15-Day Weather Forecast - Gdansk

15-day weather forecast for Gdansk: temperatures from 8°C (46°F) to 20°C (68°F). Average daily high 17°C (63°F) over the next 15 days.

Hourly Forecast by Day

Today·11 Sep
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Temperature · peaks at +18°C

15-Day Temperature Trend

18°11°TodaySep20°11°Tmrw19°15°Sun19°14°Mon17°11°Tue18°13°Wed17°13°Thu18°13°Fri17°12°Sat15°11°Sun16°11°Mon17°12°Tue17°11°Wed14°9°Thu15°8°Fri
Colour scale for daily high temperature bars

15-Day Weather Forecast

Updated just now
  • Date
    High / Low
  • Fri, Sep 11Today
    +18°/+11°
    feels +17°12 km/hUV 4 · Mod
    06:1019:12
  • Sat, Sep 12Tomorrow
    +20°/+11°
    feels +19°10 km/hUV 4 · Mod
    06:1219:09
  • Sun, Sep 13Sun
    +19°/+15°
    feels +18°1.2 mm · 50%14 km/hUV 2 · Low
    06:1419:07
  • Mon, Sep 14Mon
    +19°/+14°
    feels +19°0 mm · 11%14 km/hUV 4 · Mod
    06:1619:04
  • Tue, Sep 15Tue
    +17°/+11°
    feels +16°0 mm · 24%11 km/hUV 4 · Mod
    06:1819:02
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  • Wed, Sep 16Wed
    +18°/+13°
    feels +16°0.3 mm · 39%17 km/hUV 4 · Mod
    06:1918:59
  • Thu, Sep 17Thu
    +17°/+13°
    feels +15°0 mm · 11%16 km/hUV 3 · Mod
    06:2118:57
  • Fri, Sep 18Fri
    +18°/+13°
    feels +16°1.2 mm · 38%17 km/hUV 3 · Mod
    06:2318:54
  • Sat, Sep 19Sat
    +17°/+12°
    feels +14°0.6 mm · 24%19 km/hUV 3 · Low
    06:2518:52
  • Sun, Sep 20Sun
    +15°/+11°
    feels +11°0.6 mm · 22%24 km/hUV 4 · Mod
    06:2718:49
  • Mon, Sep 21Mon
    +16°/+11°
    feels +13°3.0 mm · 25%19 km/hUV 4 · Mod
    06:2818:47
  • Tue, Sep 22Tue
    +17°/+12°
    feels +14°3.3 mm · 24%21 km/hUV 3 · Low
    06:3018:44
  • Wed, Sep 23Wed
    +17°/+11°
    feels +13°2.1 mm · 24%27 km/hUV 3 · Mod
    06:3218:42
  • Thu, Sep 24Thu
    +14°/+9°
    feels +11°0 mm · 27%14 km/hUV 3 · Low
    06:3418:39
  • Fri, Sep 25Fri
    +15°/+8°
    feels +12°1.5 mm · 20%28 km/hUV 3 · Low
    06:3618:37

Weather Insight

Gdansk's 15-day outlook ranges from a low of 8°C to a high of 20°C, with an average daytime high near 17°C. That's 1° below the long-term average high of 18°C for this time of year. Air quality is currently good (AQI 28), with no notable outdoor health concerns.

Today vs Normal

18°C0° below normal

The long-term average high for today is 18°C.

16 of the last 28 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.

2026-08-28: 22°C22°2026-08-29: 21°C21°2026-08-30: 23°C23°2026-08-31: 22°C22°2026-09-01: 19°C19°2026-09-02: 20°C20°2026-09-03: 21°C21°2026-09-04: 18°C18°2026-09-05: 18°C18°2026-09-06: 18°C18°2026-09-07: 19°C19°2026-09-08: 23°C23°

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 Gdansk

Over the next 15 days, Gdansk is forecast to see temperatures ranging from 7°C to 21°C, averaging a daily high of 17°C. The extended outlook indicates frequent showers on 9 out of 15 days. Conditions are suitable for most outdoor activities; carry an umbrella on days with showers.