Istanbul weather live forecast

Today's maximum temperature in Istanbul is expected to be 22°C. Select a day from the live weather forecast for Istanbul, Turkey for more weather parameters.

5-day weather forecast updated at 04:00 on Thursday 18th September 2025 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 Thursday 18th September 2025

Expect sunshine and showers in Istanbul, Turkey with a maximum temperature of 22°C, maximum UV of 5 (Moderate) and 7 hours of bright sunshine. There are 0-2 mm of rainfall expected with 7% chance of some rain and a moderate breeze of 27 kph from the north.

  • 22°C maximum temperature22
    °C maximum temperature
  • 19°C minimum temperature19
    °C minimum temperature
  • Sunshine and showers
    sunshine and showers
  • 7 hours of bright sunshine7
    hours of sunshine
  • UV (maximum) index 5 (Moderate)5
    UV index (Moderate)
  • 7% chance of some rain7
    % chance of some rain
  • 0-2 mm of rainfall expected<2
    mm of rainfall expected
  • No heat & humidity0
    no heat & humidity
  • Moderate breeze of 27 kph from the North27
    kph wind from N

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Istanbul weather for Friday 19th September 2025

Expect scattered clouds in Istanbul, Turkey with a maximum temperature of 24°C, maximum UV of 5 (Moderate) and 8 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 26 kph from the north.

  • 24°C maximum temperature24
    °C maximum temperature
  • 18°C minimum temperature18
    °C minimum temperature
  • Scattered clouds
    scattered clouds
  • 8 hours of bright sunshine8
    hours of sunshine
  • UV (maximum) index 5 (Moderate)5
    UV index (Moderate)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • 24°C wind chill24
    °C wind chill
  • Moderate breeze of 26 kph from the North26
    kph wind from N

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Istanbul weather for Saturday 20th September 2025

Expect scattered clouds in Istanbul, Turkey with a maximum temperature of 25°C, maximum UV of 5 (Moderate) and 8 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 23 kph from the north-east.

  • 25°C maximum temperature25
    °C maximum temperature
  • 17°C minimum temperature17
    °C minimum temperature
  • Scattered clouds
    scattered clouds
  • 8 hours of bright sunshine8
    hours of sunshine
  • UV (maximum) index 5 (Moderate)5
    UV index (Moderate)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • 25°C wind chill25
    °C wind chill
  • Moderate breeze of 23 kph from the North-East23
    kph wind from NE

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Istanbul weather for Sunday 21st September 2025

Expect scattered clouds in Istanbul, Turkey with a maximum temperature of 25°C, maximum UV of 6 (High) and 10 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 27 kph from the north-east.

  • 25°C maximum temperature25
    °C maximum temperature
  • 17°C minimum temperature17
    °C minimum temperature
  • Scattered clouds
    scattered clouds
  • 10 hours of bright sunshine10
    hours of sunshine
  • UV (maximum) index 6 (High)6
    UV index (High)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • No heat & humidity0
    no heat & humidity
  • Moderate breeze of 27 kph from the North-East27
    kph wind from NE

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Istanbul weather for Monday 22nd September 2025

Expect scattered clouds in Istanbul, Turkey with a maximum temperature of 28°C, low levels of heat & humidity, maximum UV of 5 (Moderate) and 10 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 22 kph from the north-east.

  • 28°C maximum temperature28
    °C maximum temperature
  • 18°C minimum temperature18
    °C minimum temperature
  • Scattered clouds
    scattered clouds
  • 10 hours of bright sunshine10
    hours of sunshine
  • UV (maximum) index 5 (Moderate)5
    UV index (Moderate)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • Low heat & humidityL
    low heat & humidity
  • Moderate breeze of 22 kph from the North-East22
    kph wind from NE

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Metric (°C / mm)  |  Imperial (°F / inches)

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