Turkey / Istanbul
Semizkum Plajı
Semizkum Plajı is a 145 m-long beach facing south-south-east, 6.0 km east of Çanta (Istanbul, Turkey). The sea averages 24.8 °C in August, its warmest month, and 8.2 °C in February; it is 21 °C or warmer in June–September.
Average sea surface temperature by month. Current month outlined.
Month by month
October at Semizkum Plajı
Beach-day index 4.5/10 · Turkey median 6.2
| Measure | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea °C | 9.0 °C | 8.2 °C | 9.0 °C | 11.8 °C | 16.6 °C | 21.6 °C | 24.0 °C | 24.8 °C | 22.7 °C | 19.2 °C | 15.1 °C | 11.6 °C |
| High °C | 8° | 8° | 10° | 13° | 18° | 23° | 25° | 26° | 23° | 19° | 14° | 10° |
| Low °C | 6° | 5° | 7° | 10° | 15° | 20° | 23° | 24° | 21° | 16° | 12° | 8° |
| Rain mm | 94 | 75 | 60 | 43 | 31 | 35 | 26 | 23 | 62 | 87 | 77 | 106 |
| Cloud % | 76 | 75 | 67 | 61 | 55 | 42 | 28 | 30 | 46 | 59 | 68 | 74 |
| Wind m/s | 6.2 | 6.1 | 5.5 | 4.7 | 4.2 | 4.5 | 5.3 | 6.0 | 5.8 | 5.8 | 5.8 | 6.3 |
| Daylight h | 9.5 | 10.6 | 11.9 | 13.3 | 14.5 | 15.1 | 14.9 | 13.9 | 12.5 | 11.2 | 9.9 | 9.2 |
| Record high/low | 16°/-2° | 17°/-3° | 17°/-1° | 23°/2° | 28°/10° | 33°/15° | 33°/20° | 34°/19° | 33°/16° | 30°/9° | 22°/5° | 18°/1° |
| Beach index | 2.1 | 2.3 | 2.6 | 2.9 | 4.0 | 7.8 | 9.3 | 9.2 | 7.8 | 4.5 | 2.4 | 2.0 |
Long-term monthly averages: air from NASA POWER (2001–2020), sea from NOAA OISST (1991–2020); records are the extremes of 2001–2020. How the index works.
When to go
The beach-day index peaks in July–August; July scores 9.3/10 with highs of 25 °C, sea at 24.0 °C and 26 mm of rain.
That matches the median for beaches in Turkey in the same month.
Across the year the sea averages 16.1 °C, cooler than 68% of the coastal beaches in the atlas.
December is the wettest month (106 mm) and August the driest (23 mm); the yearly total is about 720 mm.
Daylight runs from 9.2 hours in December to 15.1 hours in June; in mid-July the sun rises at 05:47 and sets at 20:39 local time.
Orientation, sun and shore
The shore faces south-south-east (165°). Open water fills about 50% of the horizon close by, which makes it an open stretch of shore.
The sun sets over the sea in November–February; in mid-December it goes down at 17:39 local time on a bearing of 239°.
Sunrise is over the sea in September–April.
Straight out to the south-south-east the next coast is roughly 50 km away, so waves are mostly wind-driven sea rather than ocean swell.
About 1 km offshore the sea is roughly 21 m deep and 40 m at 3 km. Behind the beach the ground is about 21 m above sea level 500 m inland and 73 m at 1.5 km.
Within 1 km, the land is 42% built-up land, 32% cropland and 14% grassland (satellite land-cover map, 2021): an urban beach. Water makes up 52% of that circle.
- Built 42%
- Crop 32%
- Grass 14%
- Tree 11%
Land cover: ESA WorldCover 2021 (10 m). Orientation from OpenStreetMap land polygons sampled in 36 directions; depths and heights from the GEBCO 2020 grid (about 450 m cells), indicative only.
OpenStreetMap shows no lifeguard station within 1 km. Seasonal lifeguard posts are often unmapped, so check on site.
Facilities within 1 km
- 5Restaurants, cafés & bars
- –Public toilets
- –Showers
- –Car parks
- –Lifeguard stations
- 7Hotels & guesthouses
- 2Campsites
- 5Grocery shops
- 8Bus stops (1.5 km)
Food and drink mapped within 1 km: 3 restaurants, 1 café and 1 bar. Accommodation: 7 hotels and guesthouses.
Counted within 1 km of the beach (bus stops 1.5 km) from OpenStreetMap features and Overture Maps places, release of 2026-10. Unmapped does not mean absent.
Around the beach
Nature
- Poyraz Tepe peak 1.4 km NW
Campsites
- Semizkum Mocamp 680 m NE
- Mocamp - Semizkum 680 m E
Getting there
| Airport | Code | Distance | Direction |
|---|---|---|---|
| Tekirdağ Çorlu Airport Çorlu | TEQ | 21.1 km | west |
| İstanbul Airport Istanbul | IST | 53.5 km | north-east |
| Istanbul Sabiha Gökçen International Airport Pendik, Istanbul | SAW | 98.9 km | east |
Straight-line distances from the beach; road distance is usually 20–40% longer.
Local transport: 8 bus stops within 1.5 km.
3 towns and villages of 1,000+ people lie within 10 km (about 59.7K residents); within 30 km there are 24 (about 301.9K).
Map and nearby beaches
Loading map…
Open in OpenStreetMap · Directions in Google Maps
| Beach | Distance | Warmest sea | Length | Surface |
|---|---|---|---|---|
| Semizkum Plajı | – | 24.8 °C | 145 m | – |
| Kumburgaz Plajı | 24.9 km E | 24.6 °C | 304 m | – |
| Büyükçekmece Plajı | 37.1 km E | 24.4 °C | 719 m | – |
- Kumburgaz Plajı24.9 km ECompare
- Büyükçekmece Plajı37.1 km ECompare
Data on this page
- Air temperature, rain, cloud, wind, humidity: NASA POWER climatology 2001–2020, 0.5° grid.
- Sea temperature: NOAA OISST v2.1 monthly normals 1991–2020, nearest ocean cell 21.8 km away.
- Beach outline, surface, rules and public facilities: OpenStreetMap contributors (ODbL), feature w1015679663; restaurants, cafés, bars and lodging: Overture Maps places (CDLA-Permissive-2.0).
- Towns and time zone: GeoNames (CC BY 4.0). Airports: OurAirports (public domain). Sunrise and sunset: NOAA solar equations.
- Satellite view: Copernicus Sentinel-2 (ESA), scene S2B_35TNF_20250625_1_L2A.
- Orientation: OpenStreetMap land polygons (ODbL). Depth and terrain: GEBCO 2020 grid.
- Settlements: GeoNames places with 1,000+ inhabitants.
- Land cover: ESA WorldCover 2021, 10 m (CC BY 4.0).
- Search popularity: about 18.1K Google searches a month for the name (KeywordTool, October 2026).
Data compiled 2026-10-13. Something wrong? Report a data error.