Tokyo Weather OverviewScoresFors & AgainstsWeatherPhotos Average Temperature Jan 48 °F9 °C Feb 51 °F11 °C Mar 57 °F14 °C Apr 64 °F18 °C May 73 °F23 °C Jun 77 °F25 °C Jul 79 °F26 °C Aug 90 °F32 °C Sep 82 °F28 °C Oct 70 °F21 °C Nov 64 °F18 °C Dec 54 °F12 °C Humidity Jan 36% Feb 49% Mar 44% Apr 51% May 56% Jun 73% Jul 81% Aug 71% Sep 67% Oct 66% Nov 53% Dec 50% Rain Jan 7mm Feb 23mm Mar 43mm Apr 49mm May 41mm Jun 175mm Jul 90mm Aug 66mm Sep 108mm Oct 187mm Nov 67mm Dec 48mm Clouds Jan 14% Feb 63% Mar 63% Apr 51% May 60% Jun 78% Jul 91% Aug 61% Sep 60% Oct 82% Nov 50% Dec 63% Air quality US AQI Jan 38 Feb 46 Mar 48 Apr 51 May 50 Jun 39 Jul 43 Aug 47 Sep 35 Oct 36 Nov 48 Dec 41 Sun Jan 3UVI Feb 4UVI Mar 5UVI Apr 5UVI May 6UVI Jun 5UVI Jul 5UVI Aug 8UVI Sep 6UVI Oct 4UVI Nov 3UVI Dec 2UVI