Sultanbeyli weather in September

In September, Sultanbeyli sees average daytime highs of 24°C and overnight lows near 19°C, with 48 mm of rain across 6.5 wet days and about 12.3 hours of daylight. It is the 4th-warmest and 7th-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 63% of the time in September, and the air most often feels humid.

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 Sultanbeyli's 4th-clearest and 6th-windiest month. For the whole year in context, see Sultanbeyli's year-round climate.

Daytime high
24°
4th warmest
Overnight low
19°
10th coldest
Rainfall
48 mm
6.5 wet days
Daylight
12 h 18 min
5:49 AM – 6:05 PM
Cloud cover
34%
4th clearest
Wind
15 km/h
6th windiest
Solar energy
4.48 kWh/m²
Travel score
7.9
out of 10

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 Sultanbeyli reaches about 24°C in the afternoon and slips back to 19°C overnight — a 5°C spread between the day's warmth and the night's chill. On most days the high lands between 20°C and 27°C. Set against its neighbours, September runs about 3°C cooler than August and about 5°C warmer than October.

10°15°20°25°30°151015202530
Avg high (°C)Avg low (°C)
12521
22521
32521
42520
52520
62520
72520
82520
92420
102420
112420
122420
132419
142419
152419
162419
172319
182319
192319
202319
212319
222318
232318
242318
252218
262218
272218
282218
292218
302218

Sultanbeyli weather by month

How September compares with the rest of the year at a glance. September is the 4th-warmest and 7th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan / 8712.839.41.4
Feb / 7011.92.510.41.5
Mar11° / 7310.60.911.72.5
Apr15° / 10°488.10.113.14.6
May19° / 14°356.2014.37.0
Jun24° / 19°356.1014.98.0
Jul27° / 22°253.7014.68.3
Aug27° / 22°243.6013.68.2
Sep24° / 19°486.5012.37.9
Oct19° / 15°758.9010.96.4
Nov14° / 11°739.80.19.74.3
Dec10° / 10013.11.49.12.2

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 63% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 19% of September, with mostly cloudy or overcast conditions the remaining 19%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
19010
28911
38911
48812
58812
68812
78812
88713
98614
108614
118614
128515
138515
148416
158317
168218
178119
188119
198020
207822
217822
227723
237624
247525
257426
267426
277327
287228
297228
307030

Chance of precipitation in September

Any precipitation

Sultanbeyli gets around 48 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 26% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%40%151015202530
Rain chance (%)
117
218
318
418
518
618
718
818
918
1018
1118
1218
1318
1419
1519
1620
1720
1821
1922
2023
2123
2224
2325
2426
2526
2626
2726
2826
2926
3026

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 23% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
161831387
262032366
372132355
482233335
582333314
692434304
792434293
8102535283
9102536272
10112636262
11112637251
12112737241
13112738231
14122738221
15122739211
16122839211
17132839200
18142839190
19142839180
20152839170
21162839170
22172839160
23182839150
24192938140
25202938130
26212938120
27222938110
28232937110
29242937100
30253036100

Wind in September

Winds average 15 km/h in September.

Across September, daily wind ranges from about 14 km/h on the calmest days to 16 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202530
Wind speed (km/h)Feels
116light 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
2014light breeze
2114light breeze
2214light breeze
2314light breeze
2414light breeze
2514light breeze
2614light breeze
2714light breeze
2814light breeze
2914light breeze
3014light 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 5:34 AM to 6:04 AM, and sunset from 6:31 PM to 5:41 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
113.05:346:31
212.95:356:30
312.95:366:28
412.85:376:26
512.85:386:25
612.75:396:23
712.75:406:21
812.65:416:19
912.65:426:18
1012.55:436:16
1112.55:446:14
1212.55:456:12
1312.45:466:11
1412.45:476:09
1512.35:486:07
1612.35:496:05
1712.25:506:04
1812.25:516:02
1912.15:526:00
2012.15:535:58
2112.05:545:56
2212.05:555:55
2311.95:565:53
2411.95:575:51
2511.85:585:49
2611.86:005:48
2711.86:015:46
2811.76:025:44
2911.76:035:42
3011.66:045:41

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.48 kWh/m².

