World Resorts Turkey Istanbul Weather

Istanbul Sea Temperature in May

Average sea water temperature in May:
+59.7°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:
2026
2025
2024

The average sea water temperature in May of 2026 was 58.0°F. The highest and lowest sea temperatures during the month were 62.6°F and 52.9°F.

Monthly sea water temperature in Istanbul, °F

Which Turkey resorts have warmest sea in May?

Place name May 2026 May 2025
Iskenderun 70.6°F 71.3°F
Konakli 70.4°F 71.3°F
Turkler 70.3°F 71.2°F
Alanya 70.3°F 71.1°F
Mersin 70.1°F 72.0°F
Avsallar 70.1°F 71.2°F
Obagol 70.1°F 71.0°F
Adana 70.0°F 72.1°F
Incekum 69.9°F 71.2°F
Okurcalar 69.9°F 71.2°F
Mahmutlar 69.9°F 70.8°F
Kargicak 69.7°F 70.7°F
Kumkoy 69.5°F 71.5°F
Kundu 69.5°F 71.6°F
Kadriye 69.5°F 71.3°F
Belek 69.5°F 71.3°F
Antalya 69.4°F 71.3°F
Bogazkent 69.4°F 71.1°F
Colakli 69.3°F 70.9°F
Side 69.3°F 70.8°F

Best time for vacation in Istanbul

Sunniest months:
July 28 days
August 28 days
June 23 days
Warmest months:
July 84.8 °F
August 84.6 °F
June 79.7 °F
Warmest sea temp:
August 75.7 °F
July 74.4 °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 13.5 mph
July 11.8 mph
September 11.8 mph

Istanbul on a weather map

Istanbul
+61°F
SW 6 mph
Feels like: +61°F
Precip.: 6%
Places in Turkey:
Name
°F
+70°F
+70°F
+61°F
+68°F
+57°F
+66°F
+54°F
+57°F
+59°F
+66°F
+70°F
+70°F
+64°F
+61°F
+70°F
24 Hours Forecast
Istanbul
Local time: 06:06
October 05, monday
0900
63°F
SW
6 mph
1200
68°F
SW
10 mph
1500
68°F
SW
13 mph
1800
66°F
SW
13 mph
2100
64°F
SW
9 mph
October 06, tuesday
0000
63°F
SW
6 mph
0300
61°F
SW
5 mph
0600
61°F
SW
6 mph
Units of measurement: °C / °F