Measurements:
°C
°F
CURRENT WEATHER
12:07
Istanbul
54°F
NE 6 mph
Feels like: 52°F
Precip: 0%
World Resorts Turkey Istanbul Weather

14 Day Weather Forecast

12.18
thu
DAY
54°F
NE 6 mph
precip
0%
NIGHT
50°F
NE 2 mph
precip
0%
12.19
fri
DAY
54°F
S 2 mph
precip
0%
NIGHT
50°F
SW 6 mph
precip
0%
12.20
sat
DAY
56°F
SW 7 mph
precip
0%
NIGHT
50°F
SW 5 mph
precip
0%
12.21
sun
DAY
56°F
SW 8 mph
precip
0%
NIGHT
52°F
SW 7 mph
precip
73%
12.22
mon
DAY
54°F
SW 11 mph
precip
74%
NIGHT
50°F
SW 7 mph
precip
0%
12.23
tue
DAY
54°F
N 4 mph
precip
0%
NIGHT
54°F
N 3 mph
precip
84%
12.24
wed
DAY
58°F
N 9 mph
precip
100%
NIGHT
58°F
NE 9 mph
precip
100%
12.25
thu
DAY
58°F
NW 2 mph
precip
100%
NIGHT
54°F
SW 7 mph
precip
100%
12.26
fri
DAY
54°F
SW 12 mph
precip
28%
NIGHT
50°F
SW 17 mph
precip
68%
12.27
sat
DAY
50°F
SW 17 mph
precip
40%
NIGHT
48°F
SW 14 mph
precip
0%
12.28
sun
DAY
54°F
SW 10 mph
precip
0%
NIGHT
50°F
SW 4 mph
precip
0%
12.29
mon
DAY
50°F
E 14 mph
precip
100%
NIGHT
46°F
S 11 mph
precip
100%
12.30
tue
DAY
46°F
SW 6 mph
precip
0%
NIGHT
44°F
SW 7 mph
precip
80%
12.31
wed
DAY
46°F
SW 14 mph
precip
54%
NIGHT
42°F
SW 14 mph
precip
22%

Istanbul Sea Water Temperature in December, °F

Select Year: 2025 2024 2023

The average sea surface temperature in December 2025 for Istanbul was 59.4°F. The maximum and minimum values were 57.6°F and 61.6°F respectively.

Istanbul on the Weather Map

Best Time to Visit Istanbul
The most sunny months:
July 28 days
August 28 days
June 22 days
The most warm months:
July 88.9 °F
August 88.5 °F
June 83.1 °F
Warmest sea temperature:
August 78.7 °F
July 77.3 °F
September 76.0 °F
The most cold months:
January 48.5 °F
February 49.8 °F
December 53.3 °F
The most rainy months:
January 5 days
December 4 days
February 3 days
The most windy months:
August 14 mph
July 12 mph
September 12 mph
more details
Turkey Resorts:
NAME
F°
Alanya +62
Antalya +64
Avsallar +62
Beldibi +56
Belek +62
Bodrum +62
Fethiye +64
Istanbul +54
Kas +64
Kemer +56
Konakli +62
Marmaris +64
Mersin +58
Okurcalar +60
Side +60
all resorts
24 Hours Weather Forecast
Istanbul
Local time: 12:07
18 dec, thursday
1500 54°F
NE
5 mph
1800 52°F
NE
2 mph
2100 50°F
NW
1 mph
19 dec, friday
0000 50°F
NE
2 mph
0300 50°F
NW
1 mph
0600 50°F
NW
1 mph
0900 50°F
SW
2 mph
1200 54°F
S
2 mph