Cabo San Lucas Weather OverviewScoresFors & AgainstsWeatherPhotos Average Temperature Jan 77 °F25 °C Feb 75 °F24 °C Mar 79 °F26 °C Apr 79 °F26 °C May 77 °F25 °C Jun 82 °F28 °C Jul 88 °F31 °C Aug 90 °F32 °C Sep 88 °F31 °C Oct 86 °F30 °C Nov 82 °F28 °C Dec 79 °F26 °C Humidity Jan 57% Feb 59% Mar 53% Apr 53% May 58% Jun 58% Jul 61% Aug 63% Sep 67% Oct 62% Nov 64% Dec 62% Rain Jan 7mm Feb 1mm Mar 1mm Apr 1mm May 1mm Jun 1mm Jul 12mm Aug 32mm Sep 40mm Oct 15mm Nov 42mm Dec 1mm Clouds Jan 26% Feb 24% Mar 7% Apr 18% May 6% Jun 10% Jul 16% Aug 37% Sep 31% Oct 27% Nov 44% Dec 15% Sun Jan 6UVI Feb 8UVI Mar 11UVI Apr 11UVI May 12UVI Jun 12UVI Jul 11UVI Aug 10UVI Sep 10UVI Oct 8UVI Nov 6UVI Dec 6UVI