World Resorts Turkey Istanbul Weather

Istanbul Sea Temperature in April

Average sea water temperature in April:
+51.6°F
Minimum sea water temperature in April: 59.4°F
Maximum sea water temperature in April: 45.7°F

Daily sea water temperature in April, °F

Show year:
2026
2025
2024

The average sea water temperature in April of 2026 was 51.0°F. The highest and lowest sea temperatures during the month were 54.1°F and 48.9°F.

Monthly sea water temperature in Istanbul, °F

Which Turkey resorts have warmest sea in April?

Place name April 2026 April 2025
Alanya 65.1°F 65.6°F
Obagol 65.1°F 65.6°F
Gazipasa 65.1°F 65.3°F
Konakli 65.1°F 65.6°F
Mahmutlar 65.1°F 65.6°F
Turkler 65.1°F 65.6°F
Avsallar 65.0°F 65.5°F
Kargicak 65.0°F 65.5°F
Bogazkent 65.0°F 65.2°F
Faralya 65.0°F 64.5°F
Belek 64.9°F 65.2°F
Kadriye 64.9°F 65.3°F
Kumkoy 64.9°F 65.3°F
Kundu 64.9°F 65.2°F
Iskenderun 64.9°F 65.6°F
Incekum 64.9°F 65.4°F
Okurcalar 64.9°F 65.4°F
Colakli 64.8°F 65.2°F
Kalkan 64.8°F 64.2°F
Oludeniz 64.8°F 64.5°F

Best time for vacation in Istanbul

Sunniest months:
July 28 days
August 28 days
June 22 days
Warmest months:
July 85.0 °F
August 84.7 °F
June 79.8 °F
Warmest sea temp:
August 75.8 °F
July 74.5 °F
September 73.4 °F
Coldest months:
January 48.6 °F
February 49.8 °F
December 52.9 °F
Rainiest months:
January 5 days
December 4 days
February 3 days
Windiest months:
August 13.7 mph
July 12.0 mph
September 11.9 mph

Istanbul on a weather map

Istanbul
+63°F
NE 13 mph
Feels like: +63°F
Precip.: 100%
Places in Turkey:
Name
°F
+68°F
+70°F
+68°F
+70°F
+70°F
+68°F
+72°F
+70°F
+70°F
+68°F
+68°F
+72°F
+70°F
+63°F
+72°F
24 Hours Forecast
Istanbul
Local time: 07:52
May 17, sunday
0900
63°F
NE
13 mph
1200
66°F
E
11 mph
1500
68°F
SE
7 mph
1800
64°F
S
13 mph
2100
59°F
SE
3 mph
May 18, monday
0000
59°F
SE
9 mph
0300
55°F
SE
4 mph
0600
55°F
SE
4 mph
Units of measurement: °C / °F