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:
2025
2024
2023

The average sea water temperature in April of 2025 was 51.4°F. The highest and lowest sea temperatures during the month were 54.3°F and 49.1°F.

Monthly sea water temperature in Istanbul, °F

Which Turkey resorts have warmest sea in April?

Place name April 2025 April 2024
Adana 65.9°F 68.8°F
Yumurtalik 65.7°F 68.9°F
Iskenderun 65.6°F 67.6°F
Alanya 65.6°F 68.3°F
Konakli 65.6°F 68.1°F
Obagol 65.6°F 68.2°F
Mersin 65.6°F 68.4°F
Turkler 65.6°F 68.2°F
Arsuz 65.6°F 68.7°F
Mahmutlar 65.6°F 68.0°F
Avsallar 65.5°F 68.1°F
Kargicak 65.5°F 67.8°F
Incekum 65.4°F 68.0°F
Okurcalar 65.4°F 68.0°F
Gazipasa 65.3°F 67.7°F
Kadriye 65.3°F 68.5°F
Kumkoy 65.3°F 68.6°F
Kundu 65.2°F 68.6°F
Belek 65.2°F 68.5°F
Gazimagusa 65.2°F 67.6°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 48.7 °F
February 49.9 °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
+48°F
SW 17 mph
Feels like: +43°F
Precip.: 100%
Places in Turkey:
Name
°F
+59°F
+59°F
+54°F
+57°F
+55°F
+59°F
+48°F
+55°F
+59°F
+55°F
+59°F
+59°F
+59°F
+48°F
+55°F
24 Hours Forecast
Istanbul
Local time: 18:51
December 25, thursday
2100
48°F
SW
17 mph
December 26, friday
0000
46°F
SW
16 mph
0300
46°F
SW
14 mph
0600
45°F
SW
12 mph
0900
46°F
SW
9 mph
1200
48°F
SW
8 mph
1500
48°F
S
4 mph
1800
46°F
SE
4 mph
Units of measurement: °C / °F