Santa Teresa Weather OverviewScoresFors & AgainstsWeatherPhotos Average Temperature Jan 86 °F30 °C Feb 86 °F30 °C Mar 90 °F32 °C Apr 88 °F31 °C May 86 °F30 °C Jun 86 °F30 °C Jul 86 °F30 °C Aug 86 °F30 °C Sep 84 °F29 °C Oct 82 °F28 °C Nov 84 °F29 °C Dec 84 °F29 °C Humidity Jan 64% Feb 65% Mar 61% Apr 67% May 74% Jun 75% Jul 74% Aug 75% Sep 75% Oct 78% Nov 74% Dec 71% Rain Jan 11mm Feb 6mm Mar 8mm Apr 49mm May 216mm Jun 130mm Jul 102mm Aug 140mm Sep 130mm Oct 246mm Nov 80mm Dec 39mm Clouds Jan 10% Feb 24% Mar 25% Apr 43% May 84% Jun 68% Jul 57% Aug 66% Sep 70% Oct 80% Nov 55% Dec 25% Sun Jan 10UVI Feb 11UVI Mar 12UVI Apr 11UVI May 7UVI Jun 9UVI Jul 10UVI Aug 10UVI Sep 10UVI Oct 8UVI Nov 9UVI Dec 9UVI