San José Weather OverviewScoresFors & AgainstsWeatherPhotos Average Temperature Jan 79 °F26 °C Feb 80 °F27 °C Mar 81 °F27 °C Apr 81 °F27 °C May 79 °F26 °C Jun 77 °F25 °C Jul 77 °F25 °C Aug 77 °F25 °C Sep 75 °F24 °C Oct 75 °F24 °C Nov 77 °F25 °C Dec 77 °F25 °C Humidity Jan 67% Feb 65% Mar 67% Apr 73% May 90% Jun 87% Jul 85% Aug 87% Sep 91% Oct 93% Nov 82% Dec 77% Rain Jan 51mm Feb 54mm Mar 52mm Apr 154mm May 411mm Jun 383mm Jul 240mm Aug 278mm Sep 408mm Oct 404mm Nov 321mm Dec 142mm Clouds Jan 29% Feb 41% Mar 44% Apr 67% May 89% Jun 80% Jul 73% Aug 78% Sep 80% Oct 86% Nov 73% Dec 50% Air quality US AQI Jan 25 Feb 82 Mar 82 Apr 82 May 82 Jun 82 Jul 82 Aug 82 Sep 82 Oct 82 Nov 82 Dec 29 Sun Jan 10UVI Feb 11UVI Mar 12UVI Apr 10UVI May 7UVI Jun 8UVI Jul 9UVI Aug 8UVI Sep 8UVI Oct 7UVI Nov 8UVI Dec 8UVI
