet days — roughly 193 mm in an average month.

It doesn’t fall evenly. January is the wettest month with 335 mm, while July is the driest at just 51 mm. The three wettest months alone bring about 42% of the year’s total.

050100150200250300350400JanFebMarAprMayJunJulAugSepOctNovDec335317308200104725162117191243312
Rainfall (mm)Rain days
Jan33529
Feb31726
Mar30828
Apr20023
May10417
Jun7211
Jul5110
Aug629
Sep11716
Oct19124
Nov24325
Dec31229

Clouds and sunshine

ClearMostly clearPartly cloudyMostly cloudyOvercast

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

In Atalaya, 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 April 30 and lasts for 5.1 months, ending around October 1. The clearest month is August, when the sky is clear, mostly clear, or partly cloudy 72% of the time on average.

The cloudier part of the year begins around October 2 and lasts for 6.9 months, ending around April 29. The cloudiest month is February, 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%JanFebMarAprMayJunJulAugSepOctNovDecJul 30 · 74%Feb 20 · 7%clearmostly clearpartly cloudymostly cloudyovercastcloudierclearercloudier
Clearer (%)Cloudier (%)
Jan1090
Feb892
Mar1090
Apr2278
May4456
Jun6139
Jul7129
Aug7228
Sep4852
Oct2179
Nov1189
Dec1090

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 36 min of light; the shortest, around May 26, only 11 h 24 min — a swing of roughly 1 h 12 min.

12 AM4 AM8 AM12 PM4 PM8 PM12 AMJanFebMarAprMayJunJulAugSepOctNovDec
Daylight (h)Sunrise (AM)Sunset (PM)
Jan12.65:476:21
Feb12.45:596:20
Mar12.16:026:07
Apr11.86:025:48
May11.56:065:37
Jun11.46:145:37
Jul11.46:185:43
Aug11.66:105:48
Sep11.95:515:48
Oct12.25:335:47
Nov12.55:255:55
Dec12.65:326:10

Sunny days

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

Atalaya averages about 5 sunny days a month — counting the days the sky stays clear or mostly clear — with a clear seasonal swing between 0 and 17 days.

The sunnier stretch runs 4.6 months, from around May 5 to Sep 22. The sunniest month is August, with roughly 15 sunny days (bright).

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

05101520JanFebMarAprMayJunJulAugSepOctNovDecgreyersunniergreyergloomymixedbrightAug 217 daysDec 70 days
Sunny daysSky
Jan0Gloomy
Feb0Gloomy
Mar1Gloomy
Apr2Gloomy
May7Gloomy
Jun11Mixed
Jul15Bright
Aug16Bright
Sep7Gloomy
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.

Atalaya 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 July, the mildest month, the air is dry or comfortable only 3% of the time.

0%10%20%30%40%50%60%70%80%90%100%JanFebMarAprMayJunJulAugSepOctNovDecoppressivemuggyhumid
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
Jan000397
Feb000595
Mar000793
Apr0021682
May0162767
Jun0164845
Jul12106423
Aug0296326
Sep0133858
Oct0011386
Nov000891
Dec000397

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

0510JanFebMarAprMayJunJulAugSepOctNovDeccalmAug 25 · 4 km/hMar 6 · 3 km/h
Wind speed (km/h)Feels
Jan4calm
Feb3calm
Mar3calm
Apr3calm
May3calm
Jun3calm
Jul4calm
Aug4calm
Sep4calm
Oct4calm
Nov4calm
Dec4calm

Hazard calendar for Atalaya

In seasonPeak

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

Atalaya'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 Atalaya

TravelBeach/poolTemperatureCloudsPrecipitation

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

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

0246810JanFebMarAprMayJunJulAugSepOctNovDecbest timetravel scoretemperaturecloudsprecipitationJul 13 · 6.6

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
Jan3.0poor
Feb3.0poor
Mar3.1poor
Apr3.8fair
May5.0fair
Jun6.2good
Jul6.4good
Aug5.5fair
Sep4.2fair
Oct3.5poor
Nov3.3poor
Dec3.1poor

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 Atalaya for hot-weather activities is from late May to mid September, with a peak score in the first week of August.

