Agrínio weather in September

In September, Agrínio sees average daytime highs of 26°C and overnight lows near 19°C, with 64 mm of rain across 6.5 wet days and about 12.3 hours of daylight. It is the 4th-warmest and 8th-wettest month of the year here.

Highs ease over the month, from about 28°C in the first days to 24°C by the end. The sky is clear or mostly clear about 71% of the time in September, and the air most often feels humid.

Daylight stretches from about 12 h 54 min at the start of September to 11 h 36 min by month's end. Set against the rest of the year, September is Agrínio's 4th-clearest and 9th-windiest month. For the whole year in context, see Agrínio's year-round climate.

Daytime high
26°
4th warmest
Overnight low
19°
9th coldest
Rainfall
64 mm
6.5 wet days
Daylight
12 h 12 min
6:21 AM – 6:36 PM
Cloud cover
29%
4th clearest
Wind
6 km/h
9th windiest
Solar energy
5.04 kWh/m²
Travel score
7.7
out of 10

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.

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 28°C in the first days to 24°C by the end.

A typical September day in Agrínio reaches about 26°C in the afternoon and slips back to 19°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 23°C and 30°C. Set against its neighbours, September runs about 4°C cooler than August and about 4°C warmer than October.

10°15°20°25°30°35°151015202530
Avg high (°C)Avg low (°C)
12920
22820
32820
42820
52820
62820
72720
82720
92719
102719
112719
122719
132719
142619
152619
162619
172618
182618
192618
202518
212518
222518
232518
242518
252518
262417
272417
282417
292417
302417

Agrínio weather by month

How September compares with the rest of the year at a glance. September is the 4th-warmest and 8th-wettest month here — the current month is highlighted below.

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

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 71% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 14% of September, with mostly cloudy or overcast conditions the remaining 15%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
1937
2937
3937
4928
5919
69010
79010
89010
98911
108812
118812
128713
138713
148713
158515
168515
178515
188416
198317
208218
218218
228119
238119
247921
257921
267921
277723
287723
297723
307525

Chance of precipitation in September

Any precipitation

Agrínio gets around 64 mm of rain over 6.5 wet days in September. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 21% and peaks near 24% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%151015202530
Rain chance (%)
114
215
316
417
517
618
718
819
919
1020
1120
1221
1321
1421
1522
1622
1723
1823
1923
2023
2124
2224
2324
2423
2523
2623
2723
2823
2923
3023

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

Most of September feels humid — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, September lands in the humid band about 45% of days. Sticky, muggy-or-worse air turns up on roughly 19% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
161540391
261541371
371641351
471742331
581743311
681844301
791845280
891946260
991947240
1092048230
11102049220
12102049210
13102051190
14102151180
15112151170
16112251160
17122350150
18122351140
19132449130
20142549120
21152648120
22162746110
23172845100
2418294490
2519304290
2620314180
2721324070
2821343970
2922353760
3023363650

Wind in September

Winds average 6 km/h in September.

Across September, daily wind ranges from about 6 km/h on the calmest days to 7 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202530
Wind speed (km/h)Feels
16calm
26calm
36calm
46calm
56calm
66calm
76calm
86calm
96calm
106calm
116calm
126calm
136calm
146calm
156calm
166calm
176calm
186calm
196calm
206calm
216calm
226calm
236calm
246calm
256calm
267calm
277calm
287calm
297calm
307calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 12 h 54 min at the start of September to 11 h 36 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 78 minutes over September. Sunrise moves from 6:08 AM to 6:34 AM, and sunset from 7:01 PM to 6:13 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.96:087:01
212.86:096:59
312.86:096:57
412.86:106:56
512.76:116:54
612.76:126:53
712.66:136:51
812.66:146:49
912.56:156:48
1012.56:166:46
1112.56:176:44
1212.46:186:43
1312.46:196:41
1412.36:196:39
1512.36:206:38
1612.26:216:36
1712.26:226:34
1812.26:236:33
1912.16:246:31
2012.16:256:29
2112.06:266:28
2212.06:276:26
2311.96:286:24
2411.96:296:23
2511.96:306:21
2611.86:316:20
2711.86:316:18
2811.76:326:16
2911.76:336:15
3011.66:346:13

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.04 kWh/m².

For context, solar energy here swings from a low near 1.83 kWh/m² to a high of 7.29 kWh/m² in June across the year — September's 5.04 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
15.9Bright
25.8Bright
35.8Bright
45.7Bright
55.6Bright
65.6Bright
75.5Bright
85.5Bright
95.4Bright
105.4Bright
115.3Bright
125.3Bright
135.2Bright
145.1Bright
155.1Bright
165.0Bright
175.0Bright
184.9Bright
194.9Bright
204.8Bright
214.8Bright
224.7Bright
234.6Bright
244.6Bright
254.5Bright
264.5Bright
274.4Bright
284.4Bright
294.3Bright
304.3Bright
Planning a trip in September

Hazard calendar for Agrínio

In seasonPeak

None of Agrínio's seasonal hazards are active in September. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.

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

Is September a good time to visit Agrínio?

Our two travel scores rate September for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

7.7
Sightseeing
2nd-best month of the year
7.5
Beach & pool
4th-best month of the year

September is one of the better times to visit Agrínio for general sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Agrínio in September

From September's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In September, Agrínio sees daytime highs around 26°C and nights near 19°C. Worth packing: light clothes and sun protection. About 7 days see rain.

light clothessun protection

Sea temperature near Agrínio in September

The nearest coast averages about 25°C in September — the other half of the beach question. The full-year curve and swim-comfort zones are below.

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 in Agrínio in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 7 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

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

Air quality in Agrínio in September

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where September falls, not just the annual 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
Location & terrain

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
September weather 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).