Erdek weather in September

In September, Erdek sees average daytime highs of 24°C and overnight lows near 20°C, with 39 mm of rain across 5.1 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 25°C in the first days to 22°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 Erdek's 4th-clearest and 6th-windiest month. For the whole year in context, see Erdek's year-round climate.

Daytime high
24°
4th warmest
Overnight low
20°
9th coldest
Rainfall
39 mm
5.1 wet days
Daylight
12 h 18 min
5:55 AM – 6:11 PM
Cloud cover
30%
4th clearest
Wind
18 km/h
6th windiest
Solar energy
4.64 kWh/m²
Travel score
8.2
out of 10

Erdek is district and town in Balıkesir Province, Turkey.

Air quality
Good
PM10 24.1 µg/m³ · 2019

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 25°C in the first days to 22°C by the end.

A typical September day in Erdek reaches about 24°C in the afternoon and slips back to 20°C overnight — a 4°C spread between the day's warmth and the night's chill. On most days the high lands between 21°C and 27°C. Set against its neighbours, September runs about 3°C cooler than August and about 4°C warmer than October.

15°20°25°30°151015202530
Avg high (°C)Avg low (°C)
12622
22622
32521
42521
52521
62521
72521
82521
92521
102521
112420
122420
132420
142420
152420
162420
172420
182420
192319
202319
212319
222319
232319
242319
252319
262218
272218
282218
292218
302218

Erdek 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
Jan / 7610.829.41.7
Feb / 7010210.41.9
Mar11° / 66100.611.72.8
Apr15° / 10°437.30134.9
May20° / 15°326.1014.27.1
Jun25° / 20°224.4014.88.3
Jul27° / 23°162.8014.68.5
Aug27° / 23°122.7013.68.4
Sep24° / 20°395.1012.38.2
Oct19° / 16°778.3010.96.5
Nov15° / 11°678.209.84.6
Dec11° / 9312.51.19.22.4

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 13% of September, with mostly cloudy or overcast conditions the remaining 16%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
1937
2937
3928
4919
5919
6919
79010
88911
98911
108911
118812
128812
138713
148614
158515
168416
178317
188218
198119
208020
218020
227822
237723
247624
257624
267426
277426
287426
297327
307228

Chance of precipitation in September

Any precipitation

Erdek gets around 39 mm of rain over 5.1 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 16% and peaks near 22% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%151015202530
Rain chance (%)
112
212
312
413
513
613
713
813
913
1013
1113
1213
1314
1414
1514
1615
1716
1816
1917
2018
2119
2219
2320
2421
2521
2621
2721
2821
2922
3022

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 37% of days. Sticky, muggy-or-worse air turns up on roughly 21% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
171831395
282032374
382132354
492233333
5102334313
6102434292
7112435272
8112536262
9122537241
10122638231
11122639221
12132640211
13132640201
14142640191
15142741180
16152741170
17152741160
18162741150
19162841150
20172841140
21182840130
22192840120
23202939120
24212938110
25222938100
26232937100
27243036100
2825303690
2925313590
3026313480

Wind in September

Winds average 18 km/h in September.

Across September, daily wind ranges from about 17 km/h on the calmest days to 19 km/h at its breeziest. It stays fairly steady from day to day.

0510152025151015202530
Wind speed (km/h)Feels
119light breeze
219light breeze
319light breeze
419light breeze
519light breeze
619light breeze
719light breeze
819light breeze
919light breeze
1019light breeze
1118light breeze
1218light breeze
1318light breeze
1418light breeze
1518light breeze
1618light breeze
1718light breeze
1818light breeze
1918light breeze
2018light breeze
2117light breeze
2217light breeze
2317light breeze
2417light breeze
2517light breeze
2617light breeze
2717light breeze
2817light breeze
2917light breeze
3017light breeze

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 5:40 AM to 6:09 AM, and sunset from 6:37 PM to 5:47 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.95:406:37
212.95:416:35
312.95:426:33
412.85:436:32
512.85:446:30
612.75:456:28
712.75:466:27
812.65:476:25
912.65:486:23
1012.55:496:21
1112.55:506:20
1212.45:516:18
1312.45:526:16
1412.45:536:15
1512.35:546:13
1612.35:556:11
1712.25:566:09
1812.25:576:08
1912.15:586:06
2012.15:596:04
2112.06:006:02
2212.06:016:01
2311.96:025:59
2411.96:035:57
2511.96:045:55
2611.86:055:54
2711.86:065:52
2811.76:075:50
2911.76:085:49
3011.66:095:47

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.64 kWh/m².

