Chongjin Weather OverviewScoresFors & AgainstsWeatherPhotos Chongjin has a humid continental climate with cold, dry winters and warm, rainy summers. Average Temperature Jan 30 °F-1 °C Feb 33 °F1 °C Mar 43 °F6 °C Apr 53 °F12 °C May 63 °F17 °C Jun 67 °F20 °C Jul 73 °F23 °C Aug 76 °F25 °C Sep 71 °F22 °C Oct 59 °F15 °C Nov 45 °F7 °C Dec 34 °F1 °C Humidity Jan 44% Feb 49% Mar 50% Apr 51% May 61% Jun 79% Jul 86% Aug 82% Sep 68% Oct 56% Nov 47% Dec 49% Rain Jan 1mm Feb 3mm Mar 6mm Apr 6mm May 8mm Jun 106mm Jul 39mm Aug 50mm Sep 13mm Oct 9mm Nov 8mm Dec 9mm Clouds Jan 9% Feb 21% Mar 35% Apr 39% May 43% Jun 59% Jul 77% Aug 61% Sep 30% Oct 30% Nov 34% Dec 37% Sun Jan 2UVI Feb 1UVI Mar 3UVI Apr 3UVI May 6UVI Jun 3UVI Jul 5UVI Aug 5UVI Sep 3UVI Oct 3UVI Nov 1UVI Dec 1UVI