Climate and average weather in Pérez

In Pérez, the summers are hot, showery, and mostly clear and the winters are mild and partly cloudy.

Best: late July to mid December

Over the course of the year, the temperature in Pérez typically varies from 6°C to 30°C, and is rarely below 1°C or above 34°C. January is the hottest month of the year, while July is the coldest.

Based on the travel score, the best times of year to visit Pérez for warm-weather activities are from mid February to mid June and late July to mid December.

Hottest
Jan
30°
Coldest
Jul
Wettest
Mar
126 mm
Driest
Jul
36 mm
Rain / yr
1028 mm
85 wet days
Daylight
9.8–14.2 h
shortest–longest
Elevation
37 m
33.0°S
Clearest
Jan
43% cloud

Pérez is city in Argentina.

Density
365/km²
people per km²

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

Pérez 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 July to mid December.

Temperature through the year

Average highAverage lowShaded bands: 10–90% of days

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

The hot season lasts 4.2 months, from November 13 to March 20, with daily high temperatures above 26°C. The hottest month of the year in Pérez is January, with an average high of 30°C and low of 19°C.

The cool season lasts 2.8 months, from May 24 to August 15, with daily high temperatures below 18°C. The coldest month of the year in Pérez is July, with an average low of 6°C and high of 16°C.

Days typically run about 10°C warmer than nights year-round.

10°20°30°JanFebMarAprMayJunJulAugSepOctNovDec
Avg high (°C)Avg low (°C)
Jan3019
Feb2918
Mar2717
Apr2313
May1910
Jun167
Jul166
Aug188
Sep2110
Oct2413
Nov2615
Dec2918

Average hourly temperature in Pérez

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 January afternoons, near 30°C, and coldest before dawn in July, near C.

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

Pérez 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° / 19°1028.113.95.5
Feb29° / 18°1118.513.26.0
Mar27° / 17°1267.612.37.1
Apr23° / 13°1037.911.27.4
May19° / 10°66610.36.8
Jun16° / 404.69.95.9
Jul16° / 365105.6
Aug18° / 534.610.86.9
Sep21° / 10°615.811.87.2
Oct24° / 13°1119.712.87.1
Nov26° / 15°1158.313.77.1
Dec29° / 18°1048.614.16.0

Chance of rain

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

Pérez gets about 1028 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 7.2 months, from around Sep 28 to May 3, peaking in February at about 30% chance on a given day. The drier stretch runs the rest of the year, bottoming out around Aug 11.

March is the wettest month by volume, with 126 mm over about 8 wet days; July is the driest, with 36 mm.

0%10%20%30%40%JanFebMarAprMayJunJulAugSepOctNovDecwetterdrierwettermostly drysome rainoften wetFeb 7 · 30%Aug 11 · 14%
Rain on a day (%)Rain days
Jan278
Feb309
Mar258
Apr258
May196
Jun165
Jul155
Aug165
Sep206
Oct2910
Nov288
Dec289

Monthly rainfall

Over a full year, Pérez collects about 1028 mm of rain across 85 wet days — roughly 86 mm in an average month.

It doesn’t fall evenly. March is the wettest month with 126 mm, while July is the driest at just 36 mm. The three wettest months alone bring about 34% of the year’s total.

0255075100125150JanFebMarAprMayJunJulAugSepOctNovDec1021111261036640365361111115104
Rainfall (mm)Rain days
Jan1028
Feb1119
Mar1268
Apr1038
May666
Jun405
Jul365
Aug535
Sep616
Oct11110
Nov1158
Dec1049

Clouds and sunshine

ClearMostly clearPartly cloudyMostly cloudyOvercast

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

In Pérez, the average share of the sky covered by clouds shows moderate seasonal variation over the course of the year.

The clearer part of the year begins around October 31 and lasts for 5.1 months, ending around April 4. The clearest month is January, when the sky is clear, mostly clear, or partly cloudy 65% of the time on average.

The cloudier part of the year begins around April 5 and lasts for 3.8 months, ending around July 28. The cloudiest month is June, when it is overcast or mostly cloudy 51% 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%JanFebMarAprMayJunJulAugSepOctNovDecJan 18 · 68%May 22 · 47%clearmostly clearpartly cloudymostly cloudyovercastclearercloudierclearer
Clearer (%)Cloudier (%)
Jan6535
Feb6436
Mar6436
Apr5842
May5050
Jun4951
Jul5644
Aug6337
Sep6139
Oct5644
Nov6139
Dec6436

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 December 13, brings about 14 h 12 min of light; the shortest, around June 14, only 9 h 48 min — a swing of roughly 4 h 24 min.

