15-Day Weather Forecast - Adelaide

15-day weather forecast for Adelaide: temperatures from 7°C (45°F) to 25°C (77°F). Average daily high 19°C (66°F) over the next 15 days.

Hourly Forecast by Day

Today·11 Sep
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Temperature · peaks at +17°C

15-Day Temperature Trend

17°8°TodaySep21°12°Tmrw19°14°Sun16°13°Mon14°11°Tue15°8°Wed15°7°Thu20°10°Fri25°13°Sat20°12°Sun21°12°Mon22°14°Tue20°13°Wed21°13°Thu19°11°Fri
Colour scale for daily high temperature bars

15-Day Weather Forecast

Updated just now
  • Date
    High / Low
  • Fri, Sep 11Today
    +17°/+8°
    feels +19°11 km/hUV 6 · Hi
    06:2118:04
  • Sat, Sep 12Tomorrow
    +21°/+12°
    feels +23°17 km/hUV 6 · Hi
    06:2018:04
  • Sun, Sep 13Sun
    +19°/+14°
    feels +18°1.6 mm · 73%17 km/hUV 6 · Hi
    06:1818:05
  • Mon, Sep 14Mon
    +16°/+13°
    feels +15°1.3 mm · 42%19 km/hUV 6 · Hi
    06:1718:06
  • Tue, Sep 15Tue
    +14°/+11°
    feels +11°0.2 mm · 41%21 km/hUV 6 · Hi
    06:1518:06
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  • Wed, Sep 16Wed
    +15°/+8°
    feels +12°0 mm · 2%14 km/hUV 6 · Hi
    06:1418:07
  • Thu, Sep 17Thu
    +15°/+7°
    feels +15°9 km/hUV 6 · Hi
    06:1318:08
  • Fri, Sep 18Fri
    +20°/+10°
    feels +19°10 km/hUV 7 · Hi
    06:1118:09
  • Sat, Sep 19Sat
    +25°/+13°
    feels +22°0 mm · 4%17 km/hUV 4 · Mod
    06:1018:09
  • Sun, Sep 20Sun
    +20°/+12°
    feels +19°0 mm · 10%15 km/hUV 6 · Hi
    06:0818:10
  • Mon, Sep 21Mon
    +21°/+12°
    feels +21°0 mm · 16%17 km/hUV 2 · Low
    06:0718:11
  • Tue, Sep 22Tue
    +22°/+14°
    feels +23°0 mm · 22%14 km/hUV 7 · Hi
    06:0618:11
  • Wed, Sep 23Wed
    +20°/+13°
    feels +18°0 mm · 20%16 km/hUV 7 · Hi
    06:0418:12
  • Thu, Sep 24Thu
    +21°/+13°
    feels +20°0 mm · 16%16 km/hUV 4 · Mod
    06:0318:13
  • Fri, Sep 25Fri
    +19°/+11°
    feels +18°0 mm · 18%18 km/hUV 7 · Hi
    06:0118:14

Weather Insight

Adelaide's 15-day outlook ranges from a low of 7°C to a high of 25°C, with an average daytime high near 19°C. That's 2° above the long-term average high of 17°C for this time of year. It continues a recent pattern — 17 of the last 20 days with published data have run warmer than normal. Air quality is currently good (AQI 39), with no notable outdoor health concerns.

Today vs Normal

17°C0° below normal

The long-term average high for today is 17°C.

17 of the last 20 days with published data ran above normal.

That's a break from the pattern - today's forecast runs below normal even though the recent stretch mostly ran above.

2026-08-19: 16°C16°2026-08-20: 16°C16°2026-08-21: 16°C16°2026-08-22: 17°C17°2026-08-23: 19°C19°2026-08-24: 13°C13°2026-08-25: 16°C16°2026-08-26: 16°C16°2026-08-27: 18°C18°2026-08-28: 21°C21°2026-08-29: 20°C20°2026-08-30: 20°C20°

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 Adelaide

Over the next 15 days, Adelaide is forecast to see temperatures ranging from 7°C to 25°C, averaging a daily high of 19°C. The extended outlook indicates occasional showers on 3 days, with 3.1 mm total accumulation. Conditions are suitable for most outdoor activities; carry an umbrella on days with showers.