Turkey weather in September 2025

Expect 75°F daytime maximum temperatures in the shade with on average 9 hours of sunshine per day in Turkey in September. Check more long-term weather averages for Turkey in September before you book your next holiday to Turkey in 2025/2026.

  • 75°F maximum daytime temperature in September in Turkey (Istanbul)75
    75°F max day temperature
  • 9 hours of sunshine per day
  • 7 days with some rainfall in September in Turkey (Istanbul)7
    7 days with some rainfall
  • 61°F minimum night-time temperature in September in Turkey (Istanbul)61
    61°F min night temperature
  • 12 hours of daylight per day in September in Turkey (Istanbul)12
    12 hours of daylight per day
  • No heat & humidity in September in Turkey (Istanbul)0
    No heat & humidity
  • 1.7 inches monthly rainfall in September in Turkey (Istanbul)1.7
    1.7 inches of monthly rainfall
  • UV (maximum) index 6 (High) in September in Turkey (Istanbul)6
    6 (High) UV index
  • 72°F sea temperature in September in Turkey (Istanbul)72
    72°F sea temperature

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The September weather guide for Turkey (Istanbul) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

Top Turkey destinations

Below are average maximum temperatures at popular countries, regions and places in Turkey in September. Select a holiday destination to see more weather parameters.

All Turkey regions

All Turkey destinations

Metric (°C)  |  Imperial (°F)

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More about Turkey

How hot is it in Turkey in September?

Daytime temperatures usually reach 75°F in Istanbul, Turkey in September, falling to 61°F at night.

How sunny is it in Turkey in September?

There are normally 9 hours of bright sunshine each day in Istanbul, Turkey in September - that's 71% of daylight hours.

How warm is the sea around Turkey in September?

The average sea temperature around Istanbul, Turkey in September is 72°F.

Does it rain in Turkey in September?

There are usually 7 days with some rain in Istanbul, Turkey in September and the average monthly rainfall is 1.7 inches.

Turkey September sunrise & sunset times

Browse the sunrise and sunset times for Turkey in September 2025. Select a month to view Turkey sunrise and sunset times for the next 12 months. The Turkey sunrise and sunset times shown below are for Istanbul.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 06:31 19:37
Monday, 15th September 2025 06:45 19:13
Tuesday, 30th September 2025 07:00 18:48

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