12 AM4 AM8 AM12 PM4 PM8 PM12 AMJanFebMarAprMayJunJulAugSepOctNovDec
Daylight (h)Sunrise (AM)Sunset (PM)
Jan13.96:148:11
Feb13.26:417:54
Mar12.37:057:20
Apr11.27:286:39
May10.37:506:08
Jun9.98:085:58
Jul10.08:086:09
Aug10.87:446:30
Sep11.87:036:51
Oct12.86:237:13
Nov13.75:567:40
Dec14.15:548:04

Sunny days

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

Pérez averages about 14 sunny days a month — counting the days the sky stays clear or mostly clear — with a clear seasonal swing between 10 and 16 days.

The sunnier stretch runs 2.1 months, from around Jul 23 to Sep 25. The sunniest month is August, with roughly 16 sunny days (bright).

The greyest month is May, down near 11 sunny days — about 27% fewer than the August peak.

05101520JanFebMarAprMayJunJulAugSepOctNovDecgreyersunniergreyergloomymixedbrightAug 1516 daysMay 2210 days
Sunny daysSky
Jan15Bright
Feb13Mixed
Mar15Bright
Apr14Mixed
May12Mixed
Jun11Mixed
Jul14Mixed
Aug16Bright
Sep15Mixed
Oct13Mixed
Nov14Mixed
Dec15Bright

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.

In Pérez, how humid it feels changes dramatically over the year.

The more humid part of the year lasts 4.9 months, from around November 17 to April 13. The muggiest month is January, when the air feels humid, muggy or worse about 75% of the time.

The most comfortable stretch runs from around April 14 to November 16, and July is the most comfortable month — the air is dry or comfortable 98% of the time.

0%10%20%30%40%50%60%70%80%90%100%JanFebMarAprMayJunJulAugSepOctNovDecJul 16 · 99%Jan 25 · 23%oppressivemuggyhumidcomfortabledryhumidcomfortablehumid
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
Jan9162832141
Feb10162733141
Mar1723292471
Apr4426191010
May691711300
Jun8495100
Jul8992000
Aug8794000
Sep81126100
Oct602115400
Nov383024700
Dec1924312060

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 Pérez is steady company: average speeds sit near 11 km/hcalm — in every month of the year, with no meaningful windy or calm season.

05101520JanFebMarAprMayJunJulAugSepOctNovDeccalmlight breezeOct 2 · 13 km/hFeb 24 · 10 km/h
Wind speed (km/h)Feels
Jan10calm
Feb10calm
Mar10calm
Apr11calm
May11calm
Jun11calm
Jul11calm
Aug12light breeze
Sep13light breeze
Oct13light breeze
Nov12light breeze
Dec11calm

Best time to visit Pérez

TravelBeach/poolTemperatureCloudsPrecipitation

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

Around early December, Pérez 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 times of year to visit Pérez for general outdoor tourist activities run from mid February to mid June and again from late July to mid December, with a peak score in the second week of April.

0246810JanFebMarAprMayJunJulAugSepOctNovDecbest timebest timetravel scoretemperaturecloudsprecipitationApr 13 · 7.5

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
Jan5.5good
Feb6.0good
Mar7.1good
Apr7.4good
May6.8good
Jun5.9good
Jul5.7good
Aug6.9good
Sep7.2good
Oct7.2good
Nov7.0good
Dec6.0good

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 Pérez for hot-weather activities is from mid October to mid April, with a peak score in the last week of January.

024681012JanFebMarAprMayJunJulAugSepOctNovDecbest timebest timebeach/pool scoretemperaturecloudsprecipitationJan 22 · 7.5

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 Pérez, 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.

For a warm-season trip around January (highs near 30°C), the essentials are light clothes, rain gear and sun protection. In the cold season around July (highs near 16°C), pack a warm layer.

Light clothing
Warm layer
Winter coat
Rain gear
Sun protection
Windbreaker

In January, Pérez sees daytime highs around 30°C and nights near 19°C. Pack light clothes and sun protection. Worth having: rain gear. About 8 days see rain.

