Marmara
İstanbul 7-Day Weather Forecast
Detailed 7-day forecast for İstanbul: daily min/max temperature, precipitation chance, humidity, wind and agricultural frost risk.
Last updated: Oct 12, 2026 · OpenWeatherMap / Open-Meteo veri hattı
İstanbul 7-Day Forecast
| Date | Min | Max | Rain | Humidity | Wind | Frost Risk |
|---|---|---|---|---|---|---|
| Sun 27 Sept | 16° | 21° | 6.5 mm | %81 | 17 km/h | 0 |
| Mon 28 Sept | 16° | 19° | 14.5 mm | %86 | 19 km/h | 0 |
| Tue 29 Sept | 15° | 19° | 21.1 mm | %90 | 14 km/h | 0 |
| Wed 30 Sept | 16° | 18° | 20.9 mm | %81 | 21 km/h | 0 |
| Thu 01 Oct | 17° | 20° | 2.5 mm | %65 | 21 km/h | 0 |
| Fri 02 Oct | 17° | 17° | 0.1 mm | %66 | 16 km/h | 0 |
Data is sourced from OpenWeatherMap and updates automatically during the day.
İstanbul is located in the Marmara region of Türkiye, where climate conditions strongly affect agricultural production. Expected temperatures over the next 7 days range between 15°C and 21°C. The table below updates automatically every day using OpenWeatherMap data.
The 7-day forecast brings together daily minimum and maximum temperatures, precipitation, humidity and wind. When planning for İstanbul, you can schedule planting, harvest, spraying and irrigation around this data.
Each day also shows an agricultural frost risk score. The highest frost risk for İstanbul over the next 7 days is currently 0/100 (low). Bringing spraying forward before rainy days and using dry days for irrigation improves yield.
For more detailed hourly forecasts — temperature, rain and frost in 3-hour slots — use the interactive panel at the bottom of the page.
Get personalised alerts for İstanbul
Choose your location and switch to the interactive panel for hourly forecasts, spraying suitability and frost notifications.