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

71.8

°F

July 11, 22:32

Trend:

decreasing

Yesterday:

72.4°F

Tomorrow:

71.7°F

Sunrise:

05:41

Sunset:

20:37

Day Length:

14 h. 56 min.

Istanbul in July

Minimum:

47.3°F

Average:

51.1°F

Maximum:

53.1°F

Sea water temperature in Istanbul today

As of now, in Istanbul, the water temperature is 71.8°F. Swimming in water of this temperature is seen as relatively warm and enjoyable for some individuals, although many might find it slightly too cool. Today's reading is 2.0°F lower 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 fall a bit.

Recent sea temperature and forecast

Today's water temperature is considerably lower than the average registered over the last two weeks, indicating a slight cooling trend. It is also close to the historical minimum temperature for this date. The maximum temperature recorded for this date was 75.9°F on 2018, while the historical minimum was 71.3°F on 2022.

Over the last two weeks, the water temperature has stayed slightly lower than historical averages for those days. The forecast for the upcoming week suggests a gradual increase. The average temperature is expected to rise up to 72.4°F, with minimum temperature starting at 71.6°F, while the maximum might reach 73.0°F.

Daily water temperature in Istanbul

Date Current Year

actual* / forecast**

last year 10 years average
Jun 27 72.2°F 70.7°F 72.4°F
Jun 28 72.0°F 71.1°F 72.5°F
Jun 29 72.1°F 71.9°F 72.9°F
Jun 30 72.1°F 69.6°F 72.4°F
Jul 1 72.3°F 70.9°F 73.0°F
Jul 2 73.3°F 70.6°F 73.6°F
Jul 3 73.3°F 70.1°F 73.9°F
Jul 4 74.5°F 70.3°F 74.2°F
Jul 5 73.0°F 71.2°F 74.0°F
Jul 6 73.1°F 71.3°F 73.8°F
Jul 7 72.8°F 71.6°F 73.8°F
Jul 8 72.8°F 72.4°F 73.9°F
Jul 9 73.5°F 73.1°F 74.1°F
Jul 10 72.4°F 73.0°F 73.7°F
Jul 11 71.8°F 71.7°F 73.8°F
Jul 12 71.7°F 72.2°F 73.7°F
Jul 13 71.6°F 72.2°F 73.6°F
Jul 14 72.3°F 72.7°F 74.3°F
Jul 15 72.5°F 73.3°F 74.5°F
Jul 16 72.6°F 73.6°F 74.6°F
Jul 17 72.9°F 73.7°F 74.9°F
Jul 18 73.0°F 74.3°F 75.0°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 1, 2018, reaching a 79.6°F. While the coldest temperature occurred on February 21, 2017, dipping to 42.7°F. The average readings by season are 50.7°F in Winter, 53.3°F in Spring, 73.2°F in Summer, and 67.2°F in Autumn.

Popular neighboring cities and resorts

City Water temperature* Distance**
Üsküdar 70.9°F 3mi
Esenler 72.6°F 4mi
Bahçelievler 72.6°F 5mi
Bağcılar 72.6°F 5mi
Sultangazi 73.7°F 8mi
Umraniye 71.2°F 9mi
Maltepe 73.5°F 12mi
Yalova 73.5°F 30mi
Bursa 74.0°F 57mi

* current water temperature in this city

** straight line distance from Istanbul