Gdansk Weather OverviewScoresFors & AgainstsWeatherPhotos Average Temperature Jan 34 °F1 °C Feb 40 °F5 °C Mar 46 °F8 °C Apr 52 °F11 °C May 62 °F17 °C Jun 70 °F21 °C Jul 69 °F21 °C Aug 73 °F23 °C Sep 63 °F17 °C Oct 56 °F14 °C Nov 45 °F7 °C Dec 40 °F5 °C Humidity Jan 81% Feb 80% Mar 76% Apr 67% May 70% Jun 70% Jul 75% Aug 72% Sep 76% Oct 81% Nov 84% Dec 82% Rain Jan 25mm Feb 13mm Mar 21mm Apr 4mm May 30mm Jun 60mm Jul 36mm Aug 23mm Sep 31mm Oct 26mm Nov 33mm Dec 19mm Clouds Jan 85% Feb 76% Mar 67% Apr 23% May 70% Jun 42% Jul 50% Aug 55% Sep 64% Oct 79% Nov 85% Dec 82% Air quality US AQI Jan 45 Feb 40 Mar 32 Apr 33 May 33 Jun 29 Jul 28 Aug 34 Sep 32 Oct 33 Nov 48 Dec 41 Sun Jan 0UVI Feb 1UVI Mar 2UVI Apr 4UVI May 4UVI Jun 6UVI Jul 5UVI Aug 5UVI Sep 3UVI Oct 2UVI Nov 1UVI Dec 0UVI