Istanbul weather live forecast

Today's maximum temperature in Istanbul is expected to be 26°C. Select a day from the live weather forecast for Istanbul, Turkey for more weather parameters.

Sunday
20th Sep
26

19

8

4
Monday
21st Sep
26

18

9

5
Tuesday
22nd Sep
21

15

1

1
Wednesday
23rd Sep
17

14

7

4
Thursday
24th Sep
20

12

11

4

5-day weather forecast updated at 04:00 on Sunday 20th September 2026 GMT

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The 5-day weather forecast for Turkey (Istanbul) is provided by the Swiss meteorological agency, meteoblue. Find out more about our data sources.

Istanbul weather forecast by day

Below are the detailed weather forecasts for Istanbul for the next 5 days.

Istanbul weather for Sunday 20th September 2026

Expect scattered clouds in Istanbul, Turkey with a maximum temperature of 26°C, maximum UV of 4 (Moderate) and 8 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 24 kph from the north-east.

26
°C maximum temperature
19
°C minimum temperature
scattered clouds
8
hours of sunshine
4
UV index (Moderate)
0
mm of rainfall expected
26
°C wind chill
24
kph wind from NE

Istanbul weather for Monday 21st September 2026

Expect scattered clouds in Istanbul, Turkey with a maximum temperature of 26°C, maximum UV of 5 (Moderate) and 9 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 12 kph from the north-east.

26
°C maximum temperature
18
°C minimum temperature
scattered clouds
9
hours of sunshine
5
UV index (Moderate)
0
mm of rainfall expected
26
°C wind chill
12
kph wind from NE

Istanbul weather for Tuesday 22nd September 2026

Expect broken clouds in Istanbul, Turkey with a maximum temperature of 21°C, maximum UV of 1 (Low) and 1 hour of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 19 kph from the north.

21
°C maximum temperature
15
°C minimum temperature
broken clouds
1
hour of sunshine
1
UV index (Low)
0
mm of rainfall expected
21
°C wind chill
19
kph wind from N

Istanbul weather for Wednesday 23rd September 2026

Expect scattered clouds in Istanbul, Turkey with a maximum temperature of 17°C, maximum UV of 4 (Moderate) and 7 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 15 kph from the north-west.

17
°C maximum temperature
14
°C minimum temperature
scattered clouds
7
hours of sunshine
4
UV index (Moderate)
0
mm of rainfall expected
0
no heat & humidity
15
kph wind from NW

Istanbul weather for Thursday 24th September 2026

Expect clear skies in Istanbul, Turkey with a maximum temperature of 20°C, maximum UV of 4 (Moderate) and 11 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 7 kph from the east.