Mamaia Weather OverviewScoresFors & AgainstsWeatherPhotos Average Temperature Jan 39 °F4 °C Feb 45 °F7 °C Mar 54 °F12 °C Apr 55 °F13 °C May 68 °F20 °C Jun 81 °F27 °C Jul 79 °F26 °C Aug 81 °F27 °C Sep 77 °F25 °C Oct 64 °F18 °C Nov 62 °F17 °C Dec 48 °F9 °C Humidity Jan 79% Feb 73% Mar 64% Apr 75% May 78% Jun 72% Jul 68% Aug 67% Sep 68% Oct 82% Nov 82% Dec 75% Rain Jan 29mm Feb 9mm Mar 14mm Apr 13mm May 17mm Jun 117mm Jul 22mm Aug 7mm Sep 28mm Oct 26mm Nov 9mm Dec 17mm Clouds Jan 77% Feb 67% Mar 43% Apr 55% May 51% Jun 25% Jul 18% Aug 2% Sep 29% Oct 16% Nov 64% Dec 47% Air quality US AQI Jan 16 Feb 10 Mar 14 Apr 7 May 3 Jun 8 Jul 9 Aug 11 Sep 10 Oct 22 Nov 12 Dec 16 Sun Jan 1UVI Feb 2UVI Mar 4UVI Apr 4UVI May 5UVI Jun 8UVI Jul 8UVI Aug 8UVI Sep 5UVI Oct 3UVI Nov 2UVI Dec 1UVI