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

74.7

°F

July 21, 03:11

Trend:

stable

Yesterday:

74.7°F

Tomorrow:

74.9°F

Sunrise:

05:49

Sunset:

20:31

Day Length:

14 h. 42 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 74.7°F. It's safe to say that the water is comfortably warm for various water-related activities. Today's reading is 0.3°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 rise a bit.

Recent sea temperature and forecast

Today's water temperature is notably higher than the average recorded over the past two weeks, indicating a significant warming trend. It also falls within the range of the average temperature recorded for this date, suggesting a consistent weather trend. The maximum temperature recorded for this date was 79.1°F on 2024, while the historical minimum was 70.6°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 75.4°F, with minimum temperature starting at 74.9°F, while the maximum might reach 75.7°F.

Daily water temperature in Istanbul

Date Current Year

actual* / forecast**

last year 10 years average
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 73.7°F
Jul 12 72.4°F 72.2°F 73.5°F
Jul 13 72.7°F 72.2°F 73.5°F
Jul 14 73.5°F 72.7°F 74.2°F
Jul 15 72.9°F 73.3°F 74.3°F
Jul 16 73.5°F 73.6°F 74.5°F
Jul 17 73.6°F 73.7°F 74.8°F
Jul 18 74.0°F 74.3°F 74.9°F
Jul 19 74.7°F 74.2°F 74.9°F
Jul 20 74.7°F 74.7°F 74.9°F
Jul 21 74.7°F 75.0°F 74.9°F
Jul 22 74.9°F 75.5°F 75.2°F
Jul 23 75.3°F 76.4°F 75.5°F
Jul 24 75.7°F 77.2°F 75.9°F
Jul 25 75.5°F 75.9°F 75.8°F
Jul 26 75.5°F 75.3°F 75.7°F
Jul 27 75.4°F 75.2°F 75.7°F
Jul 28 75.5°F 75.3°F 75.8°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 73.1°F 3mi
Esenler 76.0°F 4mi
Bahçelievler 76.0°F 5mi
Bağcılar 76.0°F 5mi
Sultangazi 75.5°F 8mi
Umraniye 73.3°F 9mi
Maltepe 75.4°F 12mi
Yalova 75.8°F 30mi
Bursa 78.0°F 57mi

* current water temperature in this city

** straight line distance from Istanbul