What is the current water temperature in Istanbul?

Q: What is the current water temperature in Istanbul?

As of now, in Istanbul, the water temperature is 18.66°C. Swimming in water of this temperature is generally concidered to be cool, and most people won't really enjoy it.

Turkey > Istanbul

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.

65.6

°F

October 17, 11:46

Trend:

decreasing

Yesterday:

66.8°F

Tomorrow:

65.3°F

Sunrise:

07:17

Sunset:

18:21

Day Length:

11 h. 4 min.

Istanbul in October

Minimum:

46.6°F

Average:

50.8°F

Maximum:

53.0°F

Sea water temperature in Istanbul today

As of now, in Istanbul, the water temperature is 65.6°F. Swimming in water of this temperature is generally concidered to be cool, and most people won't really enjoy it. Today's reading is 1.3°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 fall a bit.

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 71.4°F on 2020, while the historical minimum was 64.8°F on 2022.

latest data

last year

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 shows a gradual cooling trend. The average temperature is expected to be 64.5°F, the minimum temperature may reach 63.7°F, and the maximum might stay at 65.3°F.

Daily water temperature in Istanbul

Date	Current Year actual* / forecast**	last year	10 years average
Oct 3	67.1°F	70.4°F	69.8°F
Oct 4	67.4°F	69.7°F	69.7°F
Oct 5	67.3°F	69.4°F	69.5°F
Oct 6	67.0°F	69.0°F	69.3°F
Oct 7	66.6°F	68.6°F	68.9°F
Oct 8	67.0°F	68.2°F	68.7°F
Oct 9	67.2°F	68.1°F	68.5°F
Oct 10	67.4°F	67.7°F	68.1°F
Oct 11	67.4°F	68.1°F	68.2°F
Oct 12	68.0°F	66.9°F	67.9°F
Oct 13	68.8°F	66.4°F	67.8°F
Oct 14	68.6°F	67.0°F	67.9°F
Oct 15	67.7°F	67.3°F	67.4°F
Oct 16	66.8°F	67.7°F	67.1°F
Oct 17	65.6°F	67.2°F	66.9°F
Oct 18	65.3°F	66.8°F	66.6°F
Oct 19	65.1°F	65.9°F	66.4°F
Oct 20	64.7°F	66.2°F	66.0°F
Oct 21	64.4°F	65.8°F	65.7°F
Oct 22	64.2°F	65.4°F	65.5°F
Oct 23	64.0°F	65.1°F	65.2°F
Oct 24	63.7°F	66.2°F	65.0°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 79 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	65.4°F	3mi
Esenler	65.7°F	4mi
Bahçelievler	65.7°F	5mi
Bağcılar	65.7°F	5mi
Sultangazi	65.4°F	8mi
Umraniye	65.3°F	9mi
Maltepe	65.3°F	12mi
Yalova	65.0°F	30mi
Bursa	64.9°F	57mi

* current water temperature in this city

** straight line distance from Istanbul