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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

55.0

°F

April 27, 16:37

Trend:

increasing

Yesterday:

53.9°F

Tomorrow:

55.2°F

Sunrise:

06:08

Sunset:

19:56

Day Length:

13 h. 48 min.

Istanbul in May

Minimum:

47.8°F

Average:

51.3°F

Maximum:

53.8°F

Sea water temperature in Istanbul today

As of now, in Istanbul, the water temperature is 55.0°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 0.5°F higher than the average recorded on this particular day in recent years. Since yesterday, there was a noticeable 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 57.7°F on 2024, while the historical minimum was 52.1°F on 2022.

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 56.0°F, with minimum temperature starting at 55.2°F, while the maximum might reach 56.7°F.

Daily water temperature in Istanbul

Date Current Year

actual* / forecast**

 last year 10 years average
Apr 13 50.9°F 49.9°F 51.7°F
Apr 14 51.3°F 49.6°F 51.6°F
Apr 15 51.7°F 50.4°F 52.2°F
Apr 16 52.0°F 50.4°F 52.7°F
Apr 17 51.3°F 52.0°F 53.1°F
Apr 18 51.2°F 52.1°F 53.2°F
Apr 19 51.9°F 51.5°F 53.2°F
Apr 20 52.6°F 50.5°F 53.2°F
Apr 21 53.1°F 51.8°F 53.3°F
Apr 22 53.1°F 52.9°F 53.3°F
Apr 23 52.7°F 54.9°F 53.5°F
Apr 24 52.8°F 54.5°F 53.7°F
Apr 25 52.4°F 54.5°F 54.0°F
Apr 26 53.9°F 52.6°F 54.1°F
Apr 27 55.0°F 53.4°F 54.4°F
Apr 28 55.2°F 53.2°F 54.7°F
Apr 29 55.4°F 52.9°F 54.9°F
Apr 30 55.7°F 53.5°F 55.1°F
May 1 56.2°F 53.3°F 55.7°F
May 2 56.5°F 53.8°F 55.9°F
May 3 56.5°F 52.4°F 55.9°F
May 4 56.7°F 53.4°F 56.2°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

January

February

March

April

May

June

July

August

September

October

November

December

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, 53.4°F in Spring, 73.2°F in Summer, and 67.2°F in Autumn.

Popular neighboring cities and resorts

City Water temperature* Distance**
Üsküdar 54.4°F 3mi
Esenler 55.4°F 4mi
Bahçelievler 55.4°F 5mi
Bağcılar 55.4°F 5mi
Sultangazi 54.8°F 8mi
Umraniye 54.4°F 9mi
Maltepe 57.1°F 12mi
Yalova 58.2°F 30mi
Bursa 58.1°F 57mi

* current water temperature in this city

** straight line distance from Istanbul