Climate and average weather in Kórinthos

In Kórinthos, the summers are hot, dry, and clear and the winters are cool and partly cloudy.

Best: mid April to late October

Over the course of the year, the temperature in Kórinthos typically varies from 7°C to 29°C, and is rarely below 3°C or above 32°C. July is the hottest month of the year, while January is the coldest.

Based on the travel score, the best time of year to visit Kórinthos for warm-weather activities is from mid April to late October.

Hottest
Jul
29°
Coldest
Jan
Wettest
Dec
60 mm
Driest
Aug
2 mm
Rain / yr
370 mm
56 wet days
Daylight
9.4–14.6 h
shortest–longest
Elevation
24 m
37.9°N
Clearest
Jul
10% cloud

Kórinthos is seaside city in Peloponnese, Greece.

Density
295/km²
people per km²

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

Kórinthos 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 mid April to late October.

Temperature through the year

Average highAverage lowShaded bands: 10–90% of days

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

The hot season lasts 3.6 months, from June 3 to September 21, with daily high temperatures above 25°C. The hottest month of the year in Kórinthos is July, with an average high of 29°C and low of 23°C.

The cool season lasts 3.8 months, from November 28 to March 23, with daily high temperatures below 15°C. The coldest month of the year in Kórinthos is January, with an average low of 7°C and high of 11°C.

Days typically run about 5°C warmer than nights, with the widest day–night swing (around 7°C) in May.

10°20°30°JanFebMarAprMayJunJulAugSepOctNovDec
Avg high (°C)Avg low (°C)
Jan117
Feb127
Mar149
Apr1812
May2316
Jun2720
Jul2923
Aug2923
Sep2620
Oct2116
Nov1612
Dec129

Average hourly temperature in Kórinthos

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 July afternoons, near 29°C, and coldest before dawn in January, near C.

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

Kórinthos weather by month

Every month at a glance. Click a month for its detailed page.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan11° / 558.20.59.72.9
Feb12° / 498.10.610.53.2
Mar14° / 5370.211.74.6
Apr18° / 12°254.10136.7
May23° / 16°203.70148.2
Jun27° / 20°71.4014.68.4
Jul29° / 23°30.7014.47.4
Aug29° / 23°20.7013.57.4
Sep26° / 20°172.8012.38.5
Oct21° / 16°314.40117.7
Nov16° / 12°486.809.95.7
Dec12° / 608.30.49.43.5

Chance of rain

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

Kórinthos gets about 370 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 5.8 months, from around Oct 18 to Apr 11, peaking in February at about 30% chance on a given day. The drier stretch runs the rest of the year, bottoming out around Jul 16.

December is the wettest month by volume, with 60 mm over about 8 wet days; August is the driest, with 2 mm.

0%10%20%30%40%JanFebMarAprMayJunJulAugSepOctNovDecwetterdrierwettermostly drysome rainoften wetFeb 10 · 30%Jul 16 · 2%
Rain on a day (%)Rain days
Jan278
Feb288
Mar237
Apr144
May114
Jun51
Jul21
Aug21
Sep93
Oct154
Nov237
Dec278

Monthly rainfall

Over a full year, Kórinthos collects about 370 mm of rain across 56 wet days — roughly 31 mm in an average month.

It doesn’t fall evenly. December is the wettest month with 60 mm, while August is the driest at just 2 mm. The three wettest months alone bring about 45% of the year’s total, and some of the cold-season precipitation falls as snow.

0255075JanFebMarAprMayJunJulAugSepOctNovDec554953252073217314860
Rainfall (mm)Rain daysSnow days
Jan5581
Feb4981
Mar5370
Apr2540
May2040
Jun710
Jul310
Aug210
Sep1730
Oct3140
Nov4870
Dec6080

Clouds and sunshine

ClearMostly clearPartly cloudyMostly cloudyOvercast

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

In Kórinthos, 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 24 and lasts for 5.5 months, ending around October 8. The clearest month is July, when the sky is clear, mostly clear, or partly cloudy 99% of the time on average.

The cloudier part of the year begins around October 9 and lasts for 6.5 months, ending around April 23. The cloudiest month is December, 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%JanFebMarAprMayJunJulAugSepOctNovDecAug 7 · 100%Jan 22 · 47%clearmostly clearpartly cloudymostly cloudyovercastcloudierclearercloudier
Clearer (%)Cloudier (%)
Jan5050
Feb5446
Mar6238
Apr6931
May7723
Jun937
Jul991
Aug991
Sep8812
Oct6832
Nov5446
Dec4951

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 June 9, brings about 14 h 36 min of light; the shortest, around January 1, only 9 h 24 min — a swing of roughly 5 h 12 min.

