Alexandroupoli weather in September

In September, Alexandroupoli sees average daytime highs of 26°C and overnight lows near 19°C, with 32 mm of rain across 3.7 wet days and about 12.3 hours of daylight. It is the 4th-warmest and 9th-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 70% of the time in September, and the air most often feels comfortable.

Daylight stretches from about 13 hours at the start of September to 11 h 36 min by month's end. Set against the rest of the year, September is Alexandroupoli's 3rd-clearest and 8th-windiest month. For the whole year in context, see Alexandroupoli's year-round climate.

Daytime high
26°
4th warmest
Overnight low
19°
9th coldest
Rainfall
32 mm
3.7 wet days
Daylight
12 h 18 min
6:03 AM – 6:19 PM
Cloud cover
29%
3rd clearest
Wind
15 km/h
8th windiest
Solar energy
4.9 kWh/m²
Travel score
8.2
out of 10

Alexandroupoli is city in Thrace, Greece.

Density
82/km²
people per km²
Founded
1875

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 Alexandroupoli reaches about 26°C in the afternoon and slips back to 19°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between 22°C and 29°C. Set against its neighbours, September runs about 4°C cooler than August and about 6°C warmer than October.

10°15°20°25°30°35°151015202530
Avg high (°C)Avg low (°C)
12821
22820
32820
42820
52820
62720
72720
82720
92719
102719
112719
122619
132619
142619
152619
162619
172618
182518
192518
202518
212518
222518
232518
242417
252417
262417
272417
282417
292317
302317

Alexandroupoli weather by month

How September compares with the rest of the year at a glance. September is the 4th-warmest and 9th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / 839.51.69.41.8
Feb10° / 788.31.210.42.2
Mar12° / 739.50.611.73.5
Apr16° / 11°477.1013.15.7
May22° / 15°356.8014.27.4
Jun27° / 20°275.5014.97.6
Jul30° / 22°152.8014.66.6
Aug30° / 22°81.8013.66.5
Sep26° / 19°323.7012.38.2
Oct20° / 14°766.5010.97.0
Nov15° / 10°938.50.19.74.6
Dec10° / 10310.41.49.12.4

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 70% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 12% of September, with mostly cloudy or overcast conditions the remaining 18%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
1928
2919
3919
49010
58911
68911
78812
88713
98713
108614
118515
128515
138416
148416
158317
168218
178218
188119
198020
207921
217921
227723
237723
247624
257525
267525
277426
287426
297228
307129

Chance of precipitation in September

Any precipitation

Alexandroupoli gets around 32 mm of rain over 3.7 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 12% and peaks near 19% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%151015202530
Rain chance (%)
18
28
39
49
59
69
79
89
99
1010
1110
1210
1310
1410
1510
1610
1711
1812
1912
2013
2114
2214
2315
2416
2516
2617
2717
2818
2919
3019

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the comfortable band about 31% of days. Sticky, muggy-or-worse air turns up on roughly 12% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1153234171
2173334161
3183333151
4193433140
5203432130
6213532120
7223531120
8223531110
9233531110
10233530110
11243530110
12243530100
13253529100
14263529100
15273429110
16283428110
17293328110
18303227110
19313127110
20323027120
21332926120
22342826120
23352826110
24372725110
25382625110
26392525110
27402525100
28412524100
29412524100
3042252490

Wind in September

Winds average 15 km/h in September.

Across September, daily wind ranges from about 15 km/h on the calmest days to 15 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202530
Wind speed (km/h)Feels
115light breeze
215light breeze
315light breeze
415light breeze
515light breeze
615light breeze
715light breeze
815light breeze
915light breeze
1015light breeze
1115light breeze
1215light breeze
1315light breeze
1415light breeze
1515light breeze
1615light breeze
1715light breeze
1815light breeze
1915light breeze
2015light breeze
2115light breeze
2215light breeze
2315light breeze
2415light breeze
2515light breeze
2615light breeze
2715light breeze
2815light breeze
2915light breeze
3015light breeze

