Current sea water temperature:
+44.6°F
| Minimum sea water temperature in March: | 52.2°F |
| Maximum sea water temperature in March: | 42.4°F |
| Average sea water temperature in March: | 47.4°F |
| more information | |
14 days
forecast
forecast
| Istanbul |
monthly
weather
weather
| Istanbul |
Sea water temperature for the last 10 days:
| March 17 | 44.6°F | March 12 | 45.9°F |
| March 16 | 45.9°F | March 11 | 45.7°F |
| March 15 | 46.0°F | March 10 | 46.0°F |
| March 14 | 46.4°F | March 9 | 46.4°F |
| March 13 | 46.0°F | March 8 | 45.1°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:
2025
2024
2023
The average sea water temperature in August of 2025 was 73.9°F. The highest and lowest sea temperatures during the month were 76.3°F and 70.3°F.
Sea water temperature in July, °F
Show year:
2025
2024
2023
The average sea water temperature in July of 2025 was 72.9°F. The highest and lowest sea temperatures during the month were 75.9°F and 69.3°F.
Sea water temperature in September, °F
Show year:
2025
2024
2023
The average sea water temperature in September of 2025 was 73.7°F. The highest and lowest sea temperatures during the month were 76.3°F and 71.4°F.
current
weather
weather
| Istanbul |
weather in
March
March
| Istanbul |
Best time for vacation in Istanbul
Istanbul on a weather map
Places in Turkey:
Name
°F
24 Hours Forecast
Istanbul
Local time: 13:25
March 17, tuesday
1500
52°F
SW
13 mph
13 mph
1800
50°F
SW
15 mph
15 mph
2100
45°F
SW
15 mph
15 mph
March 18, wednesday
0000
45°F
SW
15 mph
15 mph
0300
45°F
SW
14 mph
14 mph
0600
45°F
SW
12 mph
12 mph
0900
46°F
SW
14 mph
14 mph
1200
48°F
SW
16 mph
16 mph