For context, solar energy here swings from a low near 1.45 kWh/m² to a high of 6.99 kWh/m² in July across the year — September's 4.64 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
15.5Bright
25.4Bright
35.3Bright
45.3Bright
55.2Bright
65.2Bright
75.1Bright
85.1Bright
95.0Bright
105.0Bright
114.9Bright
124.9Bright
134.8Bright
144.8Bright
154.7Bright
164.6Bright
174.6Bright
184.5Bright
194.5Bright
204.4Bright
214.3Bright
224.3Bright
234.2Bright
244.2Bright
254.1Bright
264.0Bright
274.0Moderate
283.9Moderate
293.9Moderate
303.8Moderate
Planning a trip in September

Hazard calendar for Erdek

In seasonPeak

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

Erdek'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 Erdek?

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

8.2
Sightseeing
4th-best month of the year
6.8
Beach & pool
4th-best month of the year

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

What to pack for Erdek in September

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

In September, Erdek sees daytime highs around 24°C and nights near 20°C. Worth packing: light clothes and sun protection. About 5 days see rain.

light clothessun protection

Sea temperature near Erdek 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 at the nearest coast (about 15 km away) is warmest in August at about 25°C and coldest in February near 9°C.

It's comfortable for a long swim from Jun 4 to Oct 9 — about 4.2 months when the water holds above 20°C.

10°20°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan9Bracing
Feb9Bracing
Mar10Bracing
Apr12Bracing
May17Cool
Jun22Refreshing
Jul24Warm
Aug25Warm
Sep23Refreshing
Oct19Cool
Nov15Cool
Dec12Bracing

UV index in Erdek 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 Erdek 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

Air quality in Erdek 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 Erdek is worst in March — around 16 µg/m³ PM2.5 (moderate), about 1.9× the cleanest month (December, 8 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodMar 2416 µg/m³Dec 169 µg/m³
PM2.5 (µg/m³)Level
Jan10Good
Feb12Moderate
Mar16Moderate
Apr16Moderate
May14Moderate
Jun11Good
Jul10Good
Aug10Good
Sep10Good
Oct10Good
Nov10Good
Dec8Good
Location & terrain

Where is Erdek?

Erdek sits at 40.4°N, 27.8°E, 28 m above sea level, in Turkey. The nearest listed city is Bandırma, 16 km away.

Topography around Erdek

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

Within 3 km, the terrain around Erdek has significant variations in elevation — a maximum elevation change of 275 m around an average of 29 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 800 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,372 m.

The land around Erdek is covered by water (54%) and trees (33%) within 3 km, water (45%) and trees (32%) within 16 km, and water (41%), trees (27%) and cropland (23%) within 80 km.

3 km
275 m
16 km
800 m
80 km
1,372 m
treesshrubsgrasslandcroplandartificial surfaceswater
September weather nearby: Bandırma 16 km · Gönen 35 km · Biga 50 km · Karacabey 52 km · Susurluk 62 km · Mustafakemalpaşa 66 km · Tekirdağ 69 km · Çan 75 km

Turkey travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type C / F
230 V · 50 Hz
Prices
≈ 41% of US
price level, 2025
GDP per capita
$18,599
2025
Happiness
5.3 / 10
World Happiness, 2025
Homicide rate
3.2
per 100k, 2023
Road deaths
6.7
per 100k/yr, 2019
Income group
Upper middle
World Bank
English
Low
EF EPI 488
Religion
Muslim 100%other 0%

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 Erdek (40.3996°, 27.7935°, elevation 28 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).