Sunrise & sunset in September

DaylightNight

Daylight runs from about 13 hours 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 84 minutes over September. Sunrise moves from 5:48 AM to 6:17 AM, and sunset from 6:45 PM to 5:54 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
113.05:486:45
212.95:496:43
312.95:506:41
412.85:516:40
512.85:526:38
612.75:536:36
712.75:546:35
812.65:556:33
912.65:566:31
1012.55:576:29
1112.55:586:28
1212.55:596:26
1312.46:006:24
1412.46:016:22
1512.36:026:21
1612.36:036:19
1712.26:046:17
1812.26:056:15
1912.16:066:14
2012.16:076:12
2112.06:086:10
2212.06:096:08
2311.96:106:06
2411.96:116:05
2511.86:126:03
2611.86:136:01
2711.86:145:59
2811.76:155:58
2911.76:165:56
3011.66:175:54

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.9 kWh/m².

For context, solar energy here swings from a low near 1.62 kWh/m² to a high of 7.08 kWh/m² in July across the year — September's 4.9 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
15.7Bright
25.7Bright
35.6Bright
45.5Bright
55.5Bright
65.4Bright
75.4Bright
85.3Bright
95.3Bright
105.2Bright
115.2Bright
125.1Bright
135.1Bright
145.0Bright
155.0Bright
164.9Bright
174.8Bright
184.8Bright
194.7Bright
204.7Bright
214.6Bright
224.5Bright
234.5Bright
244.4Bright
254.4Bright
264.3Bright
274.2Bright
284.2Bright
294.1Bright
304.1Bright
Planning a trip in September

Hazard calendar for Alexandroupoli

In seasonPeak

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

Alexandroupoli's rainy season runs October–April, 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 Alexandroupoli?

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

8.2
Sightseeing
1st-best month of the year
7.7
Beach & pool
3rd-best month of the year

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

What to pack for Alexandroupoli in September

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

In September, Alexandroupoli sees daytime highs around 26°C and nights near 19°C. Worth packing: light clothes and sun protection. About 4 days see rain.

light clothessun protection

Sea temperature near Alexandroupoli in September

The nearest coast averages about 23°C in September — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea offshore is warmest in August at about 25°C and coldest in February near 12°C.

It's comfortable for a long swim from May 29 to Oct 18 — about 4.7 months when the water holds above 20°C.

10°15°20°25°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan12Bracing
Feb12Bracing
Mar12Bracing
Apr14Bracing
May18Cool
Jun23Refreshing
Jul25Warm
Aug25Warm
Sep23Refreshing
Oct20Refreshing
Nov17Cool
Dec14Bracing

UV index in Alexandroupoli in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 6 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Alexandroupoli peaks around June 23 at about 9 (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 8 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateVery highHighModerateLowJun 23UV 9Dec 22UV 2
UV index (midday)Level
Jan2Low
Feb2Moderate
Mar4Moderate
Apr8Very high
May7High
Jun9Very high
Jul9Very high
Aug9Very high
Sep6High
Oct4Moderate
Nov2Moderate
Dec2Low
Location & terrain

Where is Alexandroupoli?

Alexandroupoli sits at 40.8°N, 25.9°E, 19 m above sea level, in Greece. The nearest listed city is Komotiní, 49 km away.

KomotiníKeşanUzunköprüGallipoliMalkaraXánthiÇanakkaleOrestiáda

Topography around Alexandroupoli

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

Within 3 km, the terrain around Alexandroupoli has only modest variations in elevation — a maximum elevation change of 83 m around an average of 14 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 624 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,580 m.

The land around Alexandroupoli is covered by water (38%) and artificial surfaces (24%) within 3 km, water (45%) and trees (30%) within 16 km, and water (39%), trees (27%) and cropland (20%) within 80 km.

3 km
83 m
16 km
624 m
80 km
1,580 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwaterwetland
September weather nearby: Komotiní 49 km · Keşan 64 km · Uzunköprü 82 km · Gallipoli 83 km · Malkara 86 km · Xánthi 89 km · Çanakkale 90 km · Orestiáda 91 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 Alexandroupoli (40.8499°, 25.8764°, elevation 19 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).