All data are in degrees Fahrenheit

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Water temperature in Istanbul

Detailed information about the current water temperature in Istanbul. The trend over the last two weeks, daily averages, and precise forecast of the water temperature changes. Gain a deeper understanding of seasonal dynamics with monthly statistical analyses covering recent years.
Sea temperature in Istanbul now

78.3

°F

July 27, 10:49

Trend:

stable

Yesterday:

79.3°F

Tomorrow:

78.4°F

Sunrise:

05:56

Sunset:

20:25

Day Length:

14 h. 29 min.

Istanbul in August

Minimum:

47.0°F

Average:

50.3°F

Maximum:

53.0°F

Sea water temperature in Istanbul today

As of now, in Istanbul, the water temperature is 78.3°F. It's safe to say that the water is comfortably warm for various water-related activities. Today's reading is 2.5°F higher than the average recorded on this particular day in recent years. The sea temperature remains approximately unchanged from yesterday. According to the forecast, we expect the temperature to stay about the same.

Recent sea temperature and forecast

The water temperature today is above average for the last two weeks, showing a small increase in temperature. It is also close to the historical maximum temperature for this date. The maximum temperature recorded for this date was 78.5°F on 2018, while the historical minimum was 73.3°F on 2020.

Observations from the last two weeks indicate that the water temperature was in proximity to the highest values recorded on those days in the past. The forecast for the upcoming week suggests a gradual increase. The average temperature is expected to rise up to 78.8°F, with minimum temperature starting at 78.4°F, while the maximum might reach 79.0°F.

Daily water temperature in Istanbul

Date Current Year

actual* / forecast**

last year 10 years average
Jul 13 75.2°F 74.2°F 74.0°F
Jul 14 75.8°F 75.3°F 74.6°F
Jul 15 76.2°F 75.5°F 74.8°F
Jul 16 76.5°F 75.8°F 74.9°F
Jul 17 77.8°F 74.9°F 75.1°F
Jul 18 78.1°F 74.1°F 75.1°F
Jul 19 79.0°F 74.4°F 75.1°F
Jul 20 78.5°F 75.4°F 75.0°F
Jul 21 79.1°F 76.6°F 75.0°F
Jul 22 78.9°F 76.8°F 75.3°F
Jul 23 79.3°F 77.4°F 75.5°F
Jul 24 79.4°F 77.9°F 75.8°F
Jul 25 79.1°F 77.3°F 75.8°F
Jul 26 79.3°F 77.1°F 75.9°F
Jul 27 78.3°F 77.2°F 75.8°F
Jul 28 78.4°F 76.2°F 75.9°F
Jul 29 78.5°F 74.4°F 76.0°F
Jul 30 78.8°F 74.5°F 76.3°F
Jul 31 78.9°F 74.2°F 76.4°F
Aug 1 79.0°F 74.1°F 76.5°F
Aug 2 78.9°F 73.7°F 76.4°F
Aug 3 78.9°F 74.6°F 76.4°F

* actual - actual temperature values

** forecast - projected values for the next week

Real-time coastal temperatures could deviate by several degrees from the provided readings. These deviations often become evident following intense rainfall or strong winds.

Our forecasting methodology leverages a mathematical model, that uses current water and weather conditions, historical records, wind intensity and direction.

Sea water temperature in Istanbul by month

In Istanbul, the months July through September offer comfortable swimming conditions, which amounts to 80 swimming days.
The warmest water in Istanbul was recorded on August 17, 2014, reaching a 80.2°F. While the coldest temperature occurred on February 21, 2017, dipping to 42.7°F. The average readings by season are 50.4°F in Winter, 53.4°F in Spring, 73.4°F in Summer, and 66.9°F in Autumn.

Popular neighboring cities and resorts

City Water temperature* Distance**
Üsküdar 77.2°F 3mi
Esenler 79.1°F 4mi
Bahçelievler 79.1°F 5mi
Bağcılar 79.1°F 5mi
Sultangazi 79.4°F 8mi
Umraniye 77.5°F 9mi
Maltepe 77.5°F 12mi
Yalova 78.4°F 30mi
Bursa 78.8°F 57mi

* current water temperature in this city

** straight line distance from Istanbul