Climate and average weather in Agrínio

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

Best: late April to late July

Over the course of the year, the temperature in Agrínio typically varies from 6°C to 30°C, and is rarely below 2°C or above 33°C. August is the hottest month of the year, while January is the coldest.

Based on the travel score, the best times of year to visit Agrínio for warm-weather activities are from late April to late July and late August to early November.

Hottest
Aug
30°
Coldest
Jan
Wettest
Nov
181 mm
Driest
Jul
12 mm
Rain / yr
1100 mm
102 wet days
Daylight
9.3–14.7 h
shortest–longest
Elevation
66 m
38.6°N
Clearest
Jul
14% cloud

Agrínio is largest city and capital of the Aetolia-Acarnania regional unit of Greece.

Density
38/km²
people per km²

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

Agrínio 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 late July.

Temperature through the year

Average highAverage lowShaded bands: 10–90% of days

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

The hot season lasts 3.3 months, from June 10 to September 18, with daily high temperatures above 26°C. The hottest month of the year in Agrínio is August, with an average high of 30°C and low of 22°C.

The cool season lasts 3.9 months, from November 27 to March 24, with daily high temperatures below 15°C. The coldest month of the year in Agrínio is January, with an average low of 6°C and high of 12°C.

Days typically run about 7°C warmer than nights, with the widest day–night swing (around 9°C) in August.

10°20°30°JanFebMarAprMayJunJulAugSepOctNovDec
Avg high (°C)Avg low (°C)
Jan126
Feb126
Mar148
Apr1811
May2215
Jun2719
Jul2921
Aug3022
Sep2619
Oct2215
Nov1711
Dec138

Average hourly temperature in Agrínio

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

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

Agrínio 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
Jan12° / 14811.50.59.63.0
Feb12° / 13911.90.510.53.1
Mar14° / 11311.4011.74.3
Apr18° / 11°759.50135.9
May22° / 15°507.8014.17.4
Jun27° / 19°234.3014.68.0
Jul29° / 21°123.2014.46.8
Aug30° / 22°122.7013.56.5
Sep26° / 19°646.5012.37.7
Oct22° / 15°1078.10117.2
Nov17° / 11°18111.509.95.3
Dec13° / 17513.60.29.43.3

Chance of rain

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

Agrínio gets about 1100 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 6.0 months, from around Oct 21 to Apr 22, peaking in December at about 44% chance on a given day. The drier stretch runs the rest of the year, bottoming out around Aug 18.

November is the wettest month by volume, with 181 mm over about 12 wet days; July is the driest, with 12 mm.

0%10%20%30%40%50%JanFebMarAprMayJunJulAugSepOctNovDecwetterdrierwettermostly drysome rainoften wetvery wetDec 10 · 44%Aug 18 · 8%
Rain on a day (%)Rain days
Jan3812
Feb4212
Mar3711
Apr3210
May248
Jun154
Jul103
Aug103
Sep217
Oct278
Nov3812
Dec4314

Monthly rainfall

Over a full year, Agrínio collects about 1100 mm of rain across 102 wet days — roughly 92 mm in an average month.

It doesn’t fall evenly. November is the wettest month with 181 mm, while July is the driest at just 12 mm. The three wettest months alone bring about 46% of the year’s total, and some of the cold-season precipitation falls as snow.

050100150200JanFebMarAprMayJunJulAugSepOctNovDec148139113755023121264107181175
Rainfall (mm)Rain daysSnow days
Jan148121
Feb139121
Mar113110
Apr75100
May5080
Jun2340
Jul1230
Aug1230
Sep6470
Oct10780
Nov181120
Dec175140

Clouds and sunshine

ClearMostly clearPartly cloudyMostly cloudyOvercast

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

In Agrínio, 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 May 2 and lasts for 5.4 months, ending around October 11. The clearest month is July, when the sky is clear, mostly clear, or partly cloudy 98% of the time on average.

