Average water temperature in Istanbul

The mean water temperature over the year in Istanbul (Marmara Region), Turkey.

The months June, July, August, September and October have a pleasant water temperature.
On average, July has the warmest water temperature with 25°C.
On average, February has the coldest water temperature with 8°C.

Weather Forecasts for Istanbul

Thu May 02

16°C | 13°C

14 km/h

1 mm

overcast and chance of slight rain

hourly forecast

Fri May 03

18°C | 12°C

11 km/h

1.8 mm

partly cloudy and chance of rain

hourly forecast

Sat May 04

16°C | 12°C

14 km/h

6.6 mm

broken clouds and thunder

hourly forecast

5-Day Forecast 10-Day Forecast

Interested in more climate information?

Weather and Climate provides you with all the information you need about the climate in Istanbul.

Our site offers climate and forecast data for every country in the world. Are you going to Turkey? On this website you can find historical weather averages for many cities in Turkey. Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal climate conditions. Find out where to go with our weather planner.

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