Nantong Weather OverviewScoresFors & AgainstsWeatherPhotos Average Temperature Jan 46 °F8 °C Feb 46 °F8 °C Mar 57 °F14 °C Apr 66 °F19 °C May 75 °F24 °C Jun 80 °F27 °C Jul 84 °F29 °C Aug 88 °F31 °C Sep 81 °F27 °C Oct 72 °F22 °C Nov 66 °F19 °C Dec 52 °F11 °C Humidity Jan 65% Feb 72% Mar 64% Apr 72% May 58% Jun 72% Jul 82% Aug 78% Sep 81% Oct 69% Nov 65% Dec 65% Rain Jan 24mm Feb 45mm Mar 14mm Apr 26mm May 31mm Jun 33mm Jul 59mm Aug 58mm Sep 62mm Oct 9mm Nov 14mm Dec 36mm Clouds Jan 63% Feb 85% Mar 67% Apr 75% May 61% Jun 83% Jul 85% Aug 29% Sep 34% Oct 64% Nov 61% Dec 58% Air quality US AQI Jan 159 Feb 150 Mar 129 Apr 106 May 91 Jun 84 Jul 62 Aug 73 Sep 84 Oct 92 Nov 131 Dec 153 Sun Jan 4UVI Feb 5UVI Mar 6UVI Apr 5UVI May 9UVI Jun 5UVI Jul 5UVI Aug 9UVI Sep 7UVI Oct 5UVI Nov 4UVI Dec 3UVI