Glyfáda weather in September

In September, Glyfáda sees average daytime highs of 27°C and overnight lows near 22°C, with 11 mm of rain across 1.8 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 25°C by the end. The sky is clear or mostly clear about 81% 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 42 min by month's end. Set against the rest of the year, September is Glyfáda's 4th-clearest and 9th-windiest month. For the whole year in context, see Glyfáda's year-round climate.

Daytime high
27°
4th warmest
Overnight low
22°
10th coldest
Rainfall
11 mm
1.8 wet days
Daylight
12 h 12 min
6:12 AM – 6:26 PM
Cloud cover
20%
4th clearest
Wind
13 km/h
9th windiest
Solar energy
5.3 kWh/m²
Travel score
8.5
out of 10

Glyfáda is southern suburb of Athens, Greece.

Density
3,441/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 25°C by the end.

A typical September day in Glyfáda reaches about 27°C in the afternoon and slips back to 22°C overnight — a 5°C spread between the day's warmth and the night's chill. On most days the high lands between 24°C and 29°C. Set against its neighbours, September runs about 3°C cooler than August and about 4°C warmer than October.

15°20°25°30°35°151015202530
Avg high (°C)Avg low (°C)
12923
22923
32823
42823
52823
62823
72823
82823
92822
102822
112722
122722
132722
142722
152722
162722
172722
182722
192621
202621
212621
222621
232621
242621
252621
262521
272521
282520
292520
302520

Glyfáda 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 daysDaylight (hours)Travel score
Jan13° / 10°5179.73.9
Feb13° / 10°426.610.54.2
Mar15° / 11°445.411.75.4
Apr18° / 14°193.6137.1
May23° / 17°112.6148.4
Jun27° / 22°41.214.68.5
Jul30° / 24°20.614.47.1
Aug30° / 25°10.413.57.0
Sep27° / 22°111.812.38.5
Oct23° / 18°263118.3
Nov18° / 15°475.9106.6
Dec14° / 11°617.59.44.6

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 81% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 10% of September, with mostly cloudy or overcast conditions the remaining 8%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
1982
2982
3973
4973
5973
6973
7973
8955
9955
10955
11955
12946
13946
14937
15928
16928
17919
18919
199010
208911
218911
228812
238812
248713
258614
268614
278515
288515
298416
308317

Chance of precipitation in September

Any precipitation

Glyfáda gets around 11 mm of rain over 1.8 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 6% and peaks near 8% on the wettest days.

0%10%20%30%151015202530
Rain chance (%)
12
22
33
43
53
64
74
84
94
105
115
125
136
146
156
166
177
187
197
207
217
227
237
248
257
267
277
287
297
307

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 35% of days. Sticky, muggy-or-worse air turns up on roughly 27% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
162035319
272035298
382036288
482137277
592137267
692238256
7102238246
8102338245
9102339235
10102439234
11102539224
12102539223
13112639223
14112638223
15112638223
16122737223
17122736222
18132735232
19142734232
20152733232
21162732232
22172732232
23182731232
24192730232
25202730231
26212729221
27212728221
28222728211
29232828211
30232828201

Wind in September

Winds average 13 km/h in September.

Across September, daily wind ranges from about 13 km/h on the calmest days to 14 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202530
Wind speed (km/h)Feels
114light breeze
214light breeze
314light breeze
414light breeze
513light breeze
613light breeze
713light breeze
813light breeze
913light breeze
1013light breeze
1113light breeze
1213light breeze
1313light breeze
1413light breeze
1513light breeze
1613light breeze
1713light breeze
1813light breeze
1913light breeze
2013light breeze
2113light breeze
2213light breeze
2313light breeze
2413light breeze
2513light breeze
2613light breeze
2713light breeze
2813light breeze
2913light breeze
3014light breeze

