grib = GRIdded Binary (NWP model format) • grab = fetch it for any location worldwide
3-day forecast for Istanbul
- Sat 19 Sep: 18–25°C, overcast, no precipitation, wind up to 6 m/s
- Sun 20 Sep: 19–25°C, overcast, no precipitation, wind up to 7 m/s
- Mon 21 Sep: 19–26°C, overcast, no precipitation, wind up to 3 m/s
As of 19 Sep 2026. Data: Open-Meteo (CC BY 4.0). The live hourly chart is above.
Istanbul has a Mediterranean climate with warm summers, cool winters with occasional snow, and rainfall mainly in autumn and winter. This page shows the hourly weather forecast for Istanbul, Turkey for the next 7 days — temperature, precipitation, wind speed, atmospheric pressure, and cloud cover hour by hour, updated every 3 hours from Open-Meteo.