Weihai Weather OverviewScoresFors & AgainstsWeatherPhotos Average Temperature Jan 37 °F3 °C Feb 37 °F3 °C Mar 45 °F7 °C Apr 52 °F11 °C May 64 °F18 °C Jun 72 °F22 °C Jul 78 °F26 °C Aug 79 °F26 °C Sep 74 °F24 °C Oct 65 °F19 °C Nov 53 °F12 °C Dec 41 °F5 °C Humidity Jan 51% Feb 54% Mar 57% Apr 60% May 61% Jun 74% Jul 83% Aug 79% Sep 66% Oct 59% Nov 56% Dec 56% Rain Jan 0mm Feb 3mm Mar 5mm Apr 9mm May 6mm Jun 58mm Jul 11mm Aug 35mm Sep 8mm Oct 2mm Nov 12mm Dec 7mm Clouds Jan 37% Feb 64% Mar 29% Apr 60% May 39% Jun 58% Jul 39% Aug 48% Sep 40% Oct 41% Nov 37% Dec 56% Air quality US AQI Jan 104 Feb 106 Mar 120 Apr 97 May 93 Jun 84 Jul 88 Aug 67 Sep 68 Oct 76 Nov 79 Dec 100 Sun Jan 2UVI Feb 2UVI Mar 5UVI Apr 3UVI May 7UVI Jun 3UVI Jul 9UVI Aug 8UVI Sep 3UVI Oct 4UVI Nov 2UVI Dec 2UVI