Kas weather in September

In September, Kas sees average daytime highs of 26°C and overnight lows near 20°C, with 16 mm of rain across 2.8 wet days and about 12.2 hours of daylight. It is the 3rd-warmest and 9th-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 93% of the time in September, and the air most often feels humid.

Daylight stretches from about 12 h 48 min at the start of September to 11 h 42 min by month's end. Set against the rest of the year, September is Kas's 3rd-clearest and 6th-windiest month. For the whole year in context, see Kas's year-round climate.

Daytime high
26°
3rd warmest
Overnight low
20°
10th coldest
Rainfall
16 mm
2.8 wet days
Daylight
12 h 12 min
5:49 AM – 6:03 PM
Cloud cover
12%
3rd clearest
Wind
9 km/h
6th windiest
Solar energy
5.81 kWh/m²
Travel score
8.7
out of 10

Kas is district and town in Antalya, Turkey.

Density
3/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 Kas reaches about 26°C in the afternoon and slips back to 20°C overnight — a 6°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)
12822
22822
32822
42822
52722
62722
72721
82721
92721
102721
112721
122721
132721
142621
152620
162620
172620
182620
192620
202620
212620
222520
232519
242519
252519
262519
272519
282519
292519
302419

Kas weather by month

How September compares with the rest of the year at a glance. September is the 3rd-warmest and 9th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan12° / 18113.71.19.82.9
Feb12° / 116111.410.63.2
Mar14° / 8090.411.74.4
Apr17° / 12°448.1012.96.0
May21° / 15°305.8013.97.8
Jun26° / 20°102.3014.48.8
Jul29° / 23°61.1014.27.7
Aug29° / 23°72.2013.47.4
Sep26° / 20°162.8012.28.7
Oct22° / 16°556011.17.9
Nov17° / 12°897.3010.16.2
Dec13° / 17012.60.69.63.7

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 93% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 4% of September, with mostly cloudy or overcast conditions the remaining 3%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
11000
21000
31000
41000
51000
61000
71000
81000
91000
101000
11991
12982
13982
14982
15982
16982
17982
18973
19973
20964
21964
22964
23964
24955
25955
26946
27946
28946
29937
30937

Chance of precipitation in September

Any precipitation

Kas gets around 16 mm of rain over 2.8 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 9% and peaks near 13% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%151015202530
Rain chance (%)
16
26
36
46
56
66
76
86
97
107
117
128
138
148
159
169
179
1810
1910
2011
2111
2211
2312
2412
2512
2613
2713
2813
2913
3013

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 9% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
152546231
262745220
372844210
472944200
583044190
683143180
793243170
893243160
9103342140
10103442130
11113541120
12123641120
13123641110
14133740100
1514374090
1615383980
1716383970
1817393860
1918403750
2019403640
2121403540
2222413430
2324413320
2426413120
2527413010
2629412910
2730422710
2831422610
2933432500
3034432300

Wind in September

Winds average 9 km/h in September.

Across September, daily wind ranges from about 9 km/h on the calmest days to 10 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (km/h)Feels
19calm
29calm
39calm
410calm
510calm
610calm
710calm
810calm
910calm
1010calm
119calm
129calm
139calm
149calm
159calm
169calm
179calm
189calm
199calm
209calm
219calm
229calm
239calm
249calm
259calm
269calm
279calm
289calm
299calm
309calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 12 h 48 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 66 minutes over September. Sunrise moves from 5:37 AM to 6:00 AM, and sunset from 6:25 PM to 5:41 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.85:376:25
212.85:386:24
312.75:396:22
412.75:396:21
512.75:406:19
612.65:416:18
712.65:426:16
812.55:436:15
912.55:436:13
1012.55:446:12
1112.45:456:10
1212.45:466:09
1312.35:476:07
1412.35:476:06
1512.35:486:04
1612.25:496:03
1712.25:506:01
1812.15:515:59
1912.15:515:58
2012.15:525:56
2112.05:535:55
2212.05:545:53
2312.05:555:52
2411.95:555:50
2511.95:565:49
2611.85:575:47
2711.85:585:46
2811.85:595:44
2911.76:005:43
3011.76:005:41

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.81 kWh/m².

For context, solar energy here swings from a low near 2.3 kWh/m² to a high of 7.83 kWh/m² in June across the year — September's 5.81 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
16.5Intense
26.4Intense
36.4Intense
46.3Intense
56.3Intense
66.3Intense
76.2Intense
86.2Intense
96.1Intense
106.1Intense
116.0Intense
126.0Bright
135.9Bright
145.9Bright
155.8Bright
165.8Bright
175.7Bright
185.7Bright
195.6Bright
205.6Bright
215.5Bright
225.5Bright
235.4Bright
245.4Bright
255.3Bright
265.3Bright
275.2Bright
285.2Bright
295.1Bright
305.1Bright
Planning a trip in September

Hazard calendar for Kas

In seasonPeak

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

Kas's rainy season runs November–February, 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 Kas?

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

8.7
Sightseeing
2nd-best month of the year
8.3
Beach & pool
3rd-best month of the year

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

What to pack for Kas in September

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

In September, Kas sees daytime highs around 26°C and nights near 20°C. Worth packing: light clothes and sun protection.

light clothessun protection

Sea temperature near Kas in September

The nearest coast averages about 27°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 28°C and coldest in March near 17°C.

It's comfortable for a long swim from May 14 to Dec 9 — about 6.9 months when the water holds above 20°C.

15°20°25°30°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan18Cool
Feb17Cool
Mar17Cool
Apr18Cool
May20Refreshing
Jun24Refreshing
Jul27Warm
Aug28Tropical
Sep27Warm
Oct25Warm
Nov22Refreshing
Dec20Cool

UV index in Kas in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 8 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Kas peaks around June 20 at about 10 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near January 10 at about 2 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 10 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateVery highVery highModerateJun 20UV 10Jan 10UV 2
UV index (midday)Level
Jan2Moderate
Feb3Moderate
Mar4Moderate
Apr8Very high
May8Very high
Jun10Extreme
Jul10Very high
Aug10Very high
Sep8Very high
Oct6High
Nov3Moderate
Dec3Moderate

Air quality in Kas 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 Kas is worst in August — around 16 µg/m³ PM2.5 (moderate), about 2.0× the cleanest month (December, 8 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodMay 1616 µg/m³Dec 168 µg/m³
PM2.5 (µg/m³)Level
Jan11Good
Feb12Moderate
Mar15Moderate
Apr15Moderate
May16Moderate
Jun14Moderate
Jul14Moderate
Aug16Moderate
Sep13Moderate
Oct12Moderate
Nov11Good
Dec8Good
Location & terrain

Where is Kas?

Kas sits at 36.2°N, 29.6°E, 0 m above sea level, in Turkey. The nearest listed city is Ölüdeniz, 60 km away.

DalamanSarigermeOrtaca

Topography around Kas

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

Within 3 km, the terrain around Kas has large variations in elevation — a maximum elevation change of 681 m around an average of 229 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,633 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,038 m.

The land around Kas is covered by trees (41%) and water (32%) within 3 km, trees (43%) and water (39%) within 16 km, and water (44%) and trees (33%) within 80 km.

3 km
681 m
16 km
1,633 m
80 km
3,038 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
September weather nearby: Ölüdeniz 60 km · Beykonak 61 km · Elmalı 64 km · Fethiye 67 km · Kemer 94 km · Dalaman 97 km · Sarigerme 101 km · Ortaca 105 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 Kas (36.2018°, 29.6377°, elevation 0 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).