Istanbul weather in January 2025

Expect 8°C daytime maximum temperatures in the shade with on average 5 hours of sunshine per day in Istanbul in January. Check more long-term weather averages for Istanbul in January before you book your next holiday to Turkey in 2025/2026.

  • 8°C maximum daytime temperature in January in Istanbul8
    8°C max day temperature
  • 5 hours of sunshine per day
  • 19 days with some rainfall in January in Istanbul19
    19 days with some rainfall
  • 2°C minimum night-time temperature in January in Istanbul2
    2°C min night temperature
  • 10 hours of daylight per day in January in Istanbul10
    10 hours of daylight per day
  • No heat & humidity in January in Istanbul0
    No heat & humidity
  • 110 mm monthly rainfall in January in Istanbul110
    110 mm of monthly rainfall
  • UV (maximum) index 2 (Low) in January in Istanbul2
    2 (Low) UV index
  • 8°C sea temperature in January in Istanbul8
    8°C sea temperature

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The January 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.

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

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More about Turkey

How warm is it in Istanbul in January?

Daytime temperatures usually reach 8°C in Istanbul in January, falling to 2°C at night.

How sunny is it in Istanbul in January?

There are normally 5 hours of bright sunshine each day in Istanbul in January - that's 49% of daylight hours.

Is the sea cold around Istanbul in January?

The average sea temperature around Istanbul in January is 8°C.

Does it rain in Istanbul in January?

There are usually 19 days with some rain in Istanbul in January and the average monthly rainfall is 110mm.

Istanbul January sunrise & sunset times

Browse the sunrise and sunset times for Istanbul in January 2025. Select a month to view Istanbul sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Wednesday, 1st January 2025 08:29 17:47
Thursday, 16th January 2025 08:26 18:02
Friday, 31st January 2025 08:16 18:20

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