Climate and average weather in General Juan Madariaga

In General Juan Madariaga, the summers are warm, showery, and mostly clear and the winters are cool and partly cloudy.

Best: early October to mid May

Over the course of the year, the temperature in General Juan Madariaga typically varies from 5°C to 27°C, and is rarely below 0°C or above 32°C. January is the hottest month of the year, while July is the coldest.

Based on the travel score, the best time of year to visit General Juan Madariaga for warm-weather activities is from early October to mid May.

Hottest
Jan
27°
Coldest
Jul
Wettest
Jan
93 mm
Driest
May
50 mm
Rain / yr
873 mm
92 wet days
Daylight
9.5–14.5 h
shortest–longest
Elevation
5 m
37.0°S
Clearest
Dec
47% cloud

General Juan Madariaga is city in Buenos Aires Province, Argentina.

Founded
1907

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

General Juan Madariaga 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 October to mid May.

Temperature through the year

Average highAverage lowShaded bands: 10–90% of days

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

The hot season lasts 3.8 months, from November 25 to March 21, with daily high temperatures above 23°C. The hottest month of the year in General Juan Madariaga is January, with an average high of 27°C and low of 16°C.

The cool season lasts 3.0 months, from May 28 to August 25, with daily high temperatures below 15°C. The coldest month of the year in General Juan Madariaga is July, with an average low of 5°C and high of 13°C.

Days typically run about 9°C warmer than nights year-round.

10°20°30°JanFebMarAprMayJunJulAugSepOctNovDec
Avg high (°C)Avg low (°C)
Jan2716
Feb2616
Mar2415
Apr2111
May179
Jun146
Jul135
Aug156
Sep167
Oct1910
Nov2212
Dec2615

Average hourly temperature in General Juan Madariaga

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 27°C, and coldest before dawn in July, near C.

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

General Juan Madariaga 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
Jan27° / 16°939.214.36.9
Feb26° / 16°878.513.46.9
Mar24° / 15°768.412.37.3
Apr21° / 11°857.511.16.8
May17° / 506105.9
Jun14° / 565.59.54.4
Jul13° / 555.89.73.9
Aug15° / 626.310.64.8
Sep16° / 66711.75.5
Oct19° / 10°869.7136.2
Nov22° / 12°859.1147.0
Dec26° / 15°748.614.57.2

Chance of rain

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

General Juan Madariaga gets about 873 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 6.6 months, from around Sep 25 to Apr 14, peaking in February at about 33% chance on a given day. The drier stretch runs the rest of the year, bottoming out around Jun 30.

January is the wettest month by volume, with 93 mm over about 9 wet days; May is the driest, with 50 mm.

0%10%20%30%40%JanFebMarAprMayJunJulAugSepOctNovDecwetterdrierwettermostly drysome rainoften wetFeb 3 · 33%Jun 30 · 17%
Rain on a day (%)Rain days
Jan309
Feb309
Mar278
Apr248
May206
Jun196
Jul196
Aug216
Sep247
Oct3010
Nov309
Dec289

Monthly rainfall

Over a full year, General Juan Madariaga collects about 873 mm of rain across 92 wet days — roughly 73 mm in an average month.

It doesn’t fall evenly. January is the wettest month with 93 mm, while May is the driest at just 50 mm. The three wettest months alone bring about 30% of the year’s total.

0255075100125JanFebMarAprMayJunJulAugSepOctNovDec938776855056556266868574
Rainfall (mm)Rain days
Jan939
Feb879
Mar768
Apr858
May506
Jun566
Jul556
Aug626
Sep667
Oct8610
Nov859
Dec749

Clouds and sunshine

ClearMostly clearPartly cloudyMostly cloudyOvercast

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

In General Juan Madariaga, 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 5.4 months, ending around April 11. The clearest month is January, when the sky is clear, mostly clear, or partly cloudy 62% of the time on average.

The cloudier part of the year begins around April 29 and lasts for 6.1 months, ending around October 30. The cloudiest month is July, when it is overcast or mostly cloudy 57% 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 15 · 63%May 25 · 42%clearmostly clearpartly cloudymostly cloudyovercastclearercloudierclearer
Clearer (%)Cloudier (%)
Jan6238
Feb5842
Mar5743
Apr5248
May4654
Jun4357
Jul4357
Aug4654
Sep4555
Oct4753
Nov5644
Dec6139

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 14 h 30 min of light; the shortest, around June 8, only 9 h 30 min — a swing of roughly 5 hours.