Sunrise & sunset in September

DaylightNight

Daylight runs from about 12 h 54 min at the start of September to 11 h 42 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 72 minutes over September. Sunrise moves from 5:59 AM to 6:25 AM, and sunset from 6:50 PM to 6:04 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.95:596:50
212.86:006:49
312.86:016:47
412.76:026:46
512.76:026:44
612.76:036:43
712.66:046:41
812.66:056:39
912.56:066:38
1012.56:076:36
1112.46:086:35
1212.46:096:33
1312.46:096:31
1412.36:106:30
1512.36:116:28
1612.26:126:26
1712.26:136:25
1812.26:146:23
1912.16:156:22
2012.16:166:20
2112.06:166:18
2212.06:176:17
2311.96:186:15
2411.96:196:14
2511.96:206:12
2611.86:216:10
2711.86:226:09
2811.76:236:07
2911.76:246:06
3011.76:256:04

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.3 kWh/m².

For context, solar energy here swings from a low near 1.96 kWh/m² to a high of 7.54 kWh/m² in June across the year — September's 5.3 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
16.1Intense
26.0Intense
36.0Intense
45.9Bright
55.9Bright
65.8Bright
75.8Bright
85.7Bright
95.7Bright
105.6Bright
115.6Bright
125.5Bright
135.5Bright
145.4Bright
155.3Bright
165.3Bright
175.2Bright
185.2Bright
195.1Bright
205.1Bright
215.0Bright
225.0Bright
234.9Bright
244.8Bright
254.8Bright
264.7Bright
274.7Bright
284.6Bright
294.6Bright
304.5Bright
Planning a trip in September

Is September a good time to visit Glyfáda?

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

8.5
Sightseeing
1st-best month of the year
8.5
Beach & pool
4th-best month of the year

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

What to pack for Glyfáda in September

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

In September, Glyfáda sees daytime highs around 27°C and nights near 22°C. Worth packing: light clothes and sun protection.

light clothessun protection

Sea temperature near Glyfáda 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 offshore is warmest in August at about 26°C and coldest in February near 15°C.

It's comfortable for a long swim from May 28 to Nov 16 — about 5.7 months when the water holds above 20°C.

15°20°25°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan15Cool
Feb15Bracing
Mar15Bracing
Apr16Cool
May19Cool
Jun22Refreshing
Jul25Warm
Aug26Warm
Sep25Warm
Oct23Refreshing
Nov20Refreshing
Dec17Cool

UV index in Glyfáda 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 Glyfáda peaks around July 13 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near January 1 at about 2 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 8 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateVery highHighModerateJul 13UV 9Jan 1UV 2
UV index (midday)Level
Jan2Low
Feb3Moderate
Mar5Moderate
Apr7Very high
May7High
Jun9Very high
Jul9Very high
Aug9Very high
Sep7Very high
Oct5Moderate
Nov3Moderate
Dec2Low

Air quality in Glyfáda 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 Glyfáda is worst in July — around 19 µg/m³ PM2.5 (moderate), about 2.5× the cleanest month (December, 7 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJul 1718 µg/m³Dec 168 µg/m³
PM2.5 (µg/m³)Level
Jan10Good
Feb12Moderate
Mar14Moderate
Apr14Moderate
May13Moderate
Jun15Moderate
Jul19Moderate
Aug15Moderate
Sep10Good
Oct8Good
Nov10Good
Dec7Good
Location & terrain

Where is Glyfáda?

Glyfáda sits at 37.9°N, 23.8°E, 24 m above sea level, in Greece. The nearest listed city is Voúla, 3.0 km away.

Topography around Glyfáda

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

Within 3 km, the terrain around Glyfáda has significant variations in elevation — a maximum elevation change of 558 m around an average of 77 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 1,025 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,400 m.

The land around Glyfáda is covered by artificial surfaces (45%) and water (25%) within 3 km, water (49%) and artificial surfaces (20%) within 16 km, and water (56%) within 80 km.

3 km
558 m
16 km
1,025 m
80 km
1,400 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
September weather nearby: Voúla 3.0 km · Ellinikó 3.0 km · Argyroúpoli 5.0 km · Vári 5.0 km · Álimos 6.0 km · Ilioúpoli 8.0 km · Agios Dimitrios 8.0 km · Palaió Fáliro 9.0 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 Glyfáda (37.8629°, 23.758°, 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).