15-Day Weather Forecast - Athens

15-day weather forecast for Athens: temperatures from 16°C (61°F) to 34°C (93°F). Average daily high 30°C (86°F) over the next 15 days.

Hourly Forecast by Day

Today·11 Sep
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Temperature · peaks at +34°C

15-Day Temperature Trend

34°20°TodaySep34°20°Tmrw30°23°Sun28°21°Mon28°20°Tue27°20°Wed29°16°Thu28°20°Fri30°23°Sat31°23°Sun32°23°Mon31°22°Tue28°21°Wed28°19°Thu28°22°Fri
Colour scale for daily high temperature bars

15-Day Weather Forecast

Updated just now
  • Date
    High / Low
  • Fri, Sep 11Today
    +34°/+20°
    feels +36°8 km/hUV 7 · Hi
    07:0319:39
  • Sat, Sep 12Tomorrow
    +34°/+20°
    feels +36°11 km/hUV 7 · Hi
    07:0419:37
  • Sun, Sep 13Sun
    +30°/+23°
    feels +32°0 mm · 35%13 km/hUV 7 · Hi
    07:0419:36
  • Mon, Sep 14Mon
    +28°/+21°
    feels +28°0 mm · 16%14 km/hUV 7 · Hi
    07:0519:34
  • Tue, Sep 15Tue
    +28°/+20°
    feels +26°0 mm · 13%15 km/hUV 6 · Hi
    07:0619:33
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  • Wed, Sep 16Wed
    +27°/+20°
    feels +26°0 mm · 15%13 km/hUV 7 · Hi
    07:0719:31
  • Thu, Sep 17Thu
    +29°/+16°
    feels +29°0 mm · 1%13 km/hUV 7 · Hi
    07:0819:30
  • Fri, Sep 18Fri
    +28°/+20°
    feels +30°0 mm · 13%10 km/hUV 7 · Hi
    07:0919:28
  • Sat, Sep 19Sat
    +30°/+23°
    feels +32°0 mm · 18%10 km/hUV 7 · Hi
    07:1019:27
  • Sun, Sep 20Sun
    +31°/+23°
    feels +33°1.2 mm · 20%8 km/hUV 7 · Hi
    07:1019:25
  • Mon, Sep 21Mon
    +32°/+23°
    feels +33°0 mm · 23%8 km/hUV 7 · Hi
    07:1119:23
  • Tue, Sep 22Tue
    +31°/+22°
    feels +31°0 mm · 20%8 km/hUV 6 · Hi
    07:1219:22
  • Wed, Sep 23Wed
    +28°/+21°
    feels +29°0 mm · 16%11 km/hUV 2 · Low
    07:1319:20
  • Thu, Sep 24Thu
    +28°/+19°
    feels +28°0 mm · 25%12 km/hUV 6 · Hi
    07:1419:19
  • Fri, Sep 25Fri
    +28°/+22°
    feels +29°0 mm · 13%23 km/hUV 6 · Hi
    07:1519:17

Weather Insight

Athens's 15-day outlook ranges from a low of 16°C to a high of 34°C, with an average daytime high near 30°C. That's 1° above the long-term average high of 29°C for this time of year. It continues a recent pattern — 14 of the last 19 days with published data have run warmer than normal. Air quality is currently good (AQI 35), with no notable outdoor health concerns.

Today vs Normal

34°C+5° above normal

The long-term average high for today is 29°C.

14 of the last 19 days with published data ran above normal.

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

2026-08-19: 34°C34°2026-08-20: 34°C34°2026-08-21: 34°C34°2026-08-22: 37°C37°2026-08-23: 36°C36°2026-08-24: 34°C34°2026-08-25: 36°C36°2026-08-26: 38°C38°2026-08-27: 34°C34°2026-08-28: 35°C35°2026-08-29: 31°C31°2026-08-30: 33°C33°

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 Athens

Over the next 15 days, Athens is forecast to see temperatures ranging from 16°C to 35°C, averaging a daily high of 30°C. The extended outlook indicates occasional showers on 1 days, with 1.2 mm total accumulation. Conditions are suitable for most outdoor activities; carry an umbrella on days with showers.