Climate and average weather in Concepción

In Concepción, the summers are muggy, sweltering, showery, and partly cloudy and the winters are warm and mostly clear.

Best: late April to early September

Over the course of the year, the temperature in Concepción typically varies from 14°C to 33°C, and is rarely below 6°C or above 37°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 Concepción for warm-weather activities is from late April to early September.

Hottest
Jan
33°
Coldest
Jul
14°
Wettest
Nov
179 mm
Driest
Aug
66 mm
Rain / yr
1549 mm
124 wet days
Daylight
10.6–13.4 h
shortest–longest
Elevation
78 m
23.4°S
Clearest
Aug
40% cloud

Concepción is city and department capital of Concepcion, Paraguay.

Density
44/km²
people per km²
Founded
1787

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

Concepción 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 April to early September.

Temperature through the year

Average highAverage lowShaded bands: 10–90% of days

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

The hot season lasts 4.6 months, from November 7 to March 27, with daily high temperatures above 31°C. The hottest month of the year in Concepción is January, with an average high of 33°C and low of 24°C.

The cool season lasts 2.7 months, from May 13 to August 3, with daily high temperatures below 26°C. The coldest month of the year in Concepción is July, with an average low of 14°C and high of 25°C.

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

10°20°30°40°JanFebMarAprMayJunJulAugSepOctNovDec
Avg high (°C)Avg low (°C)
Jan3324
Feb3323
Mar3222
Apr3020
May2617
Jun2516
Jul2514
Aug2716
Sep2918
Oct3121
Nov3121
Dec3323

How hot and cold Concepción 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, Concepción feels like about 37°C (around January 6). About 175 days a year carry some heat stress, peaking in January.

10°15°20°25°30°35°40°JanFebMarAprMayJunJulAugSepOctNovDecdangerous heat
Feels-like high (°C)Air high (°C)Feels-like low (°C)Air low (°C)
Jan37332424
Feb36332323
Mar35322222
Apr31302020
May26261717
Jun25251616
Jul25251414
Aug27271616
Sep29291818
Oct32312121
Nov33312121
Dec36332323

Average hourly temperature in Concepción

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 33°C, and coldest before dawn in July, near 14°C.

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

Concepción 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
Jan33° / 24°14813.513.33.1
Feb33° / 23°13612.912.83.4
Mar32° / 22°12911.512.24.0
Apr30° / 20°1318.611.55.5
May26° / 17°1429.510.96.9
Jun25° / 16°928.110.67.3
Jul25° / 14°706.810.77.7
Aug27° / 16°666.411.27.2
Sep29° / 18°1038.411.95.8
Oct31° / 21°17712.112.54.4
Nov31° / 21°17911.913.14.1
Dec33° / 23°17614.513.43.4

Chance of rain

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

Concepción gets about 1549 mm of precipitation a year. On a typical day the chance of rain is often wet, but that rises and falls sharply with the seasons.

The wetter season lasts 5.9 months, from around Sep 26 to Mar 24, peaking in December at about 47% chance on a given day. The drier stretch runs the rest of the year, bottoming out around Aug 2.

November is the wettest month by volume, with 179 mm over about 12 wet days; August is the driest, with 66 mm.

0%10%20%30%40%50%60%JanFebMarAprMayJunJulAugSepOctNovDecwetterdrierwettermostly drysome rainoften wetvery wetDec 7 · 47%Aug 2 · 19%
Rain on a day (%)Rain days
Jan4414
Feb4513
Mar3712
Apr299
May3010
Jun288
Jul227
Aug206
Sep288
Oct3912
Nov4012
Dec4615

Monthly rainfall

Over a full year, Concepción collects about 1549 mm of rain across 124 wet days — roughly 129 mm in an average month.

It doesn’t fall evenly. November is the wettest month with 179 mm, while August is the driest at just 66 mm. The three wettest months alone bring about 34% of the year’s total.

050100150200JanFebMarAprMayJunJulAugSepOctNovDec148136129131142927066103177179176
Rainfall (mm)Rain days
Jan14814
Feb13613
Mar12912
Apr1319
May14210
Jun928
Jul707
Aug666
Sep1038
Oct17712
Nov17912
Dec17615

Clouds and sunshine

ClearMostly clearPartly cloudyMostly cloudyOvercast

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

In Concepción, 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 July 4 and lasts for 2.8 months, ending around September 27. The clearest month is August, when the sky is clear, mostly clear, or partly cloudy 66% of the time on average.

