World Resorts Turkey Istanbul Weather

Istanbul Sea Temperature in May

Average sea water temperature in May:
+59.8°F
Minimum sea water temperature in May: 68.4°F
Maximum sea water temperature in May: 51.8°F

Daily sea water temperature in May, °F

Show year:
2025
2024
2023

The average sea water temperature in May of 2025 was 57.1°F. The highest and lowest sea temperatures during the month were 61.7°F and 51.8°F.

Monthly sea water temperature in Istanbul, °F

Which Turkey resorts have warmest sea in May?

Place name May 2025 May 2024
Adana 72.1°F 72.8°F
Mersin 72.0°F 72.9°F
Kundu 71.6°F 71.8°F
Kumkoy 71.5°F 71.8°F
Iskenderun 71.3°F 72.7°F
Antalya 71.3°F 71.6°F
Kadriye 71.3°F 71.7°F
Belek 71.3°F 71.7°F
Konyaalti 71.3°F 71.7°F
Konakli 71.3°F 72.0°F
Avsallar 71.2°F 72.0°F
Turkler 71.2°F 72.0°F
Okurcalar 71.2°F 71.9°F
Incekum 71.2°F 71.9°F
Bogazkent 71.1°F 71.6°F
Camyuva 71.1°F 71.4°F
Kiris 71.1°F 71.4°F
Tekirova 71.1°F 71.4°F
Alanya 71.1°F 71.9°F
Arsuz 71.0°F 72.7°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 9 mph
Feels like: +45°F
Precip.: 0%
Places in Turkey:
Name
°F
+54°F
+54°F
+54°F
+57°F
+57°F
+57°F
+45°F
+57°F
+54°F
+54°F
+55°F
+57°F
+57°F
+48°F
+55°F
24 Hours Forecast
Istanbul
Local time: 17:16
December 16, tuesday
1800
48°F
SW
9 mph
2100
46°F
SW
9 mph
December 17, wednesday
0000
46°F
SW
7 mph
0300
46°F
SW
7 mph
0600
46°F
W
8 mph
0900
48°F
W
9 mph
1200
54°F
W
11 mph
1500
54°F
SW
10 mph
Units of measurement: °C / °F