Haarlem Weather OverviewScoresFors & AgainstsWeatherPhotos Average Temperature Jan 43 °F6 °C Feb 48 °F9 °C Mar 50 °F10 °C Apr 56 °F14 °C May 57 °F14 °C Jun 68 °F20 °C Jul 68 °F20 °C Aug 70 °F21 °C Sep 64 °F18 °C Oct 57 °F14 °C Nov 46 °F8 °C Dec 46 °F8 °C Humidity Jan 73% Feb 75% Mar 75% Apr 64% May 70% Jun 71% Jul 73% Aug 73% Sep 74% Oct 82% Nov 82% Dec 81% Rain Jan 24mm Feb 25mm Mar 49mm Apr 22mm May 17mm Jun 205mm Jul 28mm Aug 30mm Sep 64mm Oct 71mm Nov 47mm Dec 40mm Clouds Jan 88% Feb 58% Mar 72% Apr 41% May 61% Jun 60% Jul 51% Aug 56% Sep 65% Oct 83% Nov 88% Dec 79% Air quality US AQI Jan 18 Feb 20 Mar 19 Apr 18 May 15 Jun 16 Jul 14 Aug 14 Sep 15 Oct 15 Nov 16 Dec 16 Sun Jan 1UVI Feb 1UVI Mar 2UVI Apr 4UVI May 4UVI Jun 6UVI Jul 5UVI Aug 5UVI Sep 3UVI Oct 2UVI Nov 1UVI Dec 0UVI
