Measurements:
°C
°F
Istanbul
54°F
N 12 mph
Feels like: 50°F
Precip: 100%
World Resorts Turkey Istanbul Weather

Istanbul Sea Water Temperature

Current Sea Water Temperature:
+53.8°F
Maximum Sea Water Temperature in December: 62.4°F
Minimum Sea Water Temperature in December: 48.2°F
Average water temperature in December: 53.9°F

Sea Water Temperature for the Last 10 Days:

December 21 53.8°F December 16 53.6°F
December 20 54.4°F December 15 54.2°F
December 19 53.8°F December 14 54.2°F
December 18 54.0°F December 13 54.6°F
December 17 54.6°F December 12 54.6°F

When is the Warmest Sea for Istanbul?

According to our data for the last three years for Istanbul the highest average sea water temperature was in August, July and September.

Average Water Temperature by Month, °F

Sea Water Temperature in August

Select Year: 2024 2023 2022

The average sea surface temperature in August 2024 for Istanbul was 78.8°F. The maximum and minimum values were 74.4°F and 81.0°F respectively.

Sea Water Temperature in July

Select Year: 2024 2023 2022

The average sea surface temperature in July 2024 for Istanbul was 78.9°F. The maximum and minimum values were 72.2°F and 82.2°F respectively.

Sea Water Temperature in September

Select Year: 2024 2023 2022

The average sea surface temperature in September 2024 for Istanbul was 77.7°F. The maximum and minimum values were 73.6°F and 80.2°F respectively.

Best Time to Visit Istanbul
The most sunny months:
July 28 days
August 28 days
June 22 days
The most warm months:
July 88.8 °F
August 88.7 °F
June 83.0 °F
Warmest sea temperature:
August 78.9 °F
July 77.4 °F
September 76.0 °F
The most cold months:
January 48.3 °F
February 50.3 °F
December 53.3 °F
The most rainy months:
January 5 days
December 4 days
March 4 days
The most windy months:
August 14 mph
July 12 mph
January 12 mph

Istanbul on the Weather Map

Turkey Resorts:
NAME
Alanya +60
Antalya +58
Avsallar +60
Belek +64
Bodrum +64
Fethiye +60
Istanbul +54
Kas +62
Kemer +52
Konakli +60
Mahmutlar +60
Marmaris +60
Mersin +56
Okurcalar +60
Side +64
24 Hours Weather Forecast
Istanbul
Local time: 14:36
21 dec, saturday
1500 54°F
N
12 mph
1800 54°F
NE
9 mph
2100 52°F
NE
9 mph
22 dec, sunday
0000 50°F
SE
6 mph
0300 44°F
S
19 mph
0600 42°F
SE
11 mph
0900 44°F
SE
9 mph
1200 44°F
E
4 mph