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

71.0

°F

August 5, 09:56

Trend:

decreasing

Yesterday:

71.3°F

Tomorrow:

70.9°F

Sunrise:

06:03

Sunset:

20:16

Day Length:

14 h. 13 min.

Istanbul in August

Minimum:

47.0°F

Average:

50.9°F

Maximum:

53.0°F

Sea water temperature in Istanbul today

As of now, in Istanbul, the water temperature is 71.0°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 5.2°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 stay about the same.

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 79.4°F on 2018, while the historical minimum was 72.8°F on 2022.

Observations from the last two weeks indicate that the water temperature was in proximity to the lowest values recorded on those days in the past. Over the next week, the forecast shows a steady trend, with temperatures staying close to the average of 70.9°F. Both minimum and maximum temperatures expected to be close to the average, offering a week of stable water conditions.

Daily water temperature in Istanbul

Date Current Year

actual* / forecast**

last year 10 years average
Jul 22 75.0°F 75.5°F 75.2°F
Jul 23 75.3°F 76.4°F 75.5°F
Jul 24 74.3°F 77.2°F 75.8°F
Jul 25 75.0°F 75.9°F 75.7°F
Jul 26 72.9°F 75.3°F 75.4°F
Jul 27 72.9°F 75.2°F 75.4°F
Jul 28 73.5°F 75.3°F 75.6°F
Jul 29 74.6°F 74.8°F 75.6°F
Jul 30 74.4°F 75.4°F 75.8°F
Jul 31 72.3°F 75.7°F 75.6°F
Aug 1 70.9°F 75.7°F 75.7°F
Aug 2 70.3°F 74.3°F 75.5°F
Aug 3 70.9°F 74.7°F 75.7°F
Aug 4 71.3°F 74.2°F 76.4°F
Aug 5 71.0°F 75.0°F 76.1°F
Aug 6 70.9°F 74.6°F 76.1°F
Aug 7 71.1°F 75.2°F 76.3°F
Aug 8 71.1°F 75.1°F 76.3°F
Aug 9 71.0°F 75.0°F 76.2°F
Aug 10 71.0°F 75.0°F 76.1°F
Aug 11 70.7°F 74.7°F 75.8°F
Aug 12 70.4°F 75.4°F 75.5°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, 73.1°F in Summer, and 67.2°F in Autumn.

Popular neighboring cities and resorts

City Water temperature* Distance**
Üsküdar 69.8°F 3mi
Esenler 72.0°F 4mi
Bahçelievler 72.0°F 5mi
Bağcılar 72.0°F 5mi
Sultangazi 73.2°F 8mi
Umraniye 70.1°F 9mi
Maltepe 71.2°F 12mi
Yalova 70.2°F 30mi
Bursa 72.3°F 57mi

* current water temperature in this city

** straight line distance from Istanbul