Current sea water temperature:
+68.0°F
| Minimum sea water temperature in October: | 73.2°F |
| Maximum sea water temperature in October: | 58.8°F |
| Average sea water temperature in October: | 66.8°F |
| more information | |
14 days
forecast
forecast
| Istanbul |
monthly
weather
weather
| Istanbul |
Sea water temperature for the last 10 days:
| October 4 | 68.0°F | September 29 | 69.3°F |
| October 3 | 67.8°F | September 28 | 70.3°F |
| October 2 | 69.1°F | September 27 | 70.7°F |
| October 1 | 68.5°F | September 26 | 70.9°F |
| September 30 | 68.9°F | September 25 | 71.1°F |
Monthly sea water temperature, °F
When is the warmest sea in Istanbul?
Based on the data about daily sea water temperature for the last three years the warmest sea in Istanbul was noticed in August, July and September.
Monthly Sea Temperatures in Istanbul, °F
Sea water temperature in August, °F
Show year:
2026
2025
2024
The average sea water temperature in August of 2026 was 73.6°F. The highest and lowest sea temperatures during the month were 75.6°F and 69.3°F.
Sea water temperature in July, °F
Show year:
2026
2025
2024
The average sea water temperature in July of 2026 was 72.4°F. The highest and lowest sea temperatures during the month were 73.9°F and 70.3°F.
Sea water temperature in September, °F
Show year:
2026
2025
2024
The average sea water temperature in September of 2026 was 72.6°F. The highest and lowest sea temperatures during the month were 75.4°F and 68.9°F.
current
weather
weather
| Istanbul |
weather in
October
October
| Istanbul |
Best time for vacation in Istanbul
Istanbul on a weather map
Places in Turkey:
Name
°F
24 Hours Forecast
Istanbul
Local time: 05:31
October 05, monday
0600
61°F
SW
6 mph
6 mph
0900
63°F
SW
6 mph
6 mph
1200
68°F
SW
10 mph
10 mph
1500
68°F
SW
13 mph
13 mph
1800
66°F
SW
13 mph
13 mph
2100
64°F
SW
9 mph
9 mph
October 06, tuesday
0000
63°F
SW
6 mph
6 mph
0300
61°F
SW
5 mph
5 mph
