HUMIDITY AND CLOUD COVER FORECAST FOR PARANAL, CHILE. Forecast period starting at 00:00 on 2015.08.04 (day 216 of 2015). Forecast Period | HUMIDITY | CLOUD COVER (UTC) | Avg UTH(%) Sig UTH PWV(mm) | %Total %Opaque %Transp. T.Index | CldAdj 2015.08.04 00h | 4.9 0.9 1.09 | 0 0 0 1.00 | 0 2015.08.04 00h-03h | 5.1 0.8 1.11 | 0 0 0 1.00 | 0 2015.08.04 03h-06h | 5.6 0.9 1.18 | 0 0 0 1.00 | 0 2015.08.04 06h-09h | 7.7 2.4 1.28 | 0 0 0 1.00 | 0 2015.08.04 09h-12h | 9.4 3.3 1.37 | 0 0 0 1.00 | 0