Caye Caulker Weather OverviewScoresFors & AgainstsWeatherPhotos Average Temperature Jan 81 °F27 °C Feb 82 °F28 °C Mar 82 °F28 °C Apr 84 °F29 °C May 84 °F29 °C Jun 86 °F30 °C Jul 86 °F30 °C Aug 86 °F30 °C Sep 86 °F30 °C Oct 86 °F30 °C Nov 84 °F29 °C Dec 82 °F28 °C Humidity Jan 82% Feb 82% Mar 81% Apr 82% May 85% Jun 84% Jul 83% Aug 83% Sep 82% Oct 85% Nov 84% Dec 81% Rain Jan 44mm Feb 20mm Mar 20mm Apr 32mm May 20mm Jun 47mm Jul 47mm Aug 43mm Sep 111mm Oct 144mm Nov 76mm Dec 32mm Clouds Jan 19% Feb 19% Mar 15% Apr 21% May 37% Jun 53% Jul 43% Aug 28% Sep 47% Oct 61% Nov 34% Dec 23% Sun Jan 8UVI Feb 10UVI Mar 12UVI Apr 12UVI May 10UVI Jun 9UVI Jul 10UVI Aug 10UVI Sep 9UVI Oct 7UVI Nov 7UVI Dec 7UVI