The cloudier part of the year begins around September 28 and lasts for 5.3 months, ending around March 7. The cloudiest month is February, when it is overcast or mostly cloudy 47% 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%JanFebMarAprMayJunJulAugSepOctNovDecAug 28 · 69%Feb 18 · 51%clearmostly clearpartly cloudymostly cloudyovercastcloudierclearercloudier
Clearer (%)Cloudier (%)
Jan5446
Feb5347
Mar5842
Apr6040
May5347
Jun5446
Jul6040
Aug6634
Sep6337
Oct5446
Nov5446
Dec5446

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 13 h 24 min of light; the shortest, around June 3, only 10 h 36 min — a swing of roughly 2 h 48 min.

12 AM4 AM8 AM12 PM4 PM8 PM12 AMJanFebMarAprMayJunJulAugSepOctNovDec
Daylight (h)Sunrise (AM)Sunset (PM)
Jan13.36:207:38
Feb12.86:407:29
Mar12.26:547:04
Apr11.57:066:34
May10.97:206:12
Jun10.67:336:07
Jul10.77:356:16
Aug11.27:186:29
Sep11.96:486:40
Oct12.56:186:51
Nov13.16:017:09
Dec13.46:037:29

Sunny days

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

Concepción averages about 13 sunny days a month — counting the days the sky stays clear or mostly clear — with a clear seasonal swing between 11 and 18 days.

The sunnier stretch runs 3.1 months, from around Jun 30 to Sep 30. The sunniest month is August, with roughly 17 sunny days (bright).

The greyest month is February, down near 11 sunny days — about 34% fewer than the August peak.

0510152025JanFebMarAprMayJunJulAugSepOctNovDecgreyersunniergreyergloomymixedbrightbrilliantAug 2718 daysFeb 1711 days
Sunny daysSky
Jan12Mixed
Feb11Mixed
Mar14Mixed
Apr14Mixed
May13Mixed
Jun12Mixed
Jul16Bright
Aug18Bright
Sep16Bright
Oct12Mixed
Nov12Mixed
Dec12Mixed

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 Concepción, how humid it feels changes dramatically over the year.

The more humid part of the year lasts 6.9 months, from around October 5 to May 1. The muggiest month is January, when the air feels humid, muggy or worse about 98% of the time.

The most comfortable stretch runs from around May 2 to October 4, and July is the most comfortable month — the air is dry or comfortable 67% of the time.

0%10%20%30%40%50%60%70%80%90%100%JanFebMarAprMayJunJulAugSepOctNovDecJul 26 · 74%Jan 1 · 1%miserablehumidcomfortableoppressivemuggydryhumidcomfortablehumid
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
Jan025196213
Feb02619659
Mar131026565
Apr8101631351
May2120242780
Jun2821311910
Jul422525800
Aug422724700
Sep2723291930
Oct7122137230
Nov391728421
Dec12824596

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.

Across the year, average wind speed in Concepción is typically calm, near 12 km/h, and varies little with the seasons.

The windier part of the year lasts 5.7 months, from around May 29 to Nov 18. The windiest month is September, averaging about 13 km/h (light breeze).

The calmer part of the year runs from around Nov 19 to May 28, with March the calmest month at about 10 km/h.

05101520JanFebMarAprMayJunJulAugSepOctNovDeccalmerwindiercalmercalmlight breezeSep 5 · 14 km/hMar 17 · 10 km/h
Wind speed (km/h)Feels
Jan10calm
Feb10calm
Mar10calm
Apr11calm
May11calm
Jun12light breeze
Jul13light breeze
Aug13light breeze
Sep13light breeze
Oct13light breeze
Nov12calm
Dec11calm

Best time to visit Concepción

TravelBeach/poolTemperatureCloudsPrecipitation

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

Around early May, Concepción 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 Concepción for general outdoor tourist activities is from late April to early September, with a peak score in the second week of July.

0246810JanFebMarAprMayJunJulAugSepOctNovDecbest timetravel scoretemperaturecloudsprecipitationJul 14 · 7.7

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
Jan3.1poor
Feb3.4poor
Mar4.0fair
Apr5.5good
May6.9good
Jun7.3good
Jul7.7ideal
Aug7.2good
Sep5.8good
Oct4.5fair
Nov4.1fair
Dec3.4poor

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 Concepción for hot-weather activities run from mid March to late May and again from early June to late October, with a peak score in the first week of September.

024681012JanFebMarAprMayJunJulAugSepOctNovDecbest timebest timebeach/pool scoretemperaturecloudsprecipitationSep 1 · 7.9

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 Concepción, 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 33°C), the essentials are light clothes, rain gear and sun protection. In the cold season around July (highs near 25°C), pack light clothes.

