Sea Temperature

İstanbul Sea Temperature

(Today) Oct 2017

18.9°C / 66°F

Current weather

(light intensity shower rain)
16°C / 62°F

Partly cloudy

8 mph



The measurements for the sea temperature in İstanbul, Istanbul are provided by the daily satellite readings provided by the NOAA. The temperatures given are the surface temperature (SST) which is most relevant to recreational users.

Monthly average max / min water temperatures

The graph below shows the range of monthly water temperatures over several years.

Maximum and minimum monthly sea temperatures in İstanbul
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C 6.5 6.2 6.4 7.4 12.8 18.1 21.7 22.7 21 15.6 11.1 8.1
Max °C 10.4 9.2 10.2 13 18.5 24.6 27.7 27.1 24.7 21.3 16.5 13.2
Min °F 45.2 44.4 45 47.6 57.3 67.1 73.5 74.6 71.2 62.3 54.1 48.6
Max °F 49.1 47.4 48.8 53.2 63 73.6 79.5 79 74.9 68 59.5 53.7

Average October sea temperatures

  • Max: 15.6°C / 60°F
  • Avg: 18.4°C / 65.1°F
  • Min: 21.3°C / 70.3°F
İstanbul average sea temperature chart

These average ocean temperatures for İstanbul are calculated from several years of archived data.

Map showing location of İstanbul (41.013840, 28.949660)

Locations nearby


Whilst sea temperatures for İstanbul are as accurate as current data allows there may be slight local and regional variations depending on conditions. Time of day and wind direction may have a temporary local effect as can water flows from neraby rivers.

Alternate names for İstanbul
Bizanc, Bizánc, Byzance, Byzantio, Byzantion, Byzantium, Byzanz, Constantinoble, Constantinopla, Constantinople, Constantinopoli, Constantinopolis, Costantinopoli, Estambul, IST, Istamboul, Istambul, Istambuł, Istampoul, Istanbul, Istanbúl, Isztambul, Konstantinapoly, Konstantinopel, Konstantinopolo, Konstantinoupole, Konstantinoupoli, Konstantinoupolis, Konstantinápoly, Kustantiniyah, Micklagard, Micklagård, Mikligardur, Mikligarður, Stamboul, Stambul, Stambula, Stambuł, Tsarigrad, Vizantija, Vyzantio, bijantion, byuzantion, byzntywn, isutanburu, yi si tan bu er, İstanbul, Βυζάντιο, Βυζαντιο, Ισταμπουλ, Ισταμπούλ, Κωνσταντινουπολη, Κωνσταντινούπολη, Византија, Истанбул, Стамбул, ביזנטיון, イスタンブール, ビュザンティオン, 伊斯坦布尔, 비잔티온

İstanbul average sea temperature chart