The cloudier part of the year begins around October 12 and lasts for 6.6 months, ending around May 1. 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 · 99%Dec 22 · 48%clearmostly clearpartly cloudymostly cloudyovercastcloudierclearercloudier
Clearer (%)Cloudier (%)
Jan5149
Feb5050
Mar5644
Apr6238
May7327
Jun9010
Jul982
Aug982
Sep8515
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 12, brings about 14 h 42 min of light; the shortest, around January 1, only 9 h 18 min — a swing of roughly 5 h 24 min.

12 AM4 AM8 AM12 PM4 PM8 PM12 AMJanFebMarAprMayJunJulAugSepOctNovDec
Daylight (h)Sunrise (AM)Sunset (PM)
Jan9.67:565:31
Feb10.57:346:04
Mar11.76:536:35
Apr13.06:047:05
May14.15:287:33
Jun14.65:147:55
Jul14.45:267:54
Aug13.55:537:24
Sep12.36:216:36
Oct11.06:505:49
Nov9.97:245:15
Dec9.47:515:10

Sunny days

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

Agrínio averages about 17 sunny days a month — counting the days the sky stays clear or mostly clear — with a clear seasonal swing between 10 and 29 days.

The sunnier stretch runs 4.4 months, from around May 24 to Oct 5. The sunniest month is August, with roughly 28 sunny days (brilliant).

The greyest month is March, down near 12 sunny days — about 59% fewer than the August peak.

05101520253035JanFebMarAprMayJunJulAugSepOctNovDecgreyersunniergreyergloomymixedbrightbrilliantAug 1029 daysMar 110 days
Sunny daysSky
Jan12Mixed
Feb10Mixed
Mar12Mixed
Apr13Mixed
May17Bright
Jun23Brilliant
Jul29Brilliant
Aug29Brilliant
Sep21Bright
Oct16Bright
Nov12Mixed
Dec11Mixed

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

The more humid part of the year lasts 4.5 months, from around May 25 to October 9. The muggiest month is August, when the air feels humid, muggy or worse about 93% of the time.

The most comfortable stretch runs from around October 10 to May 24, and January 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%JanFebMarAprMayJunJulAugSepOctNovDecJan 12 · 100%Aug 5 · 3%muggycomfortabledryhumidcomfortablehumidcomfortable
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
Jan1000000
Feb1000000
Mar1000000
Apr937000
May39431710
Jun52047271
Jul0734554
Aug1632574
Sep132345190
Oct40382110
Nov8316100
Dec991000

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 Agrínio is steady company: average speeds sit near 7 km/hcalm — in every month of the year, with no meaningful windy or calm season.

051015JanFebMarAprMayJunJulAugSepOctNovDeccalmlight breezeFeb 5 · 9 km/hJun 29 · 6 km/h
Wind speed (km/h)Feels
Jan9calm
Feb9calm
Mar8calm
Apr7calm
May7calm
Jun6calm
Jul6calm
Aug6calm
Sep6calm
Oct7calm
Nov8calm
Dec9calm

Hazard calendar for Agrínio

In seasonPeak

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

Agrínio's rainy season runs October–March, 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 Agrínio

TravelBeach/poolTemperatureCloudsPrecipitation

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

Around mid July, Agrínio 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 Agrínio for general outdoor tourist activities run from late April to late July and again from late August to early November, with a peak score in the first week of June.

0246810JanFebMarAprMayJunJulAugSepOctNovDecbest timebest timetravel scoretemperaturecloudsprecipitationJun 7 · 8.1

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
Feb3.1poor
Mar4.3fair
Apr5.9good
May7.4good
Jun7.9ideal
Jul6.8good
Aug6.5good
Sep7.7ideal
Oct7.2good
Nov5.3fair
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 time of year to visit Agrínio 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 11 · 9.0

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 Agrínio, 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 August (highs near 30°C), the essentials are light clothes and sun protection. In the cold season around January (highs near 12°C), pack a warm layer and rain gear.

Light clothing
Warm layer
Winter coat
Rain gear
Sun protection
Windbreaker

In August, Agrínio sees daytime highs around 30°C and nights near 22°C. Pack light clothes and sun protection.

Sea temperature near Agrínio

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 28 km away) is warmest in August at about 26°C and coldest in February near 15°C.

