Measurements:
°C
°F
CURRENT WEATHER
13:36
Istanbul
54°F
NW 12 mph
Feels like: 50°F
Precip: 100%
World Resorts Turkey Istanbul Weather

7 Day Weather Forecast

01.29
thu
DAY
52°F
N 9 mph
precip
100%
NIGHT
54°F
N 18 mph
precip
0%
01.30
fri
DAY
50°F
E 11 mph
precip
100%
NIGHT
44°F
S 7 mph
precip
84%
01.31
sat
DAY
42°F
SW 12 mph
precip
62%
NIGHT
40°F
SW 10 mph
precip
85%
02.01
sun
DAY
42°F
SW 16 mph
precip
0%
NIGHT
38°F
SW 22 mph
precip
100%
02.02
mon
DAY
34°F
S 19 mph
precip
100%
NIGHT
34°F
SW 8 mph
precip
0%
02.03
tue
DAY
36°F
W 3 mph
precip
0%
NIGHT
38°F
NE 2 mph
precip
0%
02.04
wed
DAY
44°F
NE 7 mph
precip
0%
NIGHT
44°F
N 3 mph
precip
0%

Istanbul Sea Water Temperature in January, °F

Select Year: 2026 2025 2024

The average sea surface temperature in January 2026 for Istanbul was 10.7°F. The maximum and minimum values were 9.7°F and 11.8°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 53.2 °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