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

67.5

°F

June 5, 10:21

Trend:

increasing

Yesterday:

67.1°F

Tomorrow:

67.7°F

Sunrise:

05:33

Sunset:

20:33

Day Length:

15 h. 0 min.

Istanbul in June

Minimum:

47.5°F

Average:

51.2°F

Maximum:

52.9°F

Sea water temperature in Istanbul today

As of now, in Istanbul, the water temperature is 67.5°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 1.2°F higher than the average recorded on this particular day in recent years. Since yesterday, there was a slight increase in temperature. This indicates a warming trend over the past day. 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 69.5°F on 2024, while the historical minimum was 62.1°F on 2021.

The water temperature over the last two weeks displayed soome variability. While the two week average stayed close to the historical average, there were some days when the temperature was close to the minimum recorded over the past years. The forecast for the upcoming week suggests a gradual increase. The average temperature is expected to rise up to 68.9°F, with minimum temperature starting at 67.7°F, while the maximum might reach 69.9°F.

Daily water temperature in Istanbul

Date Current Year

actual* / forecast**

last year 10 years average
May 22 59.6°F 60.9°F 61.2°F
May 23 59.8°F 62.0°F 61.2°F
May 24 60.2°F 62.4°F 61.5°F
May 25 59.9°F 62.0°F 61.6°F
May 26 61.8°F 62.1°F 62.2°F
May 27 61.4°F 60.0°F 62.4°F
May 28 62.2°F 59.8°F 62.9°F
May 29 63.3°F 60.7°F 63.2°F
May 30 62.3°F 61.2°F 63.3°F
May 31 62.9°F 61.8°F 64.0°F
Jun 1 63.9°F 61.7°F 64.7°F
Jun 2 64.1°F 61.3°F 64.9°F
Jun 3 65.4°F 62.0°F 65.3°F
Jun 4 67.1°F 64.0°F 65.9°F
Jun 5 67.5°F 65.4°F 66.3°F
Jun 6 67.7°F 65.6°F 66.5°F
Jun 7 68.2°F 65.1°F 67.0°F
Jun 8 68.5°F 65.4°F 67.2°F
Jun 9 68.8°F 66.2°F 67.6°F
Jun 10 69.4°F 67.9°F 68.2°F
Jun 11 69.8°F 67.4°F 68.6°F
Jun 12 69.9°F 67.9°F 68.7°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 65.7°F 3mi
Esenler 68.6°F 4mi
Bahçelievler 68.6°F 5mi
Bağcılar 68.6°F 5mi
Sultangazi 67.0°F 8mi
Umraniye 65.7°F 9mi
Maltepe 69.9°F 12mi
Yalova 69.2°F 30mi
Bursa 73.5°F 57mi

* current water temperature in this city

** straight line distance from Istanbul