15-Day Weather Forecast - Gwangju

15-day weather forecast for Gwangju: 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°19°TodaySep28°19°Tmrw27°21°Sun28°19°Mon29°19°Tue30°17°Wed31°17°Thu22°19°Fri27°20°Sat28°19°Sun28°18°Mon23°19°Tue21°15°Wed26°15°Thu26°14°Fri
Colour scale for daily high temperature bars

15-Day Weather Forecast

Updated just now
  • Date
    High / Low
  • Fri, Sep 11Today
    +27°/+19°
    feels +30°0.3 mm · 20%8 km/hUV 7 · Hi
    06:1118:45
  • Sat, Sep 12Tomorrow
    +28°/+19°
    feels +32°0 mm · 2%5 km/hUV 6 · Hi
    06:1218:44
  • Sun, Sep 13Sun
    +27°/+21°
    feels +31°8 km/hUV 7 · Hi
    06:1318:42
  • Mon, Sep 14Mon
    +28°/+19°
    feels +27°14 km/hUV 7 · Hi
    06:1418:41
  • Tue, Sep 15Tue
    +29°/+19°
    feels +30°0 mm · 4%12 km/hUV 6 · Hi
    06:1418:39
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  • Wed, Sep 16Wed
    +30°/+17°
    feels +32°10 km/hUV 7 · Hi
    06:1518:38
  • Thu, Sep 17Thu
    +31°/+17°
    feels +31°22.2 mm · 14%14 km/hUV 7 · Hi
    06:1618:36
  • Fri, Sep 18Fri
    +22°/+19°
    feels +25°75.0 mm · 39%10 km/hUV 4 · Mod
    06:1618:35
  • Sat, Sep 19Sat
    +27°/+20°
    feels +31°0.6 mm · 16%3 km/hUV 2 · Low
    06:1718:34
  • Sun, Sep 20Sun
    +28°/+19°
    feels +31°0 mm · 12%9 km/hUV 6 · Mod
    06:1818:32
  • Mon, Sep 21Mon
    +28°/+18°
    feels +32°0 mm · 17%7 km/hUV 3 · Mod
    06:1918:31
  • Tue, Sep 22Tue
    +23°/+19°
    feels +29°41.0 mm · 26%11 km/hUV 3 · Low
    06:1918:29
  • Wed, Sep 23Wed
    +21°/+15°
    feels +21°2.8 mm · 25%13 km/hUV 7 · Hi
    06:2018:28
  • Thu, Sep 24Thu
    +26°/+15°
    feels +28°0 mm · 17%6 km/hUV 6 · Hi
    06:2118:26
  • Fri, Sep 25Fri
    +26°/+14°
    feels +27°0 mm · 16%7 km/hUV 6 · Hi
    06:2218:25

Weather Insight

Gwangju'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 — 17 of the last 19 days with published data have run warmer than normal. Air quality is currently Moderate (AQI 66), driven mainly by PM2.5 at 19 μg/m³.

Today vs Normal

27°C+1° above normal

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

17 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: 30°C30°2026-08-20: 31°C31°2026-08-21: 31°C31°2026-08-22: 32°C32°2026-08-23: 32°C32°2026-08-24: 33°C33°2026-08-25: 33°C33°2026-08-26: 34°C34°2026-08-27: 32°C32°2026-08-28: 31°C31°2026-08-29: 29°C29°2026-08-30: 31°C31°

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

Air Quality

Air Quality
Moderate

Air quality is acceptable for most people. Unusually sensitive individuals should consider reducing prolonged or heavy outdoor exertion.

Extended Outlook for Gwangju

Over the next 15 days, Gwangju is forecast to see temperatures ranging from 13°C to 31°C, averaging a daily high of 27°C. The extended outlook indicates significant rainfall totalling 141.9 mm spread across 6 days. Conditions are suitable for most outdoor activities; carry an umbrella on days with showers.