12 AM4 AM8 AM12 PM4 PM8 PM12 AMJanFebMarAprMayJunJulAugSepOctNovDec
Daylight (h)Sunrise (AM)Sunset (PM)
Jan9.77:485:27
Feb10.57:275:59
Mar11.76:476:29
Apr13.05:596:58
May14.05:237:26
Jun14.65:107:47
Jul14.45:227:46
Aug13.55:487:17
Sep12.36:156:30
Oct11.06:435:43
Nov9.97:165:11
Dec9.47:435:06

Sunny days

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

Kórinthos averages about 18 sunny days a month — counting the days the sky stays clear or mostly clear — with a clear seasonal swing between 10 and 30 days.

The sunnier stretch runs 5.0 months, from around May 6 to Oct 5. The sunniest month is July, with roughly 29 sunny days (brilliant).

The greyest month is January, down near 10 sunny days — about 64% fewer than the July peak.

05101520253035JanFebMarAprMayJunJulAugSepOctNovDecgreyersunniergreyergloomymixedbrightbrilliantJul 2930 daysJan 2310 days
Sunny daysSky
Jan11Mixed
Feb10Mixed
Mar14Mixed
Apr15Bright
May19Bright
Jun25Brilliant
Jul30Brilliant
Aug30Brilliant
Sep23Brilliant
Oct16Bright
Nov11Mixed
Dec10Mixed

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

The more humid part of the year lasts 4.3 months, from around June 4 to October 12. The muggiest month is August, when the air feels humid, muggy or worse about 81% of the time.

The most comfortable stretch runs from around October 13 to June 3, and April 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%JanFebMarAprMayJunJulAugSepOctNovDecApr 4 · 100%Aug 5 · 13%muggyhumidcomfortabledrycomfortablehumidcomfortable
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
Jan1000000
Feb1000000
Mar1000000
Apr982000
May6135400
Jun12394280
Jul21947310
Aug31645351
Sep193139110
Oct47321920
Nov7918300
Dec982000

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 Kórinthos is steady company: average speeds sit near 10 km/hcalm — in every month of the year, with no meaningful windy or calm season.

051015JanFebMarAprMayJunJulAugSepOctNovDeccalmlight breezeFeb 7 · 11 km/hMay 26 · 9 km/h
Wind speed (km/h)Feels
Jan11calm
Feb11calm
Mar10calm
Apr9calm
May9calm
Jun10calm
Jul10calm
Aug10calm
Sep10calm
Oct10calm
Nov10calm
Dec11calm

Best time to visit Kórinthos

TravelBeach/poolTemperatureCloudsPrecipitation

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

Around late October, Kórinthos 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 Kórinthos for general outdoor tourist activities is from mid April to late October, with a peak score in the first week of June.

0246810JanFebMarAprMayJunJulAugSepOctNovDecbest timetravel scoretemperaturecloudsprecipitationJun 6 · 8.7

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
Jan2.9poor
Feb3.3poor
Mar4.6fair
Apr6.7good
May8.2ideal
Jun8.4ideal
Jul7.4good
Aug7.5good
Sep8.5ideal
Oct7.7ideal
Nov5.6good
Dec3.6fair

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 Kórinthos for hot-weather activities is from early June to late September, with a peak score in the second week of July.

024681012JanFebMarAprMayJunJulAugSepOctNovDecbest timebeach/pool scoretemperaturecloudsprecipitationJul 14 · 9.5

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 Kórinthos, 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 July (highs near 29°C), the essentials are light clothes and sun protection. In the cold season around January (highs near 11°C), pack a warm layer and rain gear.

Light clothing
Warm layer
Winter coat
Rain gear
Sun protection
Windbreaker

In July, Kórinthos sees daytime highs around 29°C and nights near 23°C. Pack light clothes and sun protection.

Sea temperature near Kórinthos

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 22 km away) is warmest in August at about 26°C and coldest in February near 14°C.

It's comfortable for a long swim from Jun 2 to Nov 11 — about 5.4 months when the water holds above 20°C.

