15-Day Weather Forecast - Istanbul

15-day weather forecast for Istanbul: temperatures from 16°C (61°F) to 30°C (86°F). Average daily high 25°C (77°F) over the next 15 days.

Hourly Forecast by Day

Today·11 Sep
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Temperature · peaks at +27°C

15-Day Temperature Trend

27°21°TodaySep27°19°Tmrw25°20°Sun24°20°Mon25°18°Tue21°18°Wed23°16°Thu25°17°Fri27°19°Sat30°19°Sun30°22°Mon22°16°Tue22°16°Wed24°16°Thu27°19°Fri
Colour scale for daily high temperature bars

15-Day Weather Forecast

Updated just now
  • Date
    High / Low
  • Fri, Sep 11Today
    +27°/+21°
    feels +28°23 km/hUV 6 · Hi
    06:4019:20
  • Sat, Sep 12Tomorrow
    +27°/+19°
    feels +30°17 km/hUV 6 · Hi
    06:4119:18
  • Sun, Sep 13Sun
    +25°/+20°
    feels +24°0.4 mm · 46%27 km/hUV 6 · Mod
    06:4219:17
  • Mon, Sep 14Mon
    +24°/+20°
    feels +22°1.3 mm · 28%21 km/hUV 4 · Mod
    06:4319:15
  • Tue, Sep 15Tue
    +25°/+18°
    feels +22°0 mm · 3%25 km/hUV 6 · Mod
    06:4419:13
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  • Wed, Sep 16Wed
    +21°/+18°
    feels +21°4.5 mm · 38%15 km/hUV 6 · Mod
    06:4519:11
  • Thu, Sep 17Thu
    +23°/+16°
    feels +24°0.6 mm · 15%12 km/hUV 4 · Mod
    06:4619:10
  • Fri, Sep 18Fri
    +25°/+17°
    feels +25°0 mm · 17%16 km/hUV 5 · Mod
    06:4719:08
  • Sat, Sep 19Sat
    +27°/+19°
    feels +27°0 mm · 6%11 km/hUV 6 · Mod
    06:4819:06
  • Sun, Sep 20Sun
    +30°/+19°
    feels +29°0 mm · 2%9 km/hUV 6 · Mod
    06:4919:05
  • Mon, Sep 21Mon
    +30°/+22°
    feels +30°0 mm · 12%23 km/hUV 6 · Mod
    06:5019:03
  • Tue, Sep 22Tue
    +22°/+16°
    feels +22°7.8 mm · 10%28 km/hUV 6 · Mod
    06:5119:01
  • Wed, Sep 23Wed
    +22°/+16°
    feels +20°0 mm · 12%12 km/hUV 6 · Mod
    06:5219:00
  • Thu, Sep 24Thu
    +24°/+16°
    feels +25°0 mm · 12%11 km/hUV 4 · Mod
    06:5318:58
  • Fri, Sep 25Fri
    +27°/+19°
    feels +26°0 mm · 20%8 km/hUV 5 · Mod
    06:5418:56

Weather Insight

Istanbul's 15-day outlook ranges from a low of 16°C to a high of 30°C, with an average daytime high near 25°C. That's 1° below the long-term average high of 26°C for this time of year. Air quality is currently good (AQI 40), with no notable outdoor health concerns.

Today vs Normal

27°C+1° above normal

The long-term average high for today is 26°C.

Air Quality

Air Quality
Good

Air quality is considered satisfactory, and air pollution poses little or no risk. It’s a good day to be active outside.

Extended Outlook for Istanbul

Over the next 15 days, Istanbul is forecast to see temperatures ranging from 15°C to 31°C, averaging a daily high of 25°C. The extended outlook indicates occasional showers on 5 days, with 14.6 mm total accumulation. Conditions are suitable for most outdoor activities; carry an umbrella on days with showers.