UV index (midday) in Pérez 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 Pérez peaks around January 15 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 21 at about 3 (moderate).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highModerateHighVery highExtremeJan 15UV 13Jun 21UV 3
UV index (midday)Level
Jan13Extreme
Feb12Extreme
Mar10Extreme
Apr6High
May4Moderate
Jun3Moderate
Jul3Moderate
Aug4Moderate
Sep6High
Oct9Very high
Nov11Extreme
Dec12Extreme

Average hourly UV index in Pérez

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 9 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)
Jan97
Feb8.56.5
Mar7.55.5
Apr62
May3.50
Jun10
Jul20
Aug40
Sep62
Oct7.54.5
Nov8.56
Dec97

Air quality in Pérez 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 Pérez is worst in August — around 20 µg/m³ PM2.5 (moderate), about 3.0× the cleanest month (April, 7 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodAug 2220 µg/m³Apr 157 µg/m³
PM2.5 (µg/m³)Level
Jan9Good
Feb8Good
Mar8Good
Apr7Good
May8Good
Jun10Good
Jul13Moderate
Aug20Moderate
Sep19Moderate
Oct10Good
Nov8Good
Dec8Good
Almanac & agriculture

Growing season

Chance of a frost-free day

Pérez is mild enough that a frost-free day stays more likely than not even in midwinter.

0%25%50%75%100%JanFebMarAprMayJunJulAugSepOctNovDec
Frost-free chance (%)Frost nights
Jan1000
Feb1000
Mar1000
Apr1000
May990
Jun950
Jul910
Aug960
Sep990
Oct1000
Nov1000
Dec1000

Growing degree days

Degree days (base 10°C)

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. Pérez banks about 2,898 degree days a year, and the running total — which growers use to time plantings and predict maturity — climbs fastest around January.

01,0002,0003,000JanFebMarAprMayJunJulAugSepOctNovDec
Growing degree days (°C·days)
Jan447
Feb378
Mar361
Apr247
May149
Jun56
Jul30
Aug90
Sep155
Oct251
Nov325
Dec410

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.

Pérez receives about 4.9 kWh/m² a day of solar energy on average — bright — with a clear seasonal swing between 2.3 and 7.3 kWh/m².

The brighter stretch of the year lasts 6.1 months, from around Sep 17 to Mar 21. The brightest month is December, averaging about 7.3 kWh/m² (intense).

The dimmest month is June, down near 2.4 kWh/m² — roughly 67% less than the December peak.

012345678JanFebMarAprMayJunJulAugSepOctNovDecbrighterdimmerbrighterdimmoderatebrightintenseDec 117.3 kWhJun 172.3 kWh
Solar energy (kWh/m²)Level
Jan7.2Intense
Feb6.3Intense
Mar5.1Bright
Apr3.7Moderate
May2.8Moderate
Jun2.4Moderate
Jul2.7Moderate
Aug3.7Moderate
Sep4.8Bright
Oct5.7Bright
Nov6.9Intense
Dec7.3Intense

Where is Pérez?

Pérez sits at 33.0°S, 60.8°W, 37 m above sea level, in Argentina. The nearest listed city is Gobernador Gálvez, 12 km away.

Topography around Pérez

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

Within 3 km, the terrain around Pérez has only modest variations in elevation — a maximum elevation change of 29 m around an average of 34 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 65 m; within 80 km, only modest variations in elevation — a maximum elevation change of 121 m.

The land around Pérez is covered by cropland (59%) within 3 km, cropland (52%) and artificial surfaces (20%) within 16 km, and cropland (63%) and wetland (22%) within 80 km.

3 km
29 m
16 km
65 m
80 km
121 m
treesgrasslandcroplandartificial surfaceswaterwetland
Nearby: Gobernador Gálvez 12 km · Rosario 13 km · Granadero Baigorria 16 km · Capitán Bermúdez 20 km · Arroyo Seco 29 km · Casilda 37 km · Carcarañá 39 km · Villa Constitución 48 km

Argentina travel facts

Travel advisory
Level 1
Exercise Normal Precautions
Power plugs
Type C / I
220 V · 50 Hz
Prices
≈ 46% of US
price level, 2025
GDP per capita
$14,898
2025
Happiness
6.4 / 10
World Happiness, 2025
Homicide rate
4.5
per 100k, 2023
Road deaths
14.1
per 100k/yr, 2019
Income group
Upper middle
World Bank
English
High
EF EPI 575
Religion
Roman Catholic 63%none 19%Evangelical 15%Jehovah's Witness and Church of Jesus Christ 1%

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 Pérez (-32.9984°, -60.7679°, elevation 37 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).