Light clothing
Warm layer
Winter coat
Rain gear
Sun protection
Windbreaker

In January, Concepción sees daytime highs around 33°C and nights near 24°C. Pack light clothes and sun protection. Worth having: rain gear. About 14 days see rain.

UV index (midday) in Concepción 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 Concepción peaks around January 18 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 12 at about 5 (high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highHighVery highExtremeJan 18UV 15Jul 12UV 5
UV index (midday)Level
Jan15Extreme
Feb14Extreme
Mar13Extreme
Apr9Very high
May7High
Jun6High
Jul5High
Aug7High
Sep7High
Oct9Very high
Nov13Extreme
Dec13Extreme

Average hourly UV index in Concepción

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 7.5 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)
Jan97.5
Feb8.57
Mar86
Apr74.5
May62
Jun50
Jul50
Aug5.52
Sep6.53
Oct7.55
Nov8.56.5
Dec97

Air quality in Concepción 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 Concepción is worst in September — around 38 µg/m³ PM2.5 (poor), about 5.6× the cleanest month (April, 7 µg/m³).

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateModerateGoodSep 1437 µg/m³Apr 197 µg/m³
PM2.5 (µg/m³)Level
Jan11Good
Feb10Good
Mar9Good
Apr7Good
May8Good
Jun9Good
Jul15Moderate
Aug32Moderate
Sep38Poor
Oct26Moderate
Nov17Moderate
Dec9Good
Almanac & agriculture

Growing season

Chance of a frost-free dayFrost-free year round

Concepción 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. Concepción banks about 5,290 degree days a year, and the running total — which growers use to time plantings and predict maturity — climbs fastest around January.

02,0004,000JanFebMarAprMayJunJulAugSepOctNovDec
Growing degree days (°C·days)
Jan573
Feb504
Mar530
Apr444
May349
Jun304
Jul294
Aug358
Sep407
Oct484
Nov491
Dec551

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.

Concepción receives about 5.0 kWh/m² a day of solar energy on average — bright — with a clear seasonal swing between 3.0 and 6.7 kWh/m².

The brighter stretch of the year lasts 6.5 months, from around Sep 12 to Mar 29. The brightest month is December, averaging about 6.6 kWh/m² (intense).

The dimmest month is June, down near 3.0 kWh/m² — roughly 55% less than the December peak.

012345678JanFebMarAprMayJunJulAugSepOctNovDecbrighterdimmerbrighterdimmoderatebrightintenseDec 216.7 kWhJun 223.0 kWh
Solar energy (kWh/m²)Level
Jan6.6Intense
Feb6.0Bright
Mar5.4Bright
Apr4.5Bright
May3.4Moderate
Jun3.0Moderate
Jul3.3Moderate
Aug4.2Bright
Sep5.0Bright
Oct5.6Bright
Nov6.2Intense
Dec6.6Intense

Where is Concepción?

Concepción sits at 23.4°S, 57.4°W, 78 m above sea level, in Paraguay. The nearest listed city is Yby Yaú, 103 km away.

Yby YaúBela VistaVilla HayesLimpioPedro Juan CaballeroPonta PorãMariano Roque AlonsoAsuncion

Topography around Concepción

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

Within 3 km, the terrain around Concepción has only modest variations in elevation — a maximum elevation change of 26 m around an average of 77 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 96 m; within 80 km, significant variations in elevation — a maximum elevation change of 327 m.

The land around Concepción is covered by grassland (33%), trees (30%) and artificial surfaces (29%) within 3 km, trees (45%) and grassland (45%) within 16 km, and grassland (47%) and trees (45%) within 80 km.

3 km
26 m
16 km
96 m
80 km
327 m
treesshrubsgrasslandcroplandartificial surfaceswaterwetland
Nearby: Yby Yaú 103 km · Bela Vista 171 km · Villa Hayes 189 km · Limpio 196 km · Pedro Juan Caballero 198 km · Ponta Porã 199 km · Mariano Roque Alonso 201 km · Asuncion 211 km

Paraguay travel facts

Travel advisory
Level 1
Exercise Normal Precautions
Power plugs
Type A / B / C / N
220 V · 50 Hz
Prices
≈ 35% of US
price level, 2025
GDP per capita
$7,027
2025
Happiness
6.2 / 10
World Happiness, 2025
Safe drinking water
64%
of population, 2024
Homicide rate
6.8
per 100k, 2023
Road deaths
22
per 100k/yr, 2019
Income group
Upper middle
World Bank
English
Moderate
EF EPI 531
Religion
Roman Catholic 80%Protestant 7%Believer 6%other 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 Concepción (-23.3999°, -57.4324°, elevation 78 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).