12 AM4 AM8 AM12 PM4 PM8 PM12 AMJanFebMarAprMayJunJulAugSepOctNovDec
Daylight (h)Sunrise (AM)Sunset (PM)
Jan14.35:498:06
Feb13.46:217:45
Mar12.36:497:07
Apr11.17:176:20
May10.07:445:46
Jun9.58:055:33
Jul9.78:035:45
Aug10.67:356:10
Sep11.76:506:36
Oct13.06:057:03
Nov14.05:337:34
Dec14.55:298:01

Sunny days

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

General Juan Madariaga averages about 11 sunny days a month — counting the days the sky stays clear or mostly clear — with a clear seasonal swing between 8 and 15 days.

The sunnier stretch runs 5.6 months, from around Nov 5 to Apr 24. The sunniest month is January, with roughly 14 sunny days (mixed).

The greyest month is May, down near 9 sunny days — about 34% fewer than the January peak.

05101520JanFebMarAprMayJunJulAugSepOctNovDecsunniergreyersunniergloomymixedbrightJan 915 daysMay 278 days
Sunny daysSky
Jan14Mixed
Feb11Mixed
Mar13Mixed
Apr11Mixed
May10Mixed
Jun9Mixed
Jul9Mixed
Aug10Mixed
Sep10Mixed
Oct10Mixed
Nov12Mixed
Dec15Mixed

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 General Juan Madariaga, how humid it feels changes dramatically over the year.

The more humid part of the year lasts 4.4 months, from around November 26 to April 8. The muggiest month is January, when the air feels humid, muggy or worse about 53% of the time.

The most comfortable stretch runs from around April 9 to November 25, and July is the most comfortable month — the air is dry or comfortable 100% of the time.

0%10%20%30%40%50%60%70%80%90%100%JanFebMarAprMayJunJulAugSepOctNovDecJul 3 · 100%Jan 29 · 42%muggycomfortablehumiddryhumidcomfortablehumid
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
Jan242328241
Feb241927273
Mar312525171
Apr59261130
May8214400
Jun945100
Jul982000
Aug954000
Sep946100
Oct7719300
Nov57291310
Dec382824100

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 General Juan Madariaga is steady company: average speeds sit near 14 km/hlight breeze — in every month of the year, with no meaningful windy or calm season.

05101520JanFebMarAprMayJunJulAugSepOctNovDeccalmlight breezeDec 5 · 15 km/hMay 14 · 13 km/h
Wind speed (km/h)Feels
Jan15light breeze
Feb14light breeze
Mar14light breeze
Apr13light breeze
May13light breeze
Jun14light breeze
Jul14light breeze
Aug14light breeze
Sep15light breeze
Oct15light breeze
Nov15light breeze
Dec15light breeze

Best time to visit General Juan Madariaga

TravelBeach/poolTemperatureCloudsPrecipitation

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

Around early May, General Juan Madariaga 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 General Juan Madariaga for general outdoor tourist activities is from early October to mid May, with a peak score in the first week of December.

0246810JanFebMarAprMayJunJulAugSepOctNovDecbest timebest timetravel scoretemperaturecloudsprecipitationDec 2 · 7.4

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
Jan6.9good
Feb6.9good
Mar7.3good
Apr6.8good
May5.9good
Jun4.4fair
Jul3.9fair
Aug4.8fair
Sep5.5good
Oct6.2good
Nov7.0good
Dec7.2good

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 General Juan Madariaga for hot-weather activities is from late November to late March, with a peak score in the second week of January.

024681012JanFebMarAprMayJunJulAugSepOctNovDecbest timebest timebeach/pool scoretemperaturecloudsprecipitationJan 13 · 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 General Juan Madariaga, 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 27°C), the essentials are light clothes, rain gear and sun protection. In the cold season around July (highs near 13°C), pack a warm layer.

Light clothing
Warm layer
Winter coat
Rain gear
Sun protection
Windbreaker

In January, General Juan Madariaga sees daytime highs around 27°C and nights near 16°C. Pack sun protection. Worth having: light clothes and rain gear. About 9 days see rain.

Sea temperature near General Juan Madariaga

Average ocean temperature at the nearest coast, month by month, banded into swim-comfort zones — the other half of the beach question.

