Measurements:
°C
°F
CURRENT WEATHER
14:26
Istanbul
64°F
SE 5 mph
Feels like: 64°F
Precip: 0%
World Resorts Turkey Istanbul Weather

7 Day Weather Forecast

04.19
sat
DAY
64°F
SE 7 mph
precip
0%
NIGHT
52°F
S 6 mph
precip
0%
04.20
sun
DAY
62°F
E 4 mph
precip
0%
NIGHT
56°F
SW 2 mph
precip
0%
04.21
mon
DAY
68°F
W 4 mph
precip
0%
NIGHT
56°F
SW 7 mph
precip
0%
04.22
tue
DAY
68°F
SW 11 mph
precip
0%
NIGHT
52°F
SW 10 mph
precip
0%
04.23
wed
DAY
64°F
SW 6 mph
precip
0%
NIGHT
54°F
SW 7 mph
precip
0%
04.24
thu
DAY
66°F
SW 8 mph
precip
0%
NIGHT
56°F
SW 2 mph
precip
0%
04.25
fri
DAY
64°F
NE 7 mph
precip
0%
NIGHT
58°F
N 3 mph
precip
0%

Istanbul Sea Water Temperature in April, °F

Select Year: 2025 2024 2023

The average sea surface temperature in April 2025 for Istanbul was 10.5°F. The maximum and minimum values were 9.5°F and 12.1°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 88.8 °F
August 88.7 °F
June 83.0 °F
Warmest sea temperature:
August 78.9 °F
July 77.4 °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