09.10
fri
fri
Day
70°F
NE 9 mph
Precip.
2%
2%
Night
66°F
N 3 mph
Precip.
2%
2%
10.10
sat
sat
Day
73°F
N 2 mph
Precip.
1%
1%
Night
68°F
SW 3 mph
Precip.
1%
1%
11.10
sun
sun
Day
72°F
NE 6 mph
Precip.
2%
2%
Night
68°F
E 2 mph
Precip.
11%
11%
12.10
mon
mon
Day
73°F
NE 2 mph
Precip.
10%
10%
Night
68°F
S 2 mph
Precip.
10%
10%
13.10
tue
tue
Day
72°F
SW 2 mph
Precip.
36%
36%
Night
64°F
S 11 mph
Precip.
24%
24%
14.10
wed
wed
Day
64°F
SW 17 mph
Precip.
34%
34%
Night
63°F
SW 14 mph
Precip.
26%
26%
15.10
thu
thu
Day
66°F
SW 18 mph
Precip.
19%
19%
Night
63°F
SW 12 mph
Precip.
20%
20%
16.10
fri
fri
Day
66°F
SW 12 mph
Precip.
3%
3%
Night
61°F
SW 7 mph
Precip.
8%
8%
17.10
sat
sat
Day
66°F
SW 8 mph
Precip.
8%
8%
Night
61°F
SW 7 mph
Precip.
6%
6%
18.10
sun
sun
Day
66°F
W 6 mph
Precip.
3%
3%
Night
61°F
SW 6 mph
Precip.
17%
17%
19.10
mon
mon
Day
59°F
S 17 mph
Precip.
25%
25%
Night
54°F
E 2 mph
Precip.
24%
24%
20.10
tue
tue
Day
59°F
E 6 mph
Precip.
8%
8%
Night
57°F
W 4 mph
Precip.
2%
2%
21.10
wed
wed
Day
63°F
W 7 mph
Precip.
4%
4%
Night
61°F
SW 12 mph
Precip.
22%
22%
22.10
thu
thu
Day
66°F
SW 9 mph
Precip.
22%
22%
Night
64°F
SW 9 mph
Precip.
27%
27%
sea water
temperature
temperature
| Istanbul |
monthly
weather
weather
| Istanbul |
current
weather
weather
| Istanbul |
7 days
forecast
forecast
| Istanbul |
Sea water temperature in October, °F
Show year:
2025
2024
2023
The average sea water temperature in October of 2025 was 67.3°F. The highest and lowest sea temperatures during the month were 70.9°F and 63.5°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
Istanbul on a weather map
Places in Turkey:
Name
°F
24 Hours Forecast
Istanbul
Local time: 08:16
October 09, friday
0900
66°F
NE
6 mph
6 mph
1200
70°F
NE
9 mph
9 mph
1500
72°F
NE
9 mph
9 mph
1800
70°F
NE
5 mph
5 mph
2100
68°F
N
4 mph
4 mph
October 10, saturday
0000
66°F
N
3 mph
3 mph
0300
66°F
N
3 mph
3 mph
0600
66°F
NE
3 mph
3 mph
