What is the weather like in Istanbul right now?
It is currently 25°C in Istanbul with cloudy. It feels like 25°C, humidity is 61% and the wind is NNE 21 km/h.
Today (Saturday) reaches a maximum of 25°C and a minimum of 21°C, with 1.5 mm of rain and 11.7 hours of sunshine. Sunrise is at 06:28 and sunset at 19:42.
Istanbul weather tomorrow
Tomorrow (Sunday) the maximum temperature in Istanbul is 28°C and the minimum 21°C. Around 0 mm of rain is expected with 11.7 hours of sunshine, and the chance of rain is 0%. The data is refreshed several times a day through Open-Meteo.
Istanbul weather this week and next week
Over the coming week the average maximum temperature in Istanbul sits around 28°C and the average minimum around 21°C. Roughly 1.5 mm of rain is expected, spread across 1 day, with 4 largely sunny days.
The warmest day in the 14 day forecast for Istanbul is Monday 7 Sept at 34°C. The coldest night falls on Saturday 29 Aug at 21°C. Click any day for hourly detail.
Rain, sunshine and UV in Istanbul
A daily rainfall total says little on its own: the same 5 mm can be one short downpour or a grey day of drizzle, which is why the hourly chart above is often the more useful of the two. Over the next fortnight the highest UV index for Istanbul is 7 — high enough to warrant sun protection in the middle of the day.
How reliable is a 14 day forecast?
The first three to five days are generally very accurate. After that the certainty drops off and it is better read as a trend than as an exact daily prediction. Our data comes from Open-Meteo, which combines national weather models — among them the Met Office, DWD and ECMWF — and recomputes them several times a day using measurements from stations worldwide.
Forecast for Istanbul last updated: 29 August 2026 at 14:25. See also all Turkey forecasts and the European weather map.