Istanbul weather in April 2025

Expect 16°C daytime maximum temperatures in the shade with on average 8 hours of sunshine per day in Istanbul in April. Check more long-term weather averages for Istanbul in April before you book your next holiday to Turkey in 2025/2026.

  • 16°C maximum daytime temperature in April in Istanbul16
    16°C max day temperature
  • 8 hours of sunshine per day
  • 11 days with some rainfall in April in Istanbul11
    11 days with some rainfall
  • 7°C minimum night-time temperature in April in Istanbul7
    7°C min night temperature
  • 13 hours of daylight per day in April in Istanbul13
    13 hours of daylight per day
  • No heat & humidity in April in Istanbul0
    No heat & humidity
  • 50 mm monthly rainfall in April in Istanbul50
    50 mm of monthly rainfall
  • UV (maximum) index 5 (Moderate) in April in Istanbul5
    5 (Moderate) UV index
  • 10°C sea temperature in April in Istanbul10
    10°C sea temperature

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The April 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 April?

Daytime temperatures usually reach 16°C in Istanbul in April, falling to 7°C at night.

How sunny is it in Istanbul in April?

There are normally 8 hours of bright sunshine each day in Istanbul in April - that's 58% of daylight hours.

Is the sea cold around Istanbul in April?

The average sea temperature around Istanbul in April is 10°C.

Does it rain in Istanbul in April?

There are usually 11 days with some rain in Istanbul in April and the average monthly rainfall is 50mm.

Istanbul April sunrise & sunset times

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


Date Sunrise times Sunset times
Tuesday, 1st April 2025 06:47 19:29
Tuesday, 15th April 2025 06:25 19:44
Wednesday, 30th April 2025 06:03 20:00

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