Current sea water temperature:
+64.8°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: | 66.7°F |
| more information | |
14 days
forecast
forecast
| Istanbul |
monthly
weather
weather
| Istanbul |
Sea water temperature for the last 10 days:
| October 24 | 64.8°F | October 19 | 64.0°F |
| October 23 | 63.9°F | October 18 | 64.6°F |
| October 22 | 63.9°F | October 17 | 65.5°F |
| October 21 | 64.2°F | October 16 | 66.6°F |
| October 20 | 63.5°F | October 15 | 67.6°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: 07:33
October 25, sunday
0900
61°F
SW
7 mph
7 mph
1200
64°F
W
6 mph
6 mph
1500
66°F
SW
6 mph
6 mph
1800
63°F
SW
9 mph
9 mph
2100
61°F
SW
7 mph
7 mph
October 26, monday
0000
61°F
SW
5 mph
5 mph
0300
59°F
SW
5 mph
5 mph
0600
57°F
SW
4 mph
4 mph
