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

52.9

°F

December 22, 08:32

Trend:

stable

Yesterday:

53.2°F

Tomorrow:

52.9°F

Sunrise:

08:26

Sunset:

17:40

Day Length:

9 h. 14 min.

Istanbul in December

Minimum:

45.9°F

Average:

49.8°F

Maximum:

52.0°F

Sea water temperature in Istanbul today

As of now, in Istanbul, the water temperature is 52.9°F. Swimming in water of this temperature is considered as extremely cold, and there's a substantial risk of hypothermia if exposed for more than a brief duration. Today's reading is 0.2°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

Today's water temperature is considerably lower than the average registered over the last two weeks, indicating a slight cooling 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 56.0°F on 2019, while the historical minimum was 50.0°F on 2016.

Over the past two weeks, the water temperature has closely aligned with historical averages for those days. The forecast for the upcoming week shows a gradual cooling trend. The average temperature is expected to be 52.4°F, the minimum temperature may reach 51.6°F, and the maximum might stay at 52.9°F.

Daily water temperature in Istanbul

Date Current Year

actual* / forecast**

last year 10 years average
Dec 8 55.5°F 56.4°F 55.7°F
Dec 9 55.6°F 56.0°F 55.4°F
Dec 10 55.7°F 55.5°F 55.2°F
Dec 11 55.6°F 55.8°F 55.0°F
Dec 12 54.3°F 55.3°F 54.9°F
Dec 13 54.3°F 55.0°F 54.7°F
Dec 14 54.0°F 54.4°F 54.2°F
Dec 15 53.9°F 53.0°F 53.9°F
Dec 16 53.4°F 52.5°F 53.5°F
Dec 17 54.0°F 52.4°F 53.4°F
Dec 18 53.5°F 54.0°F 53.4°F
Dec 19 52.9°F 53.6°F 53.3°F
Dec 20 53.6°F 53.5°F 53.3°F
Dec 21 53.2°F 53.2°F 53.0°F
Dec 22 52.9°F 53.0°F 52.7°F
Dec 23 52.9°F 53.4°F 52.7°F
Dec 24 52.7°F 53.5°F 52.5°F
Dec 25 52.7°F 54.3°F 52.5°F
Dec 26 52.6°F 54.8°F 52.4°F
Dec 27 52.3°F 54.5°F 52.1°F
Dec 28 52.1°F 53.2°F 51.9°F
Dec 29 51.6°F 52.1°F 51.4°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 50.3°F in Winter, 53.4°F in Spring, 73.5°F in Summer, and 67.0°F in Autumn.

Popular neighboring cities and resorts

City Water temperature* Distance**
Üsküdar 53.2°F 3mi
Esenler 52.7°F 4mi
Bahçelievler 52.7°F 5mi
Bağcılar 52.7°F 5mi
Sultangazi 52.4°F 8mi
Umraniye 53.0°F 9mi
Maltepe 52.6°F 12mi
Yalova 52.5°F 30mi
Bursa 51.1°F 57mi

* current water temperature in this city

** straight line distance from Istanbul