15-Day Weather Forecast - Barcelona

15-day weather forecast for Barcelona: temperatures from 14°C (57°F) to 31°C (88°F). Average daily high 27°C (81°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°20°TodaySep26°20°Tmrw28°20°Sun31°21°Mon29°21°Tue31°20°Wed29°19°Thu25°21°Fri26°18°Sat25°21°Sun27°21°Mon25°20°Tue28°18°Wed22°19°Thu24°14°Fri
Colour scale for daily high temperature bars

15-Day Weather Forecast

Updated just now
  • Date
    High / Low
  • Fri, Sep 11Today
    +27°/+20°
    feels +29°13 km/hUV 6 · Hi
    07:2720:07
  • Sat, Sep 12Tomorrow
    +26°/+20°
    feels +28°0.1 mm · 0%13 km/hUV 6 · Hi
    07:2820:06
  • Sun, Sep 13Sun
    +28°/+20°
    feels +29°14 km/hUV 6 · Hi
    07:2920:04
  • Mon, Sep 14Mon
    +31°/+21°
    feels +33°17 km/hUV 6 · Hi
    07:3020:02
  • Tue, Sep 15Tue
    +29°/+21°
    feels +31°12 km/hUV 6 · Hi
    07:3120:00
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  • Wed, Sep 16Wed
    +31°/+20°
    feels +33°0 mm · 9%12 km/hUV 5 · Mod
    07:3219:59
  • Thu, Sep 17Thu
    +29°/+19°
    feels +32°0 mm · 10%13 km/hUV 6 · Mod
    07:3319:57
  • Fri, Sep 18Fri
    +25°/+21°
    feels +28°2.7 mm · 22%13 km/hUV 5 · Mod
    07:3419:55
  • Sat, Sep 19Sat
    +26°/+18°
    feels +28°0 mm · 20%13 km/hUV 4 · Mod
    07:3519:54
  • Sun, Sep 20Sun
    +25°/+21°
    feels +26°0 mm · 14%14 km/hUV 5 · Mod
    07:3619:52
  • Mon, Sep 21Mon
    +27°/+21°
    feels +29°1.2 mm · 12%11 km/hUV 6 · Mod
    07:3719:50
  • Tue, Sep 22Tue
    +25°/+20°
    feels +25°0 mm · 12%11 km/hUV 5 · Mod
    07:3819:49
  • Wed, Sep 23Wed
    +28°/+18°
    feels +29°0 mm · 29%17 km/hUV 2 · Low
    07:3919:47
  • Thu, Sep 24Thu
    +22°/+19°
    feels +26°0.6 mm · 23%19 km/hUV 3 · Low
    07:4019:45
  • Fri, Sep 25Fri
    +24°/+14°
    feels +20°0 mm · 16%20 km/hUV 5 · Mod
    07:4119:43

Weather Insight

Barcelona's 15-day outlook ranges from a low of 14°C to a high of 31°C, with an average daytime high near 27°C. That's 1° above the long-term average high of 26°C for this time of year. It continues a recent pattern — 27 of the last 28 days with published data have run warmer than normal. Air quality is currently good (AQI 37), with no notable outdoor health concerns.

Today vs Normal

27°C+1° above normal

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

27 of the last 28 days with published data ran above normal.

It continues that pattern - today's forecast is also running above normal.

2026-08-28: 29°C29°2026-08-29: 30°C30°2026-08-30: 32°C32°2026-08-31: 31°C31°2026-09-01: 30°C30°2026-09-02: 32°C32°2026-09-03: 33°C33°2026-09-04: 36°C36°2026-09-05: 35°C35°2026-09-06: 36°C36°2026-09-07: 33°C33°2026-09-08: 34°C34°

Red = above normal, blue = at or below · last 12 days

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 Barcelona

Over the next 15 days, Barcelona is forecast to see temperatures ranging from 13°C to 32°C, averaging a daily high of 27°C. The extended outlook indicates occasional showers on 4 days, with 4.6 mm total accumulation. Conditions are suitable for most outdoor activities; carry an umbrella on days with showers.