15°20°25°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan15Cool
Feb14Bracing
Mar14Bracing
Apr15Cool
May18Cool
Jun22Refreshing
Jul25Warm
Aug26Warm
Sep25Warm
Oct22Refreshing
Nov20Cool
Dec17Cool

UV index (midday) in Kórinthos 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 Kórinthos peaks around June 22 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near January 10 at about 2 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 9 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highVery highHighModerateJun 22UV 9Jan 10UV 2
UV index (midday)Level
Jan2Low
Feb3Moderate
Mar5Moderate
Apr7Very high
May7High
Jun9Very high
Jul9Very high
Aug9Very high
Sep7High
Oct5Moderate
Nov3Moderate
Dec2Low

Average hourly UV index in Kórinthos

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 June the burn window is concentrated in the middle of the day: about 8.5 hours a day reach index 3 (protection recommended), and 5.5 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)
Jan00
Feb10
Mar50
Apr73.5
May73.5
Jun8.55.5
Jul8.55.5
Aug85
Sep6.53
Oct50
Nov00
Dec00

Air quality in Kórinthos 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 Kórinthos is worst in August — around 21 µg/m³ PM2.5 (moderate), about 2.5× the cleanest month (December, 8 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateModerateGoodAug 1221 µg/m³Dec 149 µg/m³
PM2.5 (µg/m³)Level
Jan11Good
Feb13Moderate
Mar15Moderate
Apr15Moderate
May14Moderate
Jun12Good
Jul18Moderate
Aug21Moderate
Sep11Good
Oct10Good
Nov10Good
Dec8Good
Almanac & agriculture

Growing season

Chance of a frost-free dayFrost-free year round

Kórinthos 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. Kórinthos banks about 2,674 degree days a year, and the running total — which growers use to time plantings and predict maturity — climbs fastest around August.

01,0002,0003,000JanFebMarAprMayJunJulAugSepOctNovDec
Growing degree days (°C·days)
Jan0
Feb1
Mar43
Apr139
May280
Jun404
Jul495
Aug500
Sep390
Oct271
Nov129
Dec22

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.

Kórinthos receives about 4.7 kWh/m² a day of solar energy on average — bright — with a clear seasonal swing between 1.8 and 7.5 kWh/m².

The brighter stretch of the year lasts 6.1 months, from around Mar 23 to Sep 23. The brightest month is June, averaging about 7.4 kWh/m² (intense).

The dimmest month is December, down near 1.9 kWh/m² — roughly 75% less than the June peak.

0123456789JanFebMarAprMayJunJulAugSepOctNovDecdimmerbrighterdimmerdimmoderatebrightintenseJun 267.5 kWhDec 181.8 kWh
Solar energy (kWh/m²)Level
Jan2.2Moderate
Feb3.1Moderate
Mar4.4Bright
Apr5.8Bright
May6.7Intense
Jun7.4Intense
Jul7.3Intense
Aug6.6Intense
Sep5.2Bright
Oct3.6Moderate
Nov2.4Moderate
Dec1.8Dim

Where is Kórinthos?

Kórinthos sits at 37.9°N, 23.0°E, 24 m above sea level, in Greece. The nearest listed city is Mégara, 35 km away.

NafplioSalamínaElefsínaThívaiPéramaLivadeiá

Topography around Kórinthos

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

Within 3 km, the terrain around Kórinthos has only modest variations in elevation — a maximum elevation change of 114 m around an average of 30 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 1,061 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,415 m.

The land around Kórinthos is covered by water (32%), grassland (24%) and artificial surfaces (22%) within 3 km, trees (34%) and water (31%) within 16 km, and trees (33%) and water (31%) within 80 km.

3 km
114 m
16 km
1,061 m
80 km
2,415 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
Nearby: Mégara 35 km · Árgos 39 km · Nafplio 43 km · Salamína 48 km · Elefsína 53 km · Thívai 54 km · Pérama 55 km · Livadeiá 56 km

Greece travel facts

Travel advisory
Level 1
Exercise Normal Precautions
Power plugs
Type C / F
230 V · 50 Hz
Prices
≈ 60% of US
price level, 2025
GDP per capita
$26,948
2025
Happiness
5.7 / 10
World Happiness, 2025
Safe drinking water
97%
of population, 2024
Homicide rate
0.8
per 100k, 2023
Road deaths
8.3
per 100k/yr, 2019
Income group
High
World Bank
English
High
EF EPI 592
Religion
other 3%Muslim 2%

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 Kórinthos (37.9401°, 22.9513°, elevation 24 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. 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).