It's comfortable for a long swim from May 27 to Nov 19 — about 5.8 months when the water holds above 20°C.

15°20°25°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan16Cool
Feb15Bracing
Mar15Bracing
Apr16Cool
May19Cool
Jun22Refreshing
Jul25Warm
Aug26Warm
Sep25Warm
Oct23Refreshing
Nov20Refreshing
Dec18Cool

UV index (midday) in Agrínio 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 Agrínio peaks around June 21 at about 10 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 22 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 highHighModerateJun 21UV 10Dec 22UV 2
UV index (midday)Level
Jan2Low
Feb3Moderate
Mar5High
Apr7Very high
May7Very high
Jun10Very high
Jul9Very high
Aug9Very high
Sep7High
Oct5Moderate
Nov3Moderate
Dec2Low

Average hourly UV index in Agrínio

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
Mar5.50
Apr73.5
May7.54
Jun8.55.5
Jul8.55.5
Aug85
Sep6.53
Oct4.50
Nov00
Dec00

Air quality in Agrínio 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 Agrínio is worst in April — around 16 µg/m³ PM2.5 (moderate), about 1.9× the cleanest month (December, 9 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodApr 1616 µg/m³Dec 139 µg/m³
PM2.5 (µg/m³)Level
Jan12Good
Feb13Moderate
Mar15Moderate
Apr16Moderate
May15Moderate
Jun12Moderate
Jul13Moderate
Aug15Moderate
Sep10Good
Oct10Good
Nov10Good
Dec9Good
Almanac & agriculture

Growing season

Chance of a frost-free dayFrost-free year round

Agrínio 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
Jan990
Feb990
Mar1000
Apr1000
May1000
Jun1000
Jul1000
Aug1000
Sep1000
Oct1000
Nov1000
Dec990

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. Agrínio banks about 2,533 degree days a year, and the running total — which growers use to time plantings and predict maturity — climbs fastest around August.

01,0002,000JanFebMarAprMayJunJulAugSepOctNovDec
Growing degree days (°C·days)
Jan0
Feb0
Mar37
Apr128
May262
Jun379
Jul474
Aug489
Sep370
Oct258
Nov121
Dec16

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.

Agrínio receives about 4.6 kWh/m² a day of solar energy on average — bright — with a clear seasonal swing between 1.8 and 7.4 kWh/m².

The brighter stretch of the year lasts 6.1 months, from around Mar 23 to Sep 23. The brightest month is July, averaging about 7.3 kWh/m² (intense).

The dimmest month is December, down near 1.9 kWh/m² — roughly 74% less than the July peak.

0123456789JanFebMarAprMayJunJulAugSepOctNovDecdimmerbrighterdimmerdimmoderatebrightintenseJul 17.4 kWhDec 201.8 kWh
Solar energy (kWh/m²)Level
Jan2.2Moderate
Feb3.0Moderate
Mar4.3Bright
Apr5.6Bright
May6.5Intense
Jun7.3Intense
Jul7.3Intense
Aug6.6Intense
Sep5.0Bright
Oct3.6Moderate
Nov2.4Moderate
Dec1.8Dim

Where is Agrínio?

Agrínio sits at 38.6°N, 21.4°E, 66 m above sea level, in Greece. The nearest listed city is Patras, 51 km away.

PatrasPrévezaÁrtaAígioAmaliádaKardítsaLamíaDelphi

Topography around Agrínio

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

Within 3 km, the terrain around Agrínio has significant variations in elevation — a maximum elevation change of 304 m around an average of 93 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,807 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,465 m.

The land around Agrínio is covered by trees (46%) and artificial surfaces (25%) within 3 km, trees (61%) within 16 km, and trees (53%) and water (30%) within 80 km.

3 km
304 m
16 km
1,807 m
80 km
2,465 m
treesshrubsgrasslandcroplandartificial surfaceswaterwetland
Nearby: Patras 51 km · Préveza 68 km · Árta 70 km · Aígio 72 km · Amaliáda 92 km · Kardítsa 94 km · Lamía 94 km · Delphi 96 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 Agrínio (38.6214°, 21.4078°, elevation 66 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).