024681012JanFebMarAprMayJunJulAugSepOctNovDecbest timebeach/pool scoretemperaturecloudsprecipitationAug 2 · 7.6

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 Atalaya, 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.

Atalaya packs about the same all year — highs hold near 30°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, Atalaya sees daytime highs around 30°C and nights near 21°C. Pack light clothes and rain gear. Worth having: sun protection. About 16 days see rain.

UV index (midday) in Atalaya 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 Atalaya peaks around February 10 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near September 12 at about 9 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highExtremeFeb 10UV 15Sep 12UV 9
UV index (midday)Level
Jan15Extreme
Feb16Extreme
Mar15Extreme
Apr11Extreme
May11Extreme
Jun9Very high
Jul9Very high
Aug10Extreme
Sep9Very high
Oct14Extreme
Nov14Extreme
Dec13Extreme

Average hourly UV index in Atalaya

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
Mar8.56.5
Apr7.55.5
May7.55
Jun74.5
Jul74.5
Aug7.55
Sep74.5
Oct86.5
Nov8.56.5
Dec8.56.5

Air quality in Atalaya 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 Atalaya is worst in September — around 36 µg/m³ PM2.5 (poor), about 4.4× the cleanest month (June, 8 µg/m³).

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodModerateGoodSep 1534 µg/m³Jun 98 µg/m³
PM2.5 (µg/m³)Level
Jan12Moderate
Feb14Moderate
Mar13Moderate
Apr11Good
May8Good
Jun8Good
Jul10Good
Aug23Moderate
Sep36Poor
Oct17Moderate
Nov13Moderate
Dec11Good
Almanac & agriculture

Growing season

Chance of a frost-free dayFrost-free year round

Atalaya 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. Atalaya banks about 5,395 degree days a year, and the running total — which growers use to time plantings and predict maturity — climbs fastest around September.

02,0004,000JanFebMarAprMayJunJulAugSepOctNovDec
Growing degree days (°C·days)
Jan469
Feb421
Mar467
Apr447
May440
Jun409
Jul419
Aug453
Sep463
Oct478
Nov457
Dec471

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.

Atalaya 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.

01234567JanFebMarAprMayJunJulAugSepOctNovDecdimmoderatebrightintenseOct 25.5 kWhJun 14.1 kWh
Solar energy (kWh/m²)Level
Jan4.9Bright
Feb4.7Bright
Mar4.7Bright
Apr4.6Bright
May4.3Bright
Jun4.2Bright
Jul4.5Bright
Aug5.2Bright
Sep5.5Bright
Oct5.4Bright
Nov5.0Bright
Dec4.9Bright

Where is Atalaya?

Atalaya sits at 10.7°S, 73.8°W, 232 m above sea level, in Peru. The nearest listed city is San Martín de Pangoa, 111 km away.

Santa RosaHuancayoChilcaJaujaTarmaMarechal Thaumaturgo

Topography around Atalaya

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

Within 3 km, the terrain around Atalaya has significant variations in elevation — a maximum elevation change of 352 m around an average of 255 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 987 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,900 m.

The land around Atalaya is covered by trees (58%) within 3 km, trees (91%) within 16 km, and trees (98%) within 80 km.

3 km
352 m
16 km
987 m
80 km
2,900 m
treesgrasslandartificial surfacesbare terrainwater
Nearby: San Martín de Pangoa 111 km · Satipo 112 km · Santa Rosa 125 km · Huancayo 217 km · Chilca 218 km · Jauja 222 km · Tarma 224 km · Marechal Thaumaturgo 225 km

Peru travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type A / B / C
220 V · 60 Hz
Prices
≈ 51% of US
price level, 2025
GDP per capita
$9,684
2025
Happiness
6.0 / 10
World Happiness, 2025
Safe drinking water
49%
of population, 2024
Homicide rate
8.6
per 100k, 2021
Road deaths
13.6
per 100k/yr, 2019
Income group
Upper middle
World Bank
English
Moderate
EF EPI 519
Religion
Catholic 76%Evangelical Christian 16%no religion 5%other religions 3%

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 Atalaya (-10.7307°, -73.7587°, elevation 232 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).