For context, solar energy here swings from a low near 1.44 kWh/m² to a high of 6.81 kWh/m² in July across the year — September's 4.48 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
15.2Bright
25.2Bright
35.1Bright
45.1Bright
55.0Bright
65.0Bright
74.9Bright
84.9Bright
94.8Bright
104.8Bright
114.8Bright
124.7Bright
134.7Bright
144.6Bright
154.5Bright
164.5Bright
174.4Bright
184.4Bright
194.3Bright
204.3Bright
214.2Bright
224.1Bright
234.1Bright
244.0Bright
254.0Moderate
263.9Moderate
273.9Moderate
283.8Moderate
293.8Moderate
303.7Moderate
Planning a trip in September

Is September a good time to visit Sultanbeyli?

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

7.9
Sightseeing
4th-best month of the year
6.4
Beach & pool
4th-best month of the year

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

What to pack for Sultanbeyli in September

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

In September, Sultanbeyli sees daytime highs around 24°C and nights near 19°C. Worth packing: light clothes. About 7 days see rain.

light clothes

Sea temperature near Sultanbeyli in September

The nearest coast averages about 22°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 16 km away) is warmest in August at about 24°C and coldest in February near 8°C.

It's comfortable for a long swim from Jun 12 to Oct 6 — about 3.8 months when the water holds above 20°C.

5°10°15°20°25°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmcomfortable to swim
Sea temperature (°C)Comfort
Jan9Bracing
Feb8Bracing
Mar9Bracing
Apr11Bracing
May16Cool
Jun21Refreshing
Jul23Refreshing
Aug24Warm
Sep22Refreshing
Oct19Cool
Nov15Cool
Dec12Bracing

UV index in Sultanbeyli 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 Sultanbeyli peaks around July 17 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.

025710JanFebMarAprMayJunJulAugSepOctNovDecLowModerateHighVery highModerateLowJul 17UV 9Dec 22UV 2
UV index (midday)Level
Jan2Low
Feb2Moderate
Mar4Moderate
Apr7High
May7High
Jun9Very high
Jul9Very high
Aug9Very high
Sep7High
Oct4Moderate
Nov2Moderate
Dec2Low

Air quality in Sultanbeyli 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 Sultanbeyli is worst in March — around 17 µg/m³ PM2.5 (moderate), about 2.0× the cleanest month (July, 9 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodMar 1917 µg/m³Jul 189 µg/m³
PM2.5 (µg/m³)Level
Jan11Good
Feb14Moderate
Mar17Moderate
Apr16Moderate
May13Moderate
Jun10Good
Jul9Good
Aug10Good
Sep10Good
Oct11Good
Nov11Good
Dec10Good
Location & terrain

Where is Sultanbeyli?

Sultanbeyli sits at 41.0°N, 29.3°E, 151 m above sea level, in Turkey. The nearest listed city is Sancaktepe, 6.0 km away.

Topography around Sultanbeyli

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

Within 3 km, the terrain around Sultanbeyli has significant variations in elevation — a maximum elevation change of 402 m around an average of 193 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 541 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,604 m.

The land around Sultanbeyli is covered by artificial surfaces (58%) and trees (38%) within 3 km, trees (38%) and artificial surfaces (33%) within 16 km, and water (47%) and trees (34%) within 80 km.

3 km
402 m
16 km
541 m
80 km
1,604 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
September weather nearby: Sancaktepe 6.0 km · Maltepe 10 km · Ataşehir 13 km · Umraniye 14 km · Gebze 22 km · Çubuklu 22 km · Üsküdar 23 km · İstinye 25 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 Sultanbeyli (40.9607°, 29.2707°, elevation 151 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).