World Resorts Turkey Istanbul Weather

Istanbul 7 Days Forecast

17.05
sun
Day
63°F
NE 9 mph
Precip.
100%
Night
59°F
SE 7 mph
Precip.
80%
18.05
mon
Day
63°F
NE 7 mph
Precip.
0%
Night
61°F
NW 2 mph
Precip.
0%
19.05
tue
Day
68°F
W 7 mph
Precip.
0%
Night
61°F
SW 11 mph
Precip.
0%
20.05
wed
Day
68°F
S 12 mph
Precip.
0%
Night
63°F
SE 4 mph
Precip.
0%
21.05
thu
Day
59°F
S 14 mph
Precip.
100%
Night
61°F
S 7 mph
Precip.
0%
22.05
fri
Day
63°F
S 11 mph
Precip.
67%
Night
61°F
S 5 mph
Precip.
0%
23.05
sat
Day
63°F
S 9 mph
Precip.
73%
Night
61°F
SE 9 mph
Precip.
100%

Sea water temperature in May, °F

Show year:
2026
2025
2024

The average sea water temperature in May of 2026 was 55.7°F. The highest and lowest sea temperatures during the month were 59.4°F and 52.9°F.

Air temperature in Istanbul, °F

Precipitation total in Istanbul, in.

* Charts above show average data for the last 3 years.

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

Current weather
09:27
Istanbul
+63°F
NE 12 mph
Feels like: +63°F
Precip.: 80%
Places in Turkey:
Name
°F
Avsallar
+68°F
Alanya
+68°F
Antalya
+70°F
Belek
+70°F
Beldibi
+70°F
Bodrum
+68°F
Kas
+72°F
Kemer
+70°F
Konakli
+68°F
Marmaris
+68°F
Okurcalar
+68°F
Oludeniz
+72°F
Side
+70°F
Istanbul
+63°F
Fethiye
+72°F
all places
24 Hours Forecast
Istanbul
Local time: 09:27
May 17, sunday
1200
63°F
NE
9 mph
1500
66°F
SE
4 mph
1800
64°F
S
12 mph
2100
63°F
S
4 mph
May 18, monday
0000
59°F
SE
7 mph
0300
57°F
SE
6 mph
0600
55°F
SE
3 mph
0900
59°F
E
2 mph
Units of measurement: °C / °F