The sea at the nearest coast (about 27 km away) is warmest in February at about 21°C and coldest in August near 10°C.

It's comfortable for a long swim from Jan 6 to Mar 22 — about 2.5 months when the water holds above 20°C.

10°15°20°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingcomfortable to swim
Sea temperature (°C)Comfort
Jan21Refreshing
Feb21Refreshing
Mar21Refreshing
Apr18Cool
May15Cool
Jun12Bracing
Jul10Bracing
Aug10Bracing
Sep12Bracing
Oct14Bracing
Nov16Cool
Dec19Cool

UV index (midday) in General Juan Madariaga 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 General Juan Madariaga peaks around December 23 at about 12 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 19 at about 2 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 10 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highModerateHighVery highExtremeDec 23UV 12Jun 19UV 2
UV index (midday)Level
Jan12Extreme
Feb11Extreme
Mar9Very high
Apr5High
May3Moderate
Jun2Moderate
Jul3Moderate
Aug3Moderate
Sep5Moderate
Oct7Very high
Nov10Extreme
Dec12Extreme

Average hourly UV index in General Juan Madariaga

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 December 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)
Jan96.5
Feb8.56
Mar74.5
Apr50
May20
Jun00
Jul00
Aug20
Sep50
Oct73.5
Nov8.56
Dec97
Almanac & agriculture

Growing season

Chance of a frost-free dayReliably frost-free (≥90%)

General Juan Madariaga is mild enough that a frost-free day stays more likely than not even in midwinter. Nights are reliably above freezing from about July 30 to July 3 (339 days); outside that window a hard frost is an occasional risk.

0%25%50%75%100%JanFebMarAprMayJunJulAugSepOctNovDecreliably frost-freereliably frost-freeJul 3090%Jul 390%
Frost-free chance (%)Frost nights
Jan1000
Feb1000
Mar1000
Apr1000
May980
Jun930
Jul897
Aug950
Sep980
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. General Juan Madariaga banks about 1,961 degree days a year, and the running total — which growers use to time plantings and predict maturity — climbs fastest around January.

05001,0001,5002,000JanFebMarAprMayJunJulAugSepOctNovDec
Growing degree days (°C·days)
Jan357
Feb310
Mar287
Apr177
May84
Jun4
Jul0
Aug14
Sep56
Oct142
Nov217
Dec313

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.

General Juan Madariaga receives about 4.6 kWh/m² a day of solar energy on average — bright — with a clear seasonal swing between 2.0 and 7.5 kWh/m².

The brighter stretch of the year lasts 5.8 months, from around Sep 25 to Mar 20. The brightest month is December, averaging about 7.4 kWh/m² (intense).

The dimmest month is June, down near 2.0 kWh/m² — roughly 73% less than the December peak.

0123456789JanFebMarAprMayJunJulAugSepOctNovDecbrighterdimmerbrighterdimmoderatebrightintenseDec 217.5 kWhJun 192.0 kWh
Solar energy (kWh/m²)Level
Jan7.2Intense
Feb6.2Intense
Mar4.8Bright
Apr3.5Moderate
May2.5Moderate
Jun2.0Moderate
Jul2.2Moderate
Aug3.1Moderate
Sep4.3Bright
Oct5.5Bright
Nov6.8Intense
Dec7.5Intense

Where is General Juan Madariaga?

General Juan Madariaga sits at 37.0°S, 57.1°W, 5 m above sea level, in Argentina. The nearest listed city is Pinamar, 27 km away.

Topography around General Juan Madariaga

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

Within 3 km, the terrain around General Juan Madariaga has only modest variations in elevation — a maximum elevation change of 14 m around an average of 6 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 22 m; within 80 km, only modest variations in elevation — a maximum elevation change of 45 m.

The land around General Juan Madariaga is covered by grassland (56%) within 3 km, grassland (59%) and wetland (20%) within 16 km, and grassland (53%) and water (27%) within 80 km.

3 km
14 m
16 km
22 m
80 km
45 m
treesgrasslandcroplandartificial surfacesbare terrainwaterwetland
Nearby: Pinamar 27 km · Villa Gesell 33 km · Mar de Ajó 50 km · Mar del Tuyú 62 km · Santa Teresita 65 km · Dolores 90 km · Santa Clara del Mar 98 km · Mar del Plata 117 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 General Juan Madariaga (-37.002°, -57.1358°, elevation 5 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. Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. 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).