Istanbul weather in January 2025

Expect 46°F 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.

  • 46°F maximum daytime temperature in January in Istanbul46
    46°F max day temperature
  • 5 hours of sunshine per day
  • 19 days with some rainfall in January in Istanbul19
    19 days with some rainfall
  • 36°F minimum night-time temperature in January in Istanbul36
    36°F 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
  • 4.3 inches monthly rainfall in January in Istanbul4.3
    4.3 inches of monthly rainfall
  • UV (maximum) index 2 (Low) in January in Istanbul2
    2 (Low) UV index
  • 46°F sea temperature in January in Istanbul46
    46°F 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)  |  Imperial (°F)

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More about Turkey

How warm is it in Istanbul in January?

Daytime temperatures usually reach 46°F in Istanbul in January, falling to 36°F 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.

How warm is the sea around Istanbul in January?

The average sea temperature around Istanbul in January is 46°F.